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Data compression
Transform coding is a type of data compression for "natural" data like audio signals or photographic images. The transformation is typically lossless (perfectly
Transform_coding
Type of data compression
In the case of audio data, a popular form of transform coding is perceptual coding, which transforms the raw data to a domain that more accurately reflects
Lossy_compression
Technique used in signal processing and data compression
transform. Wang, Yao (2006). "Video Coding Standards: Part I" (PDF). Archived from the original (PDF) on 2013-01-23. Wang, Yao (2006). "Video Coding Standards:
Discrete_cosine_transform
Format for digital video content
cosine transform (DCT) coding and motion compensation. A computer software or hardware component that compresses or decompresses a specific video coding format
Video_coding_format
Video compression format, succeeds H.264/MPEG-4 AVC
volume Time code, for archival purposes Additional coding tool options have been added in the March 2016 draft of the screen content coding (SCC) extensions:
High_Efficiency_Video_Coding
Lossy audio compression format
Advanced Audio Coding (AAC) is an audio coding standard for lossy digital audio compression. It was developed by Dolby, AT&T, Fraunhofer and Sony, originally
Advanced_Audio_Coding
Compact encoding of digital data
source coding: encoding is done at the source of the data before it is stored or transmitted. Source coding should not be confused with channel coding, for
Data_compression
Digitally coded format for audio signals
used audio coding formats are MP3 and Advanced Audio Coding (AAC), both of which are lossy formats based on modified discrete cosine transform (MDCT) and
Audio_coding_format
Mathematical technique used in data compression and analysis
concentrated in just a few coefficients. This principle is called transform coding. After that, the coefficients are quantized and the quantized values
Wavelet_transform
video and image coding and various other applications. They are used in video coding for coding I-frames in VC-1 and for image coding in the JPEG XR format
Lapped_transform
Lossy audio coding technique
In signal processing, sub-band coding (SBC) is any form of transform coding that breaks a signal into a number of different frequency bands, typically
Sub-band_coding
Widely used standard for video compression
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. It
Advanced_Video_Coding
Distortion of media caused by lossy data compression
compression. Where transform coding is used, it typically assumes the form of one of the basis functions of the coder's transform space. When performing
Compression_artifact
Video compression technique, used to efficiently predict and generate video frames
introduced hybrid coding, which combines predictive coding with transform coding. However, his algorithm was initially limited to intra-frame coding in the spatial
Motion_compensation
science, Luby transform codes (LT codes) are the first class of practical fountain codes that are near-optimal erasure correcting codes. They were invented
Luby_transform_code
Topics referred to by the same term
Coding (therapy), alternative therapeutic methods used to treat addictions in the post-Soviet countries Queer coding Code Entropy encoding Transform coding
Coding
Audio compression standard
time-domain linear prediction and residual coding tools (ACELP-like techniques) for speech signal segments and transform coding tools (MDCT-based techniques) for
Unified Speech and Audio Coding
Unified_Speech_and_Audio_Coding
Mathematical transform on discrete signals
cosine transform (DCT) is the most widely used transform coding compression algorithm in digital media, followed by the discrete wavelet transform (DWT)
Discrete_transform
Digital audio format
collaborators at Bell Labs. Perceptual coding was first used for speech coding compression with linear predictive coding (LPC), which has origins in the work
MP3
Reduction of image size to save storage and transmission costs
Entropy coding started in the late 1940s with the introduction of Shannon–Fano coding, the basis for Huffman coding which was published in 1952. Transform coding
Image_compression
Indian-American electrical engineer (1946–1988)
adaptive image estimation and image data compression", including work on transform coding for image compression and block-based motion compensation for video
Anil K. Jain (electrical engineer, born 1946)
Anil_K._Jain_(electrical_engineer,_born_1946)
Topics referred to by the same term
transform, a type of mathematical transform Transform coding, a type of data compression for digital images Transform, clipping, and lighting, a term used
Transform
Lossy and lossless image format
features a lossy compression mode called VarDCT built on block-based transform coding, which is similar to — but significantly improves and expands upon
JPEG_XL
Algorithm used in data compression
by using the BWT followed by move-to-front coding and Huffman coding or arithmetic coding. The transform is done by constructing a matrix (known as the
Burrows–Wheeler_transform
Mathematical transform using in signal processing
modern audio coding standards, including MP3, Dolby Digital (AC-3), Vorbis (Ogg), Windows Media Audio (WMA), ATRAC, Cook, Advanced Audio Coding (AAC), High-Definition
Modified discrete cosine transform
Modified_discrete_cosine_transform
of transforms in mathematics. Abel transform Aboodh transform Bateman transform Fourier transform Fourier cosine transform Fourier sine transform Fractional
List_of_transforms
Processing unit in image and video compression formats
refer to block coding artifacts. JPEG, H.261, MPEG-1 Part 2, H.262/MPEG-2 Part 2, H.263 and H.264 Coding tree unit Discrete cosine transform Video compression
Macroblock
Audio codec
is the use of transform coding (transform coded excitation – TCX) additionally to ACELP. This greatly improves the generic audio coding. Automatic switching
Extended Adaptive Multi-Rate – Wideband
Extended_Adaptive_Multi-Rate_–_Wideband
Color model
HEVC, VVC, JPEG XR, and Dirac. It is simple to compute, has good transform coding gain, and can be losslessly converted to and from RGB with fewer bits
YCoCg
Indian-American electrical engineer and computer scientist (born 1940)
transform (MDCT), is used in modern audio compression formats such as MP3, Advanced Audio Coding (AAC), and Vorbis (OGG). The discrete sine transform
Nasir_Ahmed_(engineer)
Technology that records, stores, and reproduces sound
predictive coding (APC), a perceptual coding algorithm that exploited the masking properties of the human ear, followed in the early 1980s with the code-excited
Digital_audio
Video compression standard
family of video coding standards in the domain of the ITU-T Study Group 16 Video Coding Experts Group (VCEG, then Specialists Group on Coding for Visual Telephony)
H.261
Electronic manipulation of audio signals
audio coding and is widely used in speech coding, while MDCT coding is widely used in modern audio coding formats such as MP3 and Advanced Audio Coding (AAC)
Audio_signal_processing
Transform in numerical harmonic analysis
Tabatabai, Ali J. (1988). "Sub-band coding of digital images using symmetric short kernel filters and arithmetic coding techniques". ICASSP-88., International
Discrete_wavelet_transform
coding: adaptive coding technique based on Huffman coding Package-merge algorithm: Optimizes Huffman coding subject to a length restriction on code strings
List_of_algorithms
Audio and video formats by Intel
third-party decoders. Indeo Audio Coder is a transform coding format based on the modified discrete cosine transform (MDCT). Proprietary bitstream encoding
Indeo
Study of the properties of codes and their fitness
There are four types of coding: Data compression (or source coding) Error control (or channel coding) Cryptographic coding Line coding Data compression attempts
Coding_theory
Video encoding standard
difference coding using a discrete cosine transform (DCT) of size 8×8, scalar quantization, and variable-length codes (like Huffman codes) for entropy coding. H
MPEG-1
Joining of several channels of similar information to allow more efficient encoding
{\displaystyle S=L-R} . Unlike intensity stereo coding, M/S coding is a special case of transform coding, and retains the audio perfectly without introducing
Joint_encoding
important research paper combining block-based motion compensation and transform coding in December 1981. The result was PictureTel, creating one of the first
PictureTel
Analytical process
software. Prior to coding, an annotation scheme is defined. It consists of codes or tags. During coding, coders manually add codes into data where required
Coding_(social_sciences)
Audio compression technologies
The basis of the Dolby AC-3 multi-channel audio coding standard is the modified discrete cosine transform (MDCT), a lossy audio compression algorithm. It
Dolby_Digital
Method of data analysis
Singular spectrum analysis Singular value decomposition Sparse PCA Transform coding Weighted least squares Gewers, Felipe L.; Ferreira, Gustavo R.; Arruda
Principal_component_analysis
Classical quantization technique from signal processing
favor of those based on motion compensated prediction combined with transform coding, e.g. those defined in MPEG standards, as the low decoding complexity
Vector_quantization
Audio codec
Siren is a family of patented, transform-based, wideband audio coding formats and their audio codec implementations developed and licensed by PictureTel
Siren_(codec)
ITU-T Recommendation
G.729.1 uses three-stage coding: embedded code-excited linear prediction (CELP) coding of the lower band, parametric coding of the higher band by Time-Domain
G.729
Orthogonal wavelets
Adaptive Transform Coding of Speech Signals. Ph.D. Thesis. Polytechnic University, 1987. R.A. Haddad and A.N. Akansu, "A New Orthogonal Transform for Signal
Daubechies_wavelet
Involutive change of basis in linear algebra
Hadamard transform (also known as the Walsh–Hadamard transform, Hadamard–Rademacher–Walsh transform, Walsh transform, or Walsh–Fourier transform) is an
Hadamard_transform
Integral transform
most popular applications of wavelet transform is image compression. The advantage of using wavelet-based coding in image compression is that it provides
Continuous_wavelet_transform
ITU-T Recommendation
a three-stage coding structure: embedded code-excited linear prediction (CELP) coding of the lower band (50–4000 Hz), parametric coding of the higher
G.729.1
Lossy audio compression applied to human speech
Speech coding is an application of data compression to digital audio signals containing speech. Speech coding uses speech-specific parameter estimation
Speech_coding
Integral transform useful in probability theory, physics, and engineering
In mathematics, the Laplace transform, named after Pierre-Simon Laplace (/ləˈplɑːs/), is an integral transform that converts a function of a real variable
Laplace_transform
ITU-T standard audio coding format
Polycom and Ericsson. G.719 is based on modified discrete cosine transform (MDCT) coding. It incorporates elements of Polycom's Siren22 codec (22 kHz) and
G.719
Overview of and topical guide to algorithms
Hash-based message authentication code Password-based key derivation function Bcrypt Argon2 Huffman coding Arithmetic coding Run-length encoding Lempel–Ziv–Welch
Outline_of_algorithms
Audio codec by Sony
Adaptive Transform Acoustic Coding (ATRAC) is a family of proprietary audio compression algorithms developed by Sony. MiniDisc was the first commercial
ATRAC
2013 open and royalty-free video coding format
royalty-free video coding format developed by Google. VP9 is the successor to VP8 and competes mainly with MPEG's High Efficiency Video Coding (HEVC/H.265)
VP9
ITU-T Recommendation
the lower layers using overlap-add modified discrete cosine transform (MDCT) transform coding. Several technologies are used to encode the MDCT coefficients
G.718
ISBN 0-8493-0967-0. Whittle, Robin. "Lossless Compression of Audio". First Principles. Retrieved 2011-01-07. Lossless Transform Coding (LTAC) of Audio Signals v t e
Lossless Transform Audio Compression
Lossless_Transform_Audio_Compression
tables compare general and technical information for a variety of audio coding formats. For listening tests comparing the perceