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Discrete cosine transform, the Glossary

Index Discrete cosine transform

A discrete cosine transform (DCT) expresses a finite sequence of data points in terms of a sum of cosine functions oscillating at different frequencies.[1]

Table of Contents

  1. 366 relations: AAC-LD, Academic Press, Adaptive feedback cancellation, Advanced Audio Coding, Advanced Video Coding, Alliance for Open Media, Amplitude, Analog-to-digital converter, Android (operating system), Anil K. Jain (electrical engineer, born 1946), Animation, Aperture synthesis, Apple Inc., Apple ProRes, Approximation theory, Arithmetic circuit complexity, Artist, Astrophotography, ATRAC, ATSC 3.0, Audio coding format, Audio Engineering Society, Audio signal processing, Authentication, AV1, École Polytechnique Fédérale de Lausanne, Bandwidth (computing), BBC, BBC News, Beamforming, Better Portable Graphics, Biometrics, Bit, Bitmovin, BlackBerry, Blu-ray, Bokeh, Boundary value problem, Brain herniation, Brain tumor, BT Group, Butterfly diagram, Camcorder, CELT, Cepstrum, Chebyshev polynomials, China Multimedia Mobile Broadcasting, Classification of discontinuities, Clenshaw–Curtis quadrature, Code, ... Expand index (316 more) »

  2. Discrete transforms
  3. H.26x
  4. Image compression
  5. JPEG

AAC-LD

The MPEG-4 Low Delay Audio Coder (a.k.a. AAC Low Delay, or AAC-LD) is audio compression standard designed to combine the advantages of perceptual audio coding with the low delay necessary for two-way communication. Discrete cosine transform and AAC-LD are lossy compression algorithms.

See Discrete cosine transform and AAC-LD

Academic Press

Academic Press (AP) is an academic book publisher founded in 1941.

See Discrete cosine transform and Academic Press

Adaptive feedback cancellation

Adaptive feedback cancellation is a common method of cancelling audio feedback in a variety of electro-acoustic systems such as digital hearing aids.

See Discrete cosine transform and Adaptive feedback cancellation

Advanced Audio Coding

Advanced Audio Coding (AAC) is an audio coding standard for lossy digital audio compression. Discrete cosine transform and Advanced Audio Coding are lossy compression algorithms.

See Discrete cosine transform and Advanced Audio Coding

Advanced Video Coding

Advanced Video Coding (AVC), also referred to as H.264 or MPEG-4 Part 10, is a video compression standard based on block-oriented, motion-compensated coding. Discrete cosine transform and Advanced Video Coding are H.26x and video compression.

See Discrete cosine transform and Advanced Video Coding

The Alliance for Open Media (AOMedia) is a non-profit industry consortium headquartered in Wakefield, Massachusetts, and formed to develop open, royalty-free technology for multimedia delivery.

See Discrete cosine transform and Alliance for Open Media

Amplitude

The amplitude of a periodic variable is a measure of its change in a single period (such as time or spatial period).

See Discrete cosine transform and Amplitude

Analog-to-digital converter

In electronics, an analog-to-digital converter (ADC, A/D, or A-to-D) is a system that converts an analog signal, such as a sound picked up by a microphone or light entering a digital camera, into a digital signal. Discrete cosine transform and analog-to-digital converter are digital signal processing.

See Discrete cosine transform and Analog-to-digital converter

Android (operating system)

Android is a mobile operating system based on a modified version of the Linux kernel and other open-source software, designed primarily for touchscreen mobile devices such as smartphones and tablets.

See Discrete cosine transform and Android (operating system)

Anil K. Jain (electrical engineer, born 1946)

Anil K. Jain (January 21, 1946 – November 14, 1988). Discrete cosine transform and Anil K. Jain (electrical engineer, born 1946) are video compression.

See Discrete cosine transform and Anil K. Jain (electrical engineer, born 1946)

Animation

Animation is a filmmaking technique by which still images are manipulated to create moving images.

See Discrete cosine transform and Animation

Aperture synthesis

Aperture synthesis or synthesis imaging is a type of interferometry that mixes signals from a collection of telescopes to produce images having the same angular resolution as an instrument the size of the entire collection.

See Discrete cosine transform and Aperture synthesis

Apple Inc.

Apple Inc. is an American multinational corporation and technology company headquartered in Cupertino, California, in Silicon Valley.

See Discrete cosine transform and Apple Inc.

Apple ProRes

Apple ProRes is a high quality, "visually lossless" lossy video compression format developed by Apple Inc. for use in post-production that supports video resolution up to 8K.

See Discrete cosine transform and Apple ProRes

Approximation theory

In mathematics, approximation theory is concerned with how functions can best be approximated with simpler functions, and with quantitatively characterizing the errors introduced thereby.

See Discrete cosine transform and Approximation theory

Arithmetic circuit complexity

In computational complexity theory, arithmetic circuits are the standard model for computing polynomials.

See Discrete cosine transform and Arithmetic circuit complexity

Artist

An artist is a person engaged in an activity related to creating art, practicing the arts, or demonstrating an art.

See Discrete cosine transform and Artist

Astrophotography

Astrophotography, also known as astronomical imaging, is the photography or imaging of astronomical objects, celestial events, or areas of the night sky.

See Discrete cosine transform and Astrophotography

ATRAC

Adaptive Transform Acoustic Coding (ATRAC) is a family of proprietary audio compression algorithms developed by Sony.

See Discrete cosine transform and ATRAC

ATSC 3.0

ATSC 3.0 is a major version of the ATSC standards for terrestrial television broadcasting created by the Advanced Television Systems Committee (ATSC).

See Discrete cosine transform and ATSC 3.0

Audio coding format

An audio coding format (or sometimes audio compression format) is a content representation format for storage or transmission of digital audio (such as in digital television, digital radio and in audio and video files).

See Discrete cosine transform and Audio coding format

Audio Engineering Society

The Audio Engineering Society (AES) is a professional body for engineers, scientists, other individuals with an interest or involvement in the professional audio industry.

See Discrete cosine transform and Audio Engineering Society

Audio signal processing

Audio signal processing is a subfield of signal processing that is concerned with the electronic manipulation of audio signals.

See Discrete cosine transform and Audio signal processing

Authentication

Authentication (from authentikos, "real, genuine", from αὐθέντης authentes, "author") is the act of proving an assertion, such as the identity of a computer system user.

See Discrete cosine transform and Authentication

AV1

AOMedia Video 1 (AV1) is an open, royalty-free video coding format initially designed for video transmissions over the Internet. Discrete cosine transform and AV1 are lossy compression algorithms and video compression.

See Discrete cosine transform and AV1

École Polytechnique Fédérale de Lausanne

The École Polytechnique Fédérale de Lausanne (EPFL) is a public research university in Lausanne, Switzerland.

See Discrete cosine transform and École Polytechnique Fédérale de Lausanne

Bandwidth (computing)

In computing, bandwidth is the maximum rate of data transfer across a given path.

See Discrete cosine transform and Bandwidth (computing)

BBC

The British Broadcasting Corporation (BBC) is a British public service broadcaster headquartered at Broadcasting House in London, England.

See Discrete cosine transform and BBC

BBC News

BBC News is an operational business division of the British Broadcasting Corporation (BBC) responsible for the gathering and broadcasting of news and current affairs in the UK and around the world.

See Discrete cosine transform and BBC News

Beamforming

Beamforming or spatial filtering is a signal processing technique used in sensor arrays for directional signal transmission or reception.

See Discrete cosine transform and Beamforming

Better Portable Graphics

Better Portable Graphics (BPG) is a file format for coding digital images, which was created by programmer Fabrice Bellard in 2014. Discrete cosine transform and Better Portable Graphics are image compression.

See Discrete cosine transform and Better Portable Graphics

Biometrics

Biometrics are body measurements and calculations related to human characteristics and features.

See Discrete cosine transform and Biometrics

Bit

The bit is the most basic unit of information in computing and digital communication.

See Discrete cosine transform and Bit

Bitmovin

Bitmovin is a multimedia technology company which provides services that transcode digital video and audio to streaming formats using cloud computing, and streaming media players.

See Discrete cosine transform and Bitmovin

BlackBerry

BlackBerry is a discontinued brand of smartphones and other related mobile services and devices.

See Discrete cosine transform and BlackBerry

Blu-ray

Blu-ray (Blu-ray Disc or BD) is a digital optical disc data storage format designed to supersede the DVD format.

See Discrete cosine transform and Blu-ray

Bokeh

In photography, bokeh is the aesthetic quality of the blur produced in out-of-focus parts of an image, whether foreground or background or both.

See Discrete cosine transform and Bokeh

Boundary value problem

In the study of differential equations, a boundary-value problem is a differential equation subjected to constraints called boundary conditions.

See Discrete cosine transform and Boundary value problem

Brain herniation

Brain herniation is a potentially deadly side effect of very high pressure within the skull that occurs when a part of the brain is squeezed across structures within the skull.

See Discrete cosine transform and Brain herniation

Brain tumor

A brain tumor occurs when abnormal cells form within the brain.

See Discrete cosine transform and Brain tumor

BT Group

BT Group plc (formerly British Telecom) is a British multinational telecommunications holding company headquartered in London, England.

See Discrete cosine transform and BT Group

Butterfly diagram

In the context of fast Fourier transform algorithms, a butterfly is a portion of the computation that combines the results of smaller discrete Fourier transforms (DFTs) into a larger DFT, or vice versa (breaking a larger DFT up into subtransforms).

See Discrete cosine transform and Butterfly diagram

Camcorder

A camcorder is a self-contained portable electronic device with video and recording as its primary function.

See Discrete cosine transform and Camcorder

CELT

Constrained Energy Lapped Transform (CELT) is an open, royalty-free lossy audio compression format and a free software codec with especially low algorithmic delay for use in low-latency audio communication.

See Discrete cosine transform and CELT

Cepstrum

In Fourier analysis, the cepstrum (plural cepstra, adjective cepstral) is the result of computing the inverse Fourier transform (IFT) of the logarithm of the estimated signal spectrum.

See Discrete cosine transform and Cepstrum

Chebyshev polynomials

The Chebyshev polynomials are two sequences of polynomials related to the cosine and sine functions, notated as T_n(x) and U_n(x).

See Discrete cosine transform and Chebyshev polynomials

China Mobile Multimedia Broadcasting (CMMB) is a mobile television and multimedia standard developed and specified in China by the State Administration of Radio, Film, and Television (SARFT).

See Discrete cosine transform and China Multimedia Mobile Broadcasting

Classification of discontinuities

Continuous functions are of utmost importance in mathematics, functions and applications.

See Discrete cosine transform and Classification of discontinuities

Clenshaw–Curtis quadrature

Clenshaw–Curtis quadrature and Fejér quadrature are methods for numerical integration, or "quadrature", that are based on an expansion of the integrand in terms of Chebyshev polynomials.

See Discrete cosine transform and Clenshaw–Curtis quadrature

Code

In communications and information processing, code is a system of rules to convert information—such as a letter, word, sound, image, or gesture—into another form, sometimes shortened or secret, for communication through a communication channel or storage in a storage medium.

See Discrete cosine transform and Code

Color

Color (American English) or colour (British and Commonwealth English) is the visual perception based on the electromagnetic spectrum.

See Discrete cosine transform and Color

Compact disc

The compact disc (CD) is a digital optical disc data storage format that was codeveloped by Philips and Sony to store and play digital audio recordings.

See Discrete cosine transform and Compact disc

Compressed sensing

Compressed sensing (also known as compressive sensing, compressive sampling, or sparse sampling) is a signal processing technique for efficiently acquiring and reconstructing a signal, by finding solutions to underdetermined linear systems.

See Discrete cosine transform and Compressed sensing

Compression artifact

A compression artifact (or artefact) is a noticeable distortion of media (including images, audio, and video) caused by the application of lossy compression. Discrete cosine transform and compression artifact are data compression.

See Discrete cosine transform and Compression artifact

Computer

A computer is a machine that can be programmed to automatically carry out sequences of arithmetic or logical operations (computation).

See Discrete cosine transform and Computer

Computer memory

Computer memory stores information, such as data and programs, for immediate use in the computer.

See Discrete cosine transform and Computer memory

Consumer electronics

Consumer electronics or home electronics are electronic (analog or digital) equipment intended for everyday use, typically in private homes.

See Discrete cosine transform and Consumer electronics

Content-based image retrieval

Content-based image retrieval, also known as query by image content (QBIC) and content-based visual information retrieval (CBVIR), is the application of computer vision techniques to the image retrieval problem, that is, the problem of searching for digital images in large databases (see this survey (Original source, 404'd), Michael Lew, et al., ACM Transactions on Multimedia Computing, Communications, and Applications, pp.

See Discrete cosine transform and Content-based image retrieval

Cook Codec

The cook codec is a lossy audio compression codec developed by RealNetworks.

See Discrete cosine transform and Cook Codec

Cooley–Tukey FFT algorithm

The Cooley–Tukey algorithm, named after J. W. Cooley and John Tukey, is the most common fast Fourier transform (FFT) algorithm.

See Discrete cosine transform and Cooley–Tukey FFT algorithm

A copyright is a type of intellectual property that gives its owner the exclusive legal right to copy, distribute, adapt, display, and perform a creative work, usually for a limited time.

See Discrete cosine transform and Copyright

Corner detection

Corner detection is an approach used within computer vision systems to extract certain kinds of features and infer the contents of an image.

See Discrete cosine transform and Corner detection

CRC Press

The CRC Press, LLC is an American publishing group that specializes in producing technical books.

See Discrete cosine transform and CRC Press

Cryptography

Cryptography, or cryptology (from κρυπτός|translit.

See Discrete cosine transform and Cryptography

Daala

Daala is a video coding format under development by the Xiph.Org Foundation under the lead of Timothy B. Terriberry mainly sponsored by the Mozilla Corporation.

See Discrete cosine transform and Daala

Data compression

In information theory, data compression, source coding, or bit-rate reduction is the process of encoding information using fewer bits than the original representation. Discrete cosine transform and data compression are video compression.

See Discrete cosine transform and Data compression

Data compression ratio

Data compression ratio, also known as compression power, is a measurement of the relative reduction in size of data representation produced by a data compression algorithm. Discrete cosine transform and data compression ratio are data compression.

See Discrete cosine transform and Data compression ratio

Data extraction is the act or process of retrieving data out of (usually unstructured or poorly structured) data sources for further data processing or data storage (data migration).

See Discrete cosine transform and Data extraction

Delta modulation

Delta modulation (DM or Δ-modulation) is an analog-to-digital and digital-to-analog signal conversion technique used for transmission of voice information where quality is not of primary importance. Discrete cosine transform and Delta modulation are data compression and digital signal processing.

See Discrete cosine transform and Delta modulation

Digital audio

Digital audio is a representation of sound recorded in, or converted into, digital form.

See Discrete cosine transform and Digital audio

Digital Audio Broadcasting

Digital Audio Broadcasting (DAB) is a digital radio standard for broadcasting digital audio radio services in many countries around the world, defined, supported, marketed and promoted by the WorldDAB organisation.

See Discrete cosine transform and Digital Audio Broadcasting

Digital audio radio service

Digital audio radio service (DARS) is any type of digital radio program service.

See Discrete cosine transform and Digital audio radio service

Digital camera

A digital camera, also called a digicam, is a camera that captures photographs in digital memory.

See Discrete cosine transform and Digital camera

Digital cassettes

Digital audio cassette formats introduced to the professional audio and consumer markets.

See Discrete cosine transform and Digital cassettes

Digital cinema

Digital cinema refers to the adoption of digital technology within the film industry to distribute or project motion pictures as opposed to the historical use of reels of motion picture film, such as 35 mm film.

See Discrete cosine transform and Digital cinema

Digital cinematography

Digital cinematography is the process of capturing (recording) a motion picture using digital image sensors rather than through film stock.

See Discrete cosine transform and Digital cinematography

Digital distribution

Digital distribution, also referred to as content delivery, online distribution, or electronic software distribution, among others, is the delivery or distribution of digital media content such as audio, video, e-books, video games, and other software.

See Discrete cosine transform and Digital distribution

Digital electronics

Digital electronics is a field of electronics involving the study of digital signals and the engineering of devices that use or produce them.

See Discrete cosine transform and Digital electronics

Digital image

A digital image is an image composed of picture elements, also known as pixels, each with finite, discrete quantities of numeric representation for its intensity or gray level that is an output from its two-dimensional functions fed as input by its spatial coordinates denoted with x, y on the x-axis and y-axis, respectively.

See Discrete cosine transform and Digital image

Digital image processing

Digital image processing is the use of a digital computer to process digital images through an algorithm.

See Discrete cosine transform and Digital image processing

Digital imaging

Digital imaging or digital image acquisition is the creation of a digital representation of the visual characteristics of an object, such as a physical scene or the interior structure of an object.

See Discrete cosine transform and Digital imaging

In mass communication, digital media is any communication media that operates in conjunction with various encoded machine-readable data formats.

See Discrete cosine transform and Digital media

Digital movie camera

A digital movie camera for digital cinematography is a motion picture camera that captures footage digitally rather than physical film, which shoots on film stock.

See Discrete cosine transform and Digital movie camera

Digital photography

Digital photography uses cameras containing arrays of electronic photodetectors interfaced to an analog-to-digital converter (ADC) to produce images focused by a lens, as opposed to an exposure on photographic film.

See Discrete cosine transform and Digital photography

Digital radio

Digital radio is the use of digital technology to transmit or receive across the radio spectrum.

See Discrete cosine transform and Digital radio

Digital Radio Mondiale

Digital Radio Mondiale (DRM; mondiale being Italian and French for "worldwide") is a set of digital audio broadcasting technologies designed to work over the bands currently used for analogue radio broadcasting including AM broadcasting—particularly shortwave—and FM broadcasting.

See Discrete cosine transform and Digital Radio Mondiale

Digital signal processing

Digital signal processing (DSP) is the use of digital processing, such as by computers or more specialized digital signal processors, to perform a wide variety of signal processing operations.

See Discrete cosine transform and Digital signal processing

Digital Signal Processing (journal)

Digital Signal Processing is a monthly peer-reviewed open access scientific journal covering all areas of signal processing. Discrete cosine transform and Digital Signal Processing (journal) are digital signal processing.

See Discrete cosine transform and Digital Signal Processing (journal)

Digital signal processor

A digital signal processor (DSP) is a specialized microprocessor chip, with its architecture optimized for the operational needs of digital signal processing. Discrete cosine transform and digital signal processor are digital signal processing.

See Discrete cosine transform and Digital signal processor

Digital television

Digital television (DTV) is the transmission of television signals using digital encoding, in contrast to the earlier analog television technology which used analog signals.

See Discrete cosine transform and Digital television

Digital terrestrial television

Digital terrestrial television (DTTV, DTT, or DTTB) is a technology for terrestrial television where television stations broadcast television content in a digital format.

See Discrete cosine transform and Digital terrestrial television

Digital video

Digital video is an electronic representation of moving visual images (video) in the form of encoded digital data.

See Discrete cosine transform and Digital video

Digital watermarking

A digital watermark is a kind of marker covertly embedded in a noise-tolerant signal such as audio, video or image data.

See Discrete cosine transform and Digital watermarking

Dirichlet boundary condition

In mathematics, the Dirichlet boundary condition is imposed on an ordinary or partial differential equation, such that the values that the solution takes along the boundary of the domain are fixed.

See Discrete cosine transform and Dirichlet boundary condition

Discrete Fourier transform

In mathematics, the discrete Fourier transform (DFT) converts a finite sequence of equally-spaced samples of a function into a same-length sequence of equally-spaced samples of the discrete-time Fourier transform (DTFT), which is a complex-valued function of frequency. Discrete cosine transform and discrete Fourier transform are digital signal processing, discrete transforms and Fourier analysis.

See Discrete cosine transform and Discrete Fourier transform

Discrete sine transform

In mathematics, the discrete sine transform (DST) is a Fourier-related transform similar to the discrete Fourier transform (DFT), but using a purely real matrix. Discrete cosine transform and discrete sine transform are discrete transforms, Fourier analysis and Indian inventions.

See Discrete cosine transform and Discrete sine transform

Discrete wavelet transform

In numerical analysis and functional analysis, a discrete wavelet transform (DWT) is any wavelet transform for which the wavelets are discretely sampled. Discrete cosine transform and discrete wavelet transform are digital signal processing and discrete transforms.

See Discrete cosine transform and Discrete wavelet transform

Dolby

Dolby Laboratories, Inc. (often shortened to Dolby Labs and known simply as Dolby) is a British-American technology corporation specializing in audio noise reduction, audio encoding/compression, spatial audio, and HDR imaging.

See Discrete cosine transform and Dolby

Dolby AC-4

Dolby AC-4 is an audio compression technology developed by Dolby Laboratories.

See Discrete cosine transform and Dolby AC-4

Dolby Digital

Dolby Digital, originally synonymous with Dolby AC-3 (see below), is the name for a family of audio compression technologies developed by Dolby Laboratories.

See Discrete cosine transform and Dolby Digital

Domain of a function

In mathematics, the domain of a function is the set of inputs accepted by the function.

See Discrete cosine transform and Domain of a function

Downsampling (signal processing)

In digital signal processing, downsampling, compression, and decimation are terms associated with the process of ''resampling'' in a multi-rate digital signal processing system. Discrete cosine transform and downsampling (signal processing) are digital signal processing.

See Discrete cosine transform and Downsampling (signal processing)

DV (video format)

DV (from Digital Video) is a family of codecs and tape formats used for storing digital video, launched in 1995 by a consortium of video camera manufacturers led by Sony and Panasonic.

See Discrete cosine transform and DV (video format)

DVB-H

DVB-H (digital video broadcasting - handheld) is one of three prevalent mobile TV formats.

See Discrete cosine transform and DVB-H

DVD

The DVD (common abbreviation for digital video disc or digital versatile disc) is a digital optical disc data storage format.

See Discrete cosine transform and DVD

Dynamic Resolution Adaptation

Dynamic Resolution Adaptation (DRA) is an audio encoding specification developed by DigiRise Technology.

See Discrete cosine transform and Dynamic Resolution Adaptation

Echo suppression and cancellation

Echo suppression and echo cancellation are methods used in telephony to improve voice quality by preventing echo from being created or removing it after it is already present.

See Discrete cosine transform and Echo suppression and cancellation

Edge detection

Edge detection includes a variety of mathematical methods that aim at identifying edges, defined as curves in a digital image at which the image brightness changes sharply or, more formally, has discontinuities.

See Discrete cosine transform and Edge detection

EE Times

EE Times (Electronic Engineering Times) is an electronics industry magazine published in the United States since 1972.

See Discrete cosine transform and EE Times

Electrocardiography

Electrocardiography is the process of producing an electrocardiogram (ECG or EKG), a recording of the heart's electrical activity through repeated cardiac cycles.

See Discrete cosine transform and Electrocardiography

Elsevier

Elsevier is a Dutch academic publishing company specializing in scientific, technical, and medical content.

See Discrete cosine transform and Elsevier

Encryption

In cryptography, encryption is the process of transforming (more specifically, encoding) information in a way that, ideally, only authorized parties can decode.

See Discrete cosine transform and Encryption

Engineering

Engineering is the practice of using natural science, mathematics, and the engineering design process to solve technical problems, increase efficiency and productivity, and improve systems.

See Discrete cosine transform and Engineering

Engineering and Technology History Wiki

The Engineering and Technology History Wiki (ETHW) is a MediaWiki-based website dedicated to the history of technology.

See Discrete cosine transform and Engineering and Technology History Wiki

Enhanced Variable Rate Codec B

Enhanced Variable Rate Codec B (EVRC-B) is a speech codec used by CDMA networks.

See Discrete cosine transform and Enhanced Variable Rate Codec B

Enhanced Voice Services

Enhanced Voice Services (EVS) is a superwideband speech audio coding standard that was developed for VoLTE and VoNR.

See Discrete cosine transform and Enhanced Voice Services

Entropy coding

In information theory, an entropy coding (or entropy encoding) is any lossless data compression method that attempts to approach the lower bound declared by Shannon's source coding theorem, which states that any lossless data compression method must have an expected code length greater than or equal to the entropy of the source. Discrete cosine transform and entropy coding are data compression.

See Discrete cosine transform and Entropy coding

Error concealment

Error concealment is a technique used in signal processing that aims to minimize the deterioration of signals caused by missing data, called packet loss.

See Discrete cosine transform and Error concealment

European Broadcasting Union

The European Broadcasting Union (EBU; Union européenne de radio-télévision, UER) is an alliance of public service media organisations whose countries are within the European Broadcasting Area or who are members of the Council of Europe.

See Discrete cosine transform and European Broadcasting Union

Even and odd functions

In mathematics, an even function is a real function such that f(-x).

See Discrete cosine transform and Even and odd functions

Event data recorder

An event data recorder (EDR), more specifically motor vehicle event data recorder (MVEDR), similar to an accident data recorder, (ADR) sometimes referred to informally as an automotive black box (by analogy with the common nickname for flight recorders), is a device installed in some automobiles to record information related to traffic collisions.

See Discrete cosine transform and Event data recorder

Exponential function

The exponential function is a mathematical function denoted by f(x).

See Discrete cosine transform and Exponential function

Face detection

Face detection is a computer technology being used in a variety of applications that identifies human faces in digital images.

See Discrete cosine transform and Face detection

FaceTime

FaceTime is a proprietary videotelephony product developed by Apple Inc. FaceTime is available on supported iOS mobile devices running iOS 4 and later and Mac computers that run and later.

See Discrete cosine transform and FaceTime

Facial recognition system

A facial recognition system is a technology potentially capable of matching a human face from a digital image or a video frame against a database of faces.

See Discrete cosine transform and Facial recognition system

Fast Fourier transform

A fast Fourier transform (FFT) is an algorithm that computes the Discrete Fourier Transform (DFT) of a sequence, or its inverse (IDFT). Discrete cosine transform and fast Fourier transform are digital signal processing and discrete transforms.

See Discrete cosine transform and Fast Fourier transform

Feature engineering

Feature engineering is a preprocessing step in supervised machine learning and statistical modeling which transforms raw data into a more effective set of inputs.

See Discrete cosine transform and Feature engineering

FFTPACK

FFTPACK is a package of Fortran subroutines for the fast Fourier transform.

See Discrete cosine transform and FFTPACK

FFTW

The Fastest Fourier Transform in the West (FFTW) is a software library for computing discrete Fourier transforms (DFTs) developed by Matteo Frigo and Steven G. Johnson at the Massachusetts Institute of Technology.

See Discrete cosine transform and FFTW

Film

A film (British English) also called a movie (American English), motion picture, moving picture, picture, photoplay or (slang) flick is a work of visual art that simulates experiences and otherwise communicates ideas, stories, perceptions, feelings, beauty, or atmosphere through the use of moving images.

See Discrete cosine transform and Film

Film editing

Film editing is both a creative and a technical part of the post-production process of filmmaking.

See Discrete cosine transform and Film editing

Filter (signal processing)

In signal processing, a filter is a device or process that removes some unwanted components or features from a signal.

See Discrete cosine transform and Filter (signal processing)

Fingerprint

A fingerprint is an impression left by the friction ridges of a human finger.

See Discrete cosine transform and Fingerprint

Focus (optics)

In geometrical optics, a focus, also called an image point, is a point where light rays originating from a point on the object converge.

See Discrete cosine transform and Focus (optics)

Fourier series

A Fourier series is an expansion of a periodic function into a sum of trigonometric functions. Discrete cosine transform and Fourier series are Fourier analysis.

See Discrete cosine transform and Fourier series

Fourier sine and cosine series

In mathematics, particularly the field of calculus and Fourier analysis, the Fourier sine and cosine series are two mathematical series named after Joseph Fourier.

See Discrete cosine transform and Fourier sine and cosine series

Foveated imaging

16:1 compression. Foveated image with fixation point at Stephen F. Austin statue. Foveated imaging is a digital image processing technique in which the image resolution, or amount of detail, varies across the image according to one or more "fixation points".

See Discrete cosine transform and Foveated imaging

Fraunhofer Society

The Fraunhofer Society (Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.|lit.

See Discrete cosine transform and Fraunhofer Society

Frequency

Frequency (symbol f), most often measured in hertz (symbol: Hz), is the number of occurrences of a repeating event per unit of time.

See Discrete cosine transform and Frequency

Function (mathematics)

In mathematics, a function from a set to a set assigns to each element of exactly one element of.

See Discrete cosine transform and Function (mathematics)

G.718

G.718 is an ITU-T Recommendation embedded scalable speech and audio codec providing high quality narrowband (250 Hz to 3.5 kHz) speech over the lower bit rates and high quality wideband (50 Hz to 7 kHz) speech over the complete range of bit rates.

See Discrete cosine transform and G.718

G.719

G.719 is an ITU-T standard audio coding format providing high quality, moderate bit rate (32 to 128 kbit/s) wideband (20 Hz - 20 kHz audio bandwidth, 48 kHz audio sample rate) audio coding at low computational load.

See Discrete cosine transform and G.719

G.722

G.722 is an ITU-T standard 7 kHz wideband audio codec operating at 48, 56 and 64 kbit/s.

See Discrete cosine transform and G.722

G.722.1

G.722.1 is a licensed royalty-free ITU-T standard audio codec providing high quality, moderate bit rate (24 and 32 kbit/s) wideband (50 Hz – 7 kHz audio bandwidth, 16 ksps (kilo-samples per second) audio coding. It is a partial implementation of Siren 7 audio coding format (which offers bit rates 16, 24, 32 kbit/s) developed by PictureTel Corp.

See Discrete cosine transform and G.722.1

G.729

G.729 is a royalty-free narrow-band vocoder-based audio data compression algorithm using a frame length of 10 milliseconds.

See Discrete cosine transform and G.729

G.729.1

G.729.1 is an 8-32 kbit/s embedded speech and audio codec providing bitstream interoperability with G.729, G.729 Annex A and G.729 Annex B. Its official name is G.729-based embedded variable bit rate codec: An 8-32 kbit/s scalable wideband coder bitstream interoperable with G.729.

See Discrete cosine transform and G.729.1

Geophysics

Geophysics is a subject of natural science concerned with the physical processes and physical properties of the Earth and its surrounding space environment, and the use of quantitative methods for their analysis.

See Discrete cosine transform and Geophysics

GIF

The Graphics Interchange Format (GIF; or) is a bitmap image format that was developed by a team at the online services provider CompuServe led by American computer scientist Steve Wilhite and released on June 15, 1987.

See Discrete cosine transform and GIF

Glitch art

Glitch art is an art movement centering around the practice of using digital or analog errors, more so glitches, for aesthetic purposes by either corrupting digital data or physically manipulating electronic devices.

See Discrete cosine transform and Glitch art

GNU General Public License

The GNU General Public License (GNU GPL or simply GPL) is a series of widely used free software licenses, or copyleft, that guarantee end users the four freedoms to run, study, share, and modify the software.

See Discrete cosine transform and GNU General Public License

Google

Google LLC is an American multinational corporation and technology company focusing on online advertising, search engine technology, cloud computing, computer software, quantum computing, e-commerce, consumer electronics, and artificial intelligence (AI).

See Discrete cosine transform and Google

H.261

H.261 is an ITU-T video compression standard, first ratified in November 1988. Discrete cosine transform and H.261 are H.26x.

See Discrete cosine transform and H.261

H.262/MPEG-2 Part 2

H.262 or MPEG-2 Part 2 (formally known as ITU-T Recommendation H.262 and ISO/IEC 13818-2, also known as MPEG-2 Video) is a video coding format standardised and jointly maintained by ITU-T Study Group 16 Video Coding Experts Group (VCEG) and ISO/IEC Moving Picture Experts Group (MPEG), and developed with the involvement of many companies. Discrete cosine transform and H.262/MPEG-2 Part 2 are H.26x.

See Discrete cosine transform and H.262/MPEG-2 Part 2

H.263

H.263 is a video compression standard originally designed as a low-bit-rate compressed format for videotelephony. Discrete cosine transform and H.263 are H.26x.

See Discrete cosine transform and H.263

H.320

H.320 or Narrow-band visual telephone systems and terminal equipment is an umbrella Recommendation by the ITU-T for running multimedia (audio/video/data) over ISDN based networks.

See Discrete cosine transform and H.320

HD Radio

HD Radio (HDR) is a trademark for an in-band on-channel (IBOC) digital radio broadcast technology.

See Discrete cosine transform and HD Radio

Health technology

Health technology is defined by the World Health Organization as the "application of organized knowledge and skills in the form of devices, medicines, vaccines, procedures, and systems developed to solve a health problem and improve quality of lives".

See Discrete cosine transform and Health technology

Hewlett-Packard Journal

Hewlett-Packard Journal was a magazine published by Hewlett-Packard (HP) between 1949–1998.

See Discrete cosine transform and Hewlett-Packard Journal

High dynamic range

High dynamic range (HDR), also known as wide dynamic range, extended dynamic range, or expanded dynamic range, is a signal with a higher dynamic range than usual.

See Discrete cosine transform and High dynamic range

High Efficiency Image File Format

High Efficiency Image File Format (HEIF) is a container format for storing individual digital images and image sequences. Discrete cosine transform and High Efficiency Image File Format are image compression.

See Discrete cosine transform and High Efficiency Image File Format

High Efficiency Video Coding

High Efficiency Video Coding (HEVC), also known as H.265 and MPEG-H Part 2, is a video compression standard designed as part of the MPEG-H project as a successor to the widely used Advanced Video Coding (AVC, H.264, or MPEG-4 Part 10). Discrete cosine transform and High Efficiency Video Coding are H.26x, lossy compression algorithms and video compression.

See Discrete cosine transform and High Efficiency Video Coding

High-Definition Coding

HDC (Hybrid Digital Coding or High-Definition Coding) with SBR (spectral band replication) is a proprietary lossy audio compression codec developed by iBiquity for use with HD Radio.

See Discrete cosine transform and High-Definition Coding

High-definition television

High-definition television (HDTV) describes a television or video system which provides a substantially higher image resolution than the previous generation of technologies.

See Discrete cosine transform and High-definition television

High-definition video

High-definition video (HD video) is video of higher resolution and quality than standard-definition.

See Discrete cosine transform and High-definition video

High-Efficiency Advanced Audio Coding

High-Efficiency Advanced Audio Coding (HE-AAC) is an audio coding format for lossy data compression of digital audio defined as an MPEG-4 Audio profile in ISO/IEC 14496–3.

See Discrete cosine transform and High-Efficiency Advanced Audio Coding

House of Commons Library

The House of Commons Library is the library and information resource of the lower house of the British Parliament.

See Discrete cosine transform and House of Commons Library

HTML5

HTML5 (Hypertext Markup Language 5) is a markup language used for structuring and presenting hypertext documents on the World Wide Web.

See Discrete cosine transform and HTML5

IEEE Transactions on Communications

IEEE Transactions on Communications is a monthly peer-reviewed scientific journal published by the IEEE Communications Society that focuses on all aspects of telecommunication technology, including telephone, telegraphy, facsimile, and point-to-point television by electromagnetic propagation.

See Discrete cosine transform and IEEE Transactions on Communications

IEEE Transactions on Computers

IEEE Transactions on Computers is a monthly peer-reviewed scientific journal covering all aspects of computer design.

See Discrete cosine transform and IEEE Transactions on Computers

Image

An image is a visual representation.

See Discrete cosine transform and Image

Image analysis

Image analysis or imagery analysis is the extraction of meaningful information from images; mainly from digital images by means of digital image processing techniques.

See Discrete cosine transform and Image analysis

Image compression

Image compression is a type of data compression applied to digital images, to reduce their cost for storage or transmission. Discrete cosine transform and image compression are data compression.

See Discrete cosine transform and Image compression

Image editing

Image editing encompasses the processes of altering images, whether they are digital photographs, traditional photo-chemical photographs, or illustrations.

See Discrete cosine transform and Image editing

Image file format

An image file format is a file format for a digital image.

See Discrete cosine transform and Image file format

Image fusion

The image fusion process is defined as gathering all the important information from multiple images, and their inclusion into fewer images, usually a single one.

See Discrete cosine transform and Image fusion

Image noise

Image noise is random variation of brightness or color information in images, and is usually an aspect of electronic noise.

See Discrete cosine transform and Image noise

Image quality

Image quality can refer to the level of accuracy with which different imaging systems capture, process, store, compress, transmit and display the signals that form an image.

See Discrete cosine transform and Image quality

Image restoration by artificial intelligence

Image restoration is the operation of taking a corrupt/noisy image and estimating the clean, original image.

See Discrete cosine transform and Image restoration by artificial intelligence

Image segmentation

In digital image processing and computer vision, image segmentation is the process of partitioning a digital image into multiple image segments, also known as image regions or image objects (sets of pixels).

See Discrete cosine transform and Image segmentation

Image texture

An image texture is the small-scale structure perceived on an image, based on the spatial arrangement of color or intensities.

See Discrete cosine transform and Image texture

Inpainting

Inpainting is a conservation process where damaged, deteriorated, or missing parts of an artwork are filled in to present a complete image.

See Discrete cosine transform and Inpainting

Institute of Electrical and Electronics Engineers

The Institute of Electrical and Electronics Engineers (IEEE) is an American 501(c)(3) professional association for electronics engineering, electrical engineering, and other related disciplines.

See Discrete cosine transform and Institute of Electrical and Electronics Engineers

Institution of Engineering and Technology

The Institution of Engineering and Technology (IET) is a multidisciplinary professional engineering institution.

See Discrete cosine transform and Institution of Engineering and Technology

Integer

An integer is the number zero (0), a positive natural number (1, 2, 3,...), or the negation of a positive natural number (−1, −2, −3,...). The negations or additive inverses of the positive natural numbers are referred to as negative integers.

See Discrete cosine transform and Integer

Integrated circuit

An integrated circuit (IC), also known as a microchip, computer chip, or simply chip, is a small electronic device made up of multiple interconnected electronic components such as transistors, resistors, and capacitors.

See Discrete cosine transform and Integrated circuit

Inter frame

An inter frame is a frame in a video compression stream which is expressed in terms of one or more neighboring frames.

See Discrete cosine transform and Inter frame

Internet

The Internet (or internet) is the global system of interconnected computer networks that uses the Internet protocol suite (TCP/IP) to communicate between networks and devices.

See Discrete cosine transform and Internet

Internet video

Internet video (also known as online video) is digital video that is distributed over the internet.

See Discrete cosine transform and Internet video

Interpolation

In the mathematical field of numerical analysis, interpolation is a type of estimation, a method of constructing (finding) new data points based on the range of a discrete set of known data points.

See Discrete cosine transform and Interpolation

Intra-frame coding

Intra-frame coding is a data compression technique used within a video frame, enabling smaller file sizes and lower bitrates, with little or no loss in quality. Discrete cosine transform and Intra-frame coding are video compression.

See Discrete cosine transform and Intra-frame coding

IOS

iOS (formerly iPhone OS) is a mobile operating system developed by Apple exclusively for its smartphones.

See Discrete cosine transform and IOS

ISDN

Integrated Services Digital Network (ISDN) is a set of communication standards for simultaneous digital transmission of voice, video, data, and other network services over the digitalised circuits of the public switched telephone network.

See Discrete cosine transform and ISDN

ISO/IEC JTC 1

ISO/IEC JTC 1, entitled "Information technology", is a joint technical committee (JTC) of the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC).

See Discrete cosine transform and ISO/IEC JTC 1

Iterative reconstruction

Iterative reconstruction refers to iterative algorithms used to reconstruct 2D and 3D images in certain imaging techniques.

See Discrete cosine transform and Iterative reconstruction

ITU-T

The International Telecommunication Union Telecommunication Standardization Sector (ITU-T) is one of the three Sectors (branches) of the International Telecommunication Union (ITU).

See Discrete cosine transform and ITU-T

ITunes

iTunes was a media player, media library, mobile device management utility developed by Apple.

See Discrete cosine transform and ITunes

John Makhoul

John Makhoul is a Lebanese-American computer scientist who works in the field of speech and language processing.

See Discrete cosine transform and John Makhoul

Joint Photographic Experts Group

The Joint Photographic Experts Group (JPEG) is the joint committee between ISO/IEC JTC 1/SC 29 and ITU-T Study Group 16 that created and maintains the JPEG, JPEG 2000, JPEG XR, JPEG XT, JPEG XS, JPEG XL, and related digital image standards. Discrete cosine transform and joint Photographic Experts Group are JPEG.

See Discrete cosine transform and Joint Photographic Experts Group

Journal of Electronic Imaging

The Journal of Electronic Imaging is a peer-reviewed scientific journal published quarterly by SPIE and the Society for Imaging Science and Technology.

See Discrete cosine transform and Journal of Electronic Imaging

JPEG

JPEG (short for Joint Photographic Experts Group) is a commonly used method of lossy compression for digital images, particularly for those images produced by digital photography. Discrete cosine transform and JPEG are image compression and lossy compression algorithms.

See Discrete cosine transform and JPEG

JPEG XL

JPEG XL is a royalty-free raster-graphics file format that supports both lossy and lossless compression. Discrete cosine transform and JPEG XL are image compression and JPEG.

See Discrete cosine transform and JPEG XL

JPEG XR

JPEG XR (JPEG extended range) is an image compression standard for continuous tone photographic images, based on the HD Photo (formerly Windows Media Photo) specifications that Microsoft originally developed and patented. Discrete cosine transform and JPEG XR are image compression, JPEG and lossy compression algorithms.

See Discrete cosine transform and JPEG XR

Just-noticeable difference

In the branch of experimental psychology focused on sense, sensation, and perception, which is called psychophysics, a just-noticeable difference or JND is the amount something must be changed in order for a difference to be noticeable, detectable at least half the time.

See Discrete cosine transform and Just-noticeable difference

K. R. Rao

Kamisetty Ramamohan Rao (19312021) was an Indian-American electrical engineer.

See Discrete cosine transform and K. R. Rao

Kansas State University

Kansas State University (KSU, Kansas State, or K-State) is a public land-grant research university with its main campus in Manhattan, Kansas.

See Discrete cosine transform and Kansas State University

Kosambi–Karhunen–Loève theorem

In the theory of stochastic processes, the Karhunen–Loève theorem (named after Kari Karhunen and Michel Loève), also known as the Kosambi–Karhunen–Loève theorem (after Damodar Dharmananda Kosambi) states that a stochastic process can be represented as an infinite linear combination of orthogonal functions, analogous to a Fourier series representation of a function on a bounded interval.

See Discrete cosine transform and Kosambi–Karhunen–Loève theorem

Library of Congress

The Library of Congress (LOC) is a research library in Washington, D.C. that serves as the library and research service of the U.S. Congress and the de facto national library of the United States.

See Discrete cosine transform and Library of Congress

Linear combination

In mathematics, a linear combination is an expression constructed from a set of terms by multiplying each term by a constant and adding the results (e.g. a linear combination of x and y would be any expression of the form ax + by, where a and b are constants).

See Discrete cosine transform and Linear combination

Linearity

In mathematics, the term linear is used in two distinct senses for two different properties.

See Discrete cosine transform and Linearity

This is a list of linear transformations of functions related to Fourier analysis. Discrete cosine transform and list of Fourier-related transforms are Fourier analysis.

See Discrete cosine transform and List of Fourier-related transforms

Lossless compression

Lossless compression is a class of data compression that allows the original data to be perfectly reconstructed from the compressed data with no loss of information. Discrete cosine transform and Lossless compression are data compression.

See Discrete cosine transform and Lossless compression

Lossy compression

In information technology, lossy compression or irreversible compression is the class of data compression methods that uses inexact approximations and partial data discarding to represent the content. Discrete cosine transform and lossy compression are data compression and lossy compression algorithms.

See Discrete cosine transform and Lossy compression

Luminance

Luminance is a photometric measure of the luminous intensity per unit area of light travelling in a given direction.

See Discrete cosine transform and Luminance

Markov chain

A Markov chain or Markov process is a stochastic model describing a sequence of possible events in which the probability of each event depends only on the state attained in the previous event.

See Discrete cosine transform and Markov chain

MATLAB

MATLAB (an abbreviation of "MATrix LABoratory") is a proprietary multi-paradigm programming language and numeric computing environment developed by MathWorks.

See Discrete cosine transform and MATLAB

McGraw Hill Education

McGraw Hill is an American publishing company for educational content, software, and services for pre-K through postgraduate education.

See Discrete cosine transform and McGraw Hill Education

Medical imaging

Medical imaging is the technique and process of imaging the interior of a body for clinical analysis and medical intervention, as well as visual representation of the function of some organs or tissues (physiology).

See Discrete cosine transform and Medical imaging

Medium (website)

Medium is an American online publishing platform developed by Evan Williams and launched in August 2012.

See Discrete cosine transform and Medium (website)

Microsoft Windows

Microsoft Windows is a product line of proprietary graphical operating systems developed and marketed by Microsoft.

See Discrete cosine transform and Microsoft Windows

MiniDisc

MiniDisc (MD) is an erasable magneto-optical disc-based data storage format offering a capacity of 60, 74, and later, 80 minutes of digitized audio.

See Discrete cosine transform and MiniDisc

Mobile device

A mobile device or handheld computer is a computer small enough to hold and operate in hand.

See Discrete cosine transform and Mobile device

Mobile phone

A mobile phone or cell phone is a portable telephone that can make and receive calls over a radio frequency link while the user is moving within a telephone service area, as opposed to a fixed-location phone (landline phone).

See Discrete cosine transform and Mobile phone

Mobile telephony

Mobile telephony is the provision of telephone services to mobile phones rather than fixed-location phones (landline phones).

See Discrete cosine transform and Mobile telephony

Modified discrete cosine transform

The modified discrete cosine transform (MDCT) is a transform based on the type-IV discrete cosine transform (DCT-IV), with the additional property of being lapped: it is designed to be performed on consecutive blocks of a larger dataset, where subsequent blocks are overlapped so that the last half of one block coincides with the first half of the next block. Discrete cosine transform and modified discrete cosine transform are data compression, discrete transforms and Fourier analysis.

See Discrete cosine transform and Modified discrete cosine transform

Motion analysis

Motion analysis is used in computer vision, image processing, high-speed photography and machine vision that studies methods and applications in which two or more consecutive images from an image sequences, e.g., produced by a video camera or high-speed camera, are processed to produce information based on the apparent motion in the images.

See Discrete cosine transform and Motion analysis

Motion compensation

Motion compensation in computing is an algorithmic technique used to predict a frame in a video given the previous and/or future frames by accounting for motion of the camera and/or objects in the video. Discrete cosine transform and motion compensation are data compression, H.26x and video compression.

See Discrete cosine transform and Motion compensation

Motion estimation

In computer vision and image processing, motion estimation is the process of determining motion vectors that describe the transformation from one 2D image to another; usually from adjacent frames in a video sequence.

See Discrete cosine transform and Motion estimation

Motion JPEG

Motion JPEG (M-JPEG or MJPEG) is a video compression format in which each video frame or interlaced field of a digital video sequence is compressed separately as a JPEG image. Discrete cosine transform and Motion JPEG are JPEG.

See Discrete cosine transform and Motion JPEG

Moving object detection

Moving object detection is a technique used in computer vision and image processing.

See Discrete cosine transform and Moving object detection

Moving Picture Experts Group

The Moving Picture Experts Group (MPEG) is an alliance of working groups established jointly by ISO and IEC that sets standards for media coding, including compression coding of audio, video, graphics, and genomic data; and transmission and file formats for various applications.

See Discrete cosine transform and Moving Picture Experts Group

MP3

MP3 (formally MPEG-1 Audio Layer III or MPEG-2 Audio Layer III) is a coding format for digital audio developed largely by the Fraunhofer Society in Germany under the lead of Karlheinz Brandenburg, with support from other digital scientists in other countries. Discrete cosine transform and MP3 are data compression and lossy compression algorithms.

See Discrete cosine transform and MP3

MP4 file format

MPEG-4 Part 14, or MP4, is a digital multimedia container format most commonly used to store video and audio, but it can also be used to store other data such as subtitles and still images.

See Discrete cosine transform and MP4 file format

MPEG-1

MPEG-1 is a standard for lossy compression of video and audio. Discrete cosine transform and MPEG-1 are data compression.

See Discrete cosine transform and MPEG-1

MPEG-4

MPEG-4 is a group of international standards for the compression of digital audio and visual data, multimedia systems, and file storage formats.

See Discrete cosine transform and MPEG-4

MPEG-4 Part 2

MPEG-4 Part 2, MPEG-4 Visual (formally ISO/IEC 14496-2) is a video compression format developed by the Moving Picture Experts Group (MPEG).

See Discrete cosine transform and MPEG-4 Part 2

MPEG-H 3D Audio

MPEG-H 3D Audio, specified as ISO/IEC 23008-3 (MPEG-H Part 3), is an audio coding standard developed by the ISO/IEC Moving Picture Experts Group (MPEG) to support coding audio as audio channels, audio objects, or higher order ambisonics (HOA).

See Discrete cosine transform and MPEG-H 3D Audio

Multimedia is a form of communication that uses a combination of different content forms, such as writing, audio, images, animations, or video, into a single interactive presentation, in contrast to traditional mass media, such as printed material or audio recordings, which feature little to no interaction between users.

See Discrete cosine transform and Multimedia

Multiplexing

In telecommunications and computer networking, multiplexing (sometimes contracted to muxing) is a method by which multiple analog or digital signals are combined into one signal over a shared medium.

See Discrete cosine transform and Multiplexing

Multiview Video Coding

Multi View Video Coding (MVC, also known as MVC 3D) is a stereoscopic video coding standard for video compression that allows for encoding of video sequences captured simultaneously from multiple camera angles in a single video stream. Discrete cosine transform and Multiview Video Coding are video compression.

See Discrete cosine transform and Multiview Video Coding

Nasir Ahmed (engineer)

Nasir Ahmed (born 1940) is an Indian-American electrical engineer and computer scientist.

See Discrete cosine transform and Nasir Ahmed (engineer)

National Science Foundation

The U.S. National Science Foundation (NSF) is an independent agency of the United States federal government that supports fundamental research and education in all the non-medical fields of science and engineering.

See Discrete cosine transform and National Science Foundation

Netflix

Netflix is an American subscription video on-demand over-the-top streaming service.

See Discrete cosine transform and Netflix

Neumann boundary condition

In mathematics, the Neumann (or second-type) boundary condition is a type of boundary condition, named after Carl Neumann.

See Discrete cosine transform and Neumann boundary condition

Nokia

Nokia Corporation (natively Nokia Oyj in Finnish and Nokia Abp in Swedish, referred to as Nokia) is a Finnish multinational telecommunications, information technology, and consumer electronics corporation, originally established as a pulp mill in 1865.

See Discrete cosine transform and Nokia

Non-linear editing

Non-linear editing is a form of offline editing for audio, video, and image editing.

See Discrete cosine transform and Non-linear editing

Ogg

Ogg is a free, open container format maintained by the Xiph.Org Foundation.

See Discrete cosine transform and Ogg

Open XML Paper Specification

Open XML Paper Specification (also referred to as OpenXPS) is an open specification for a page description language and a fixed-document format.

See Discrete cosine transform and Open XML Paper Specification

Opus (audio format)

Opus is a lossy audio coding format developed by the Xiph.Org Foundation and standardized by the Internet Engineering Task Force, designed to efficiently code speech and general audio in a single format, while remaining low-latency enough for real-time interactive communication and low-complexity enough for low-end embedded processors. Discrete cosine transform and Opus (audio format) are lossy compression algorithms.

See Discrete cosine transform and Opus (audio format)

Orthogonal matrix

In linear algebra, an orthogonal matrix, or orthonormal matrix, is a real square matrix whose columns and rows are orthonormal vectors.

See Discrete cosine transform and Orthogonal matrix

Palm print

A palm print is an image acquired of the palm region of the hand.

See Discrete cosine transform and Palm print

Partial differential equation

In mathematics, a partial differential equation (PDE) is an equation which computes a function between various partial derivatives of a multivariable function.

See Discrete cosine transform and Partial differential equation

Pattern recognition

Pattern recognition is the task of assigning a class to an observation based on patterns extracted from data.

See Discrete cosine transform and Pattern recognition

PCMag

PC Magazine (shortened as PCMag) is an American computer magazine published by Ziff Davis.

See Discrete cosine transform and PCMag

Perceptual Audio Coder

Perceptual Audio Coder (PAC) is a lossy audio compression algorithm.

See Discrete cosine transform and Perceptual Audio Coder

Periodic function

A periodic function or cyclic function, also called a periodic waveform (or simply periodic wave), is a function that repeats its values at regular intervals or periods. Discrete cosine transform and periodic function are Fourier analysis.

See Discrete cosine transform and Periodic function

Phoneme

In linguistics and specifically phonology, a phoneme is any set of similar phones (speech sounds) that is perceptually regarded by the speakers of a language as a single distinct unit, a single basic sound, which helps distinguish one word from another.

See Discrete cosine transform and Phoneme

Photo recovery

Photo recovery is the process of salvaging digital photographs from damaged, failed, corrupted, or inaccessible secondary storage media when it cannot be accessed normally.

See Discrete cosine transform and Photo recovery

Pixel

In digital imaging, a pixel (abbreviated px), pel, or picture element is the smallest addressable element in a raster image, or the smallest addressable element in a dot matrix display device.

See Discrete cosine transform and Pixel

PlayStation 4

The PlayStation 4 (PS4) is a home video game console developed by Sony Interactive Entertainment.

See Discrete cosine transform and PlayStation 4

A portable media player (PMP) or digital audio player (DAP) is a portable consumer electronics device capable of storing and playing digital media such as audio, images, and video files.

See Discrete cosine transform and Portable media player

Power of two

A power of two is a number of the form where is an integer, that is, the result of exponentiation with number two as the base and integer as the exponent.

See Discrete cosine transform and Power of two

Public switched telephone network

The public switched telephone network (PSTN) is the aggregate of the world's telephone networks that are operated by national, regional, or local telephony operators.

See Discrete cosine transform and Public switched telephone network

Quantization (signal processing)

Quantization, in mathematics and digital signal processing, is the process of mapping input values from a large set (often a continuous set) to output values in a (countable) smaller set, often with a finite number of elements. Discrete cosine transform and Quantization (signal processing) are data compression and digital signal processing.

See Discrete cosine transform and Quantization (signal processing)

QuickTime

QuickTime is a discontinued extensible multimedia architecture created by Apple, which supports playing, streaming, encoding, and transcoding a variety of digital media formats.

See Discrete cosine transform and QuickTime

Radio broadcasting

Radio broadcasting is the broadcasting of audio (sound), sometimes with related metadata, by radio waves to radio receivers belonging to a public audience.

See Discrete cosine transform and Radio broadcasting

Radio frequency

Radio frequency (RF) is the oscillation rate of an alternating electric current or voltage or of a magnetic, electric or electromagnetic field or mechanical system in the frequency range from around to around.

See Discrete cosine transform and Radio frequency

Radio-frequency engineering

Radio-frequency (RF) engineering is a subset of electrical engineering involving the application of transmission line, waveguide, antenna, radar, and electromagnetic field principles to the design and application of devices that produce or use signals within the radio band, the frequency range of about 20 kHz up to 300 GHz.

See Discrete cosine transform and Radio-frequency engineering

Rate of convergence

In numerical analysis, the order of convergence and the rate of convergence of a convergent sequence are quantities that represent how quickly the sequence approaches its limit.

See Discrete cosine transform and Rate of convergence

Real number

In mathematics, a real number is a number that can be used to measure a continuous one-dimensional quantity such as a distance, duration or temperature.

See Discrete cosine transform and Real number

RealAudio

RealAudio, also spelled Real Audio, is a proprietary audio format developed by RealNetworks and first released in April 1995.

See Discrete cosine transform and RealAudio

Region of interest

A region of interest (often abbreviated ROI) is a sample within a data set identified for a particular purpose.

See Discrete cosine transform and Region of interest

RGB color model

The RGB color model is an additive color model in which the red, green and blue primary colors of light are added together in various ways to reproduce a broad array of colors.

See Discrete cosine transform and RGB color model

Rosa Menkman

Rosa Menkman (born 1983) is a Dutch art theorist, curator, and visual artist specialising in glitch art and resolution theory.

See Discrete cosine transform and Rosa Menkman

Sensor

A sensor is a device that produces an output signal for the purpose of detecting a physical phenomenon.

See Discrete cosine transform and Sensor

Sensor array

A sensor array is a group of sensors, usually deployed in a certain geometry pattern, used for collecting and processing electromagnetic or acoustic signals.

See Discrete cosine transform and Sensor array

Signal

Signal refers to both the process and the result of transmission of data over some media accomplished by embedding some variation. Discrete cosine transform and Signal are digital signal processing.

See Discrete cosine transform and Signal

Signal processing

Signal processing is an electrical engineering subfield that focuses on analyzing, modifying and synthesizing signals, such as sound, images, potential fields, seismic signals, altimetry processing, and scientific measurements.

See Discrete cosine transform and Signal processing

Signal-to-noise ratio

Signal-to-noise ratio (SNR or S/N) is a measure used in science and engineering that compares the level of a desired signal to the level of background noise.

See Discrete cosine transform and Signal-to-noise ratio

Sine and cosine

In mathematics, sine and cosine are trigonometric functions of an angle.

See Discrete cosine transform and Sine and cosine

Sine and cosine transforms

In mathematics, the Fourier sine and cosine transforms are forms of the Fourier transform that do not use complex numbers or require negative frequency. Discrete cosine transform and sine and cosine transforms are Fourier analysis.

See Discrete cosine transform and Sine and cosine transforms

Sine wave

A sine wave, sinusoidal wave, or sinusoid (symbol: ∿) is a periodic wave whose waveform (shape) is the trigonometric sine function.

See Discrete cosine transform and Sine wave

Siren (codec)

Siren is a family of patented, transform-based, wideband audio coding formats and their audio codec implementations developed and licensed by PictureTel Corporation (acquired by Polycom, Inc. in 2001).

See Discrete cosine transform and Siren (codec)

Slope

In mathematics, the slope or gradient of a line is a number that describes the direction and steepness of the line.

See Discrete cosine transform and Slope

Smartphone

A smartphone, often simply called a phone, is a mobile device that combines the functionality of a traditional mobile phone with advanced computing capabilities.

See Discrete cosine transform and Smartphone

Social media are interactive technologies that facilitate the creation, sharing and aggregation of content (such as ideas, interests, and other forms of expression) amongst virtual communities and networks.

See Discrete cosine transform and Social media

Software

Software consists of computer programs that instruct the execution of a computer.

See Discrete cosine transform and Software

Spacetime

In physics, spacetime, also called the space-time continuum, is a mathematical model that fuses the three dimensions of space and the one dimension of time into a single four-dimensional continuum.

See Discrete cosine transform and Spacetime

Sparse approximation

Sparse approximation (also known as sparse representation) theory deals with sparse solutions for systems of linear equations.

See Discrete cosine transform and Sparse approximation

Spectral method

Spectral methods are a class of techniques used in applied mathematics and scientific computing to numerically solve certain differential equations.

See Discrete cosine transform and Spectral method

Speech coding

Speech coding is an application of data compression to digital audio signals containing speech. Discrete cosine transform and speech coding are data compression.

See Discrete cosine transform and Speech coding

Speech processing

Speech processing is the study of speech signals and the processing methods of signals. Discrete cosine transform and speech processing are digital signal processing.

See Discrete cosine transform and Speech processing

Speech recognition

Speech recognition is an interdisciplinary subfield of computer science and computational linguistics that develops methodologies and technologies that enable the recognition and translation of spoken language into text by computers. Discrete cosine transform and Speech recognition are digital signal processing.

See Discrete cosine transform and Speech recognition

Split-radix FFT algorithm

The split-radix FFT is a fast Fourier transform (FFT) algorithm for computing the discrete Fourier transform (DFT), and was first described in an initially little-appreciated paper by R. Yavne (1968) and subsequently rediscovered simultaneously by various authors in 1984.

See Discrete cosine transform and Split-radix FFT algorithm

Spotify

Spotify is a Swedish audio streaming and media service provider founded on 23 April 2006 by Daniel Ek and Martin Lorentzon.

See Discrete cosine transform and Spotify

Springer Science+Business Media, commonly known as Springer, is a German multinational publishing company of books, e-books and peer-reviewed journals in science, humanities, technical and medical (STM) publishing.

See Discrete cosine transform and Springer Science+Business Media

Square matrix

In mathematics, a square matrix is a matrix with the same number of rows and columns.

See Discrete cosine transform and Square matrix

Standard-definition television

Standard-definition television (SDTV; also standard definition or SD) is a television system that uses a resolution that is not considered to be either high or enhanced definition.

See Discrete cosine transform and Standard-definition television

Steganography

Steganography is the practice of representing information within another message or physical object, in such a manner that the presence of the information is not evident to human inspection.

See Discrete cosine transform and Steganography

Stereoscopic video coding

3D video coding is one of the processing stages required to manifest stereoscopic content into a home.

See Discrete cosine transform and Stereoscopic video coding

Steven G. Johnson

Steven Glenn Johnson (born 1973) is an American mathematician known for being a co-creator of the FFTW library for software-based fast Fourier transforms and for his work on photonic crystals.

See Discrete cosine transform and Steven G. Johnson

Streaming media refers to multimedia for playback using an offline or online media player that is delivered through a network.

See Discrete cosine transform and Streaming media

Streaming television

Streaming television is the digital distribution of television content, such as television series and films, streamed over the Internet.

See Discrete cosine transform and Streaming television

Surface acoustic wave sensor

Surface acoustic wave sensors are a class of microelectromechanical systems (MEMS) which rely on the modulation of surface acoustic waves to sense a physical phenomenon.

See Discrete cosine transform and Surface acoustic wave sensor

Surround sound

Surround sound is a technique for enriching the fidelity and depth of sound reproduction by using multiple audio channels from speakers that surround the listener (surround channels).

See Discrete cosine transform and Surround sound

Surveillance

Surveillance is the monitoring of behavior, many activities, or information for the purpose of information gathering, influencing, managing, or directing.

See Discrete cosine transform and Surveillance

Taylor & Francis

Taylor & Francis Group is an international company originating in England that publishes books and academic journals.

See Discrete cosine transform and Taylor & Francis

Telecommunications

Telecommunication, often used in its plural form or abbreviated as telecom, is the transmission of information with an immediacy comparable to face-to-face communication.

See Discrete cosine transform and Telecommunications

Teleconference

A teleconference or telecon is a live exchange of information among several people remote from one another but linked by a telecommunications system.

See Discrete cosine transform and Teleconference

Telephony

Telephony is the field of technology involving the development, application, and deployment of telecommunication services for the purpose of electronic transmission of voice, fax, or data, between distant parties.

See Discrete cosine transform and Telephony

The Atlantic

The Atlantic is an American magazine and multi-platform publisher.

See Discrete cosine transform and The Atlantic

The Register

The Register is a British technology news website co-founded in 1994 by Mike Magee and John Lettice.

See Discrete cosine transform and The Register

Theora

Theora is a free lossy video compression format.

See Discrete cosine transform and Theora

Thomas Ruff

Thomas Ruff (born 10 February 1958) is a German photographer who lives and works in Düsseldorf, Germany.

See Discrete cosine transform and Thomas Ruff

Thor (video codec)

Thor is a royalty-free video codec under development by Cisco Systems.

See Discrete cosine transform and Thor (video codec)

Transform coding

Transform coding is a type of data compression for "natural" data like audio signals or photographic images. Discrete cosine transform and Transform coding are data compression and lossy compression algorithms.

See Discrete cosine transform and Transform coding

Transient electromagnetics

Transient electromagnetics, (also time-domain electromagnetics / TDEM), is a geophysical exploration technique in which electric and magnetic fields are induced by transient pulses of electric current and the subsequent decay response measured.

See Discrete cosine transform and Transient electromagnetics

Transmux

TRANSMUX (Transcode-Multiplexing) is a signaling format change in telecommunications signaling between synchronous optical network signals SONET and asynchronous DS3 signals.

See Discrete cosine transform and Transmux

Ultra-high-definition television

Ultra-high-definition television (also known as Ultra HD television, Ultra HD, UHDTV, UHD and Super Hi-Vision) today includes 4K UHD and 8K UHD, which are two digital video formats with an aspect ratio of 16:9.

See Discrete cosine transform and Ultra-high-definition television

Unit of observation

In statistics, a unit of observation is the unit described by the data that one analyzes.

See Discrete cosine transform and Unit of observation

University of New Mexico

The University of New Mexico (UNM; Universidad de Nuevo México) is a public research university in Albuquerque, New Mexico.

See Discrete cosine transform and University of New Mexico

University of Surrey

The University of Surrey is a public research university in Guildford, Surrey, England.

See Discrete cosine transform and University of Surrey

University of Texas at Arlington

The University of Texas at Arlington (UTA or UT Arlington) is a public research university in Arlington, Texas.

See Discrete cosine transform and University of Texas at Arlington

University of Utah

The University of Utah (the U, U of U, or simply Utah) is a public research university in Salt Lake City, Utah.

See Discrete cosine transform and University of Utah

Upsampling

In digital signal processing, upsampling, expansion, and interpolation are terms associated with the process of resampling in a multi-rate digital signal processing system. Discrete cosine transform and upsampling are digital signal processing.

See Discrete cosine transform and Upsampling

Variable bitrate

Variable bitrate (VBR) is a term used in telecommunications and computing that relates to the bitrate used in sound or video encoding. Discrete cosine transform and Variable bitrate are data compression.

See Discrete cosine transform and Variable bitrate

VC-1

SMPTE 421, informally known as VC-1, is a video coding format. Discrete cosine transform and vC-1 are video compression.

See Discrete cosine transform and VC-1

Vectorcardiography

Vectorcardiography (VCG) is a method of recording the magnitude and direction of the electrical forces that are generated by the heart by means of a continuous series of vectors that form curving lines around a central point.

See Discrete cosine transform and Vectorcardiography

Video

Video is an electronic medium for the recording, copying, playback, broadcasting, and display of moving visual media. Discrete cosine transform and Video are data compression.

See Discrete cosine transform and Video

Video browsing

Video browsing, also known as exploratory video search, is the interactive process of skimming through video content in order to satisfy some information need or to interactively check if the video content is relevant.

See Discrete cosine transform and Video browsing

Video Coding Experts Group

The Video Coding Experts Group or Visual Coding Experts Group (VCEG, also known as Question 6) is a working group of the ITU Telecommunication Standardization Sector (ITU-T) concerned with standards for compression coding of video, images, audio signals, biomedical waveforms, and other signals. Discrete cosine transform and video Coding Experts Group are video compression.

See Discrete cosine transform and Video Coding Experts Group

Video coding format

A video coding format (or sometimes video compression format) is a content representation format of digital video content, such as in a data file or bitstream. Discrete cosine transform and video coding format are video compression.

See Discrete cosine transform and Video coding format

Video content analysis

Video content analysis or video content analytics (VCA), also known as video analysis or video analytics (VA), is the capability of automatically analyzing video to detect and determine temporal and spatial events.

See Discrete cosine transform and Video content analysis

Video decoder

A video decoder is an electronic circuit, often contained within a single integrated circuit chip, that converts base-band analog video signals to digital video.

See Discrete cosine transform and Video decoder

Video editing

Video editing is the post-production and arrangement of video shots.

See Discrete cosine transform and Video editing

Video game

A video game or computer game is an electronic game that involves interaction with a user interface or input device (such as a joystick, controller, keyboard, or motion sensing device) to generate visual feedback from a display device, most commonly shown in a video format on a television set, computer monitor, flat-panel display or touchscreen on handheld devices, or a virtual reality headset.

See Discrete cosine transform and Video game

Video game console

A video game console is an electronic device that outputs a video signal or image to display a video game that can be played with a game controller.

See Discrete cosine transform and Video game console

Video on demand

Video on demand (VOD) is a media distribution system that allows users to access videos, television shows and films digitally on request.

See Discrete cosine transform and Video on demand

Video processing

In electronics engineering, video processing is a particular case of signal processing, in particular image processing, which often employs video filters and where the input and output signals are video files or video streams. Discrete cosine transform and video processing are digital signal processing.

See Discrete cosine transform and Video processing

Video production

Video production is the process of producing video content for video.

See Discrete cosine transform and Video production

Videotelephony

Videotelephony (also known as videoconferencing or video call) is the use of audio and video for simultaneous two-way communication.

See Discrete cosine transform and Videotelephony

Voice activity detection

Voice activity detection (VAD), also known as speech activity detection or speech detection, is the detection of the presence or absence of human speech, used in speech processing. Discrete cosine transform and Voice activity detection are digital signal processing.

See Discrete cosine transform and Voice activity detection

Voice over IP

Voice over Internet Protocol (VoIP), also called IP telephony, is a method and group of technologies for voice calls for the delivery of voice communication sessions over Internet Protocol (IP) networks, such as the Internet.

See Discrete cosine transform and Voice over IP

Voicemail

A voicemail system (also known as voice message or voice bank) is a computer-based system that allows people to leave a recorded message when the recipient is unable to answer the phone.

See Discrete cosine transform and Voicemail

Vorbis

Vorbis is a free and open-source software project headed by the Xiph.Org Foundation. Discrete cosine transform and Vorbis are lossy compression algorithms.

See Discrete cosine transform and Vorbis

VP9

VP9 is an open and royalty-free video coding format developed by Google. Discrete cosine transform and VP9 are lossy compression algorithms and video compression.

See Discrete cosine transform and VP9

Watermark

A watermark is an identifying image or pattern in paper that appears as various shades of lightness/darkness when viewed by transmitted light (or when viewed by reflected light, atop a dark background), caused by thickness or density variations in the paper.

See Discrete cosine transform and Watermark

Web browser

A web browser is an application for accessing websites.

See Discrete cosine transform and Web browser

WebM

WebM is an audiovisual media file format.

See Discrete cosine transform and WebM

WebP

WebP is a raster graphics file format developed by Google intended as a replacement for JPEG, PNG, and GIF file formats. Discrete cosine transform and WebP are image compression.

See Discrete cosine transform and WebP

WhatsApp

WhatsApp (officially WhatsApp Messenger) is an instant messaging (IM) and voice-over-IP (VoIP) service owned by technology conglomerate Meta.

See Discrete cosine transform and WhatsApp

Wideband audio

Wideband audio, also known as wideband voice or HD voice, is high definition voice quality for telephony audio, contrasted with standard digital telephony "toll quality".

See Discrete cosine transform and Wideband audio

Wiener filter

In signal processing, the Wiener filter is a filter used to produce an estimate of a desired or target random process by linear time-invariant (LTI) filtering of an observed noisy process, assuming known stationary signal and noise spectra, and additive noise.

See Discrete cosine transform and Wiener filter

Wikipedia

Wikipedia is a free content online encyclopedia written and maintained by a community of volunteers, known as Wikipedians, through open collaboration and the wiki software MediaWiki.

See Discrete cosine transform and Wikipedia

Wiley (publisher)

John Wiley & Sons, Inc., commonly known as Wiley, is an American multinational publishing company that focuses on academic publishing and instructional materials.

See Discrete cosine transform and Wiley (publisher)

Windows Media is a discontinued multimedia framework for media creation and distribution for Microsoft Windows.

See Discrete cosine transform and Windows Media

Windows Media Audio (WMA) is a series of audio codecs and their corresponding audio coding formats developed by Microsoft.

See Discrete cosine transform and Windows Media Audio

Wireless

Wireless communication (or just wireless, when the context allows) is the transfer of information (telecommunication) between two or more points without the use of an electrical conductor, optical fiber or other continuous guided medium for the transfer.

See Discrete cosine transform and Wireless

Wireless sensor network

Wireless sensor networks (WSNs) refer to networks of spatially dispersed and dedicated sensors that monitor and record the physical conditions of the environment and forward the collected data to a central location.

See Discrete cosine transform and Wireless sensor network

World Scientific

World Scientific Publishing is an academic publisher of scientific, technical, and medical books and journals headquartered in Singapore.

See Discrete cosine transform and World Scientific

World Wide Web

The World Wide Web (WWW or simply the Web) is an information system that enables content sharing over the Internet through user-friendly ways meant to appeal to users beyond IT specialists and hobbyists.

See Discrete cosine transform and World Wide Web

Xiph.Org Foundation

Xiph.Org Foundation is a nonprofit organization that produces free multimedia formats and software tools.

See Discrete cosine transform and Xiph.Org Foundation

Y′UV

Y′UV, also written YUV, is the color model found in the PAL analogue color TV standard (excluding PAL-N).

See Discrete cosine transform and Y′UV

YIQ

YIQ is the color space used by the analog NTSC color TV system.

See Discrete cosine transform and YIQ

YouTube

YouTube is an American online video sharing platform owned by Google.

See Discrete cosine transform and YouTube

2D-plus-depth

2D-plus-Depth is a stereoscopic video coding format that is used for 3D displays, such as Philips WOWvx.

See Discrete cosine transform and 2D-plus-depth

3D film

3D films are motion pictures made to give an illusion of three-dimensional solidity, usually with the help of special glasses worn by viewers.

See Discrete cosine transform and 3D film

See also

Discrete transforms

H.26x

Image compression

JPEG

References

[1] https://en.wikipedia.org/wiki/Discrete_cosine_transform

Also known as Applications of the discrete cosine transform, DCT (math), Fast Cosine Transform, IDCT, Inverse cosine transform, Inverse discrete cosine transform.

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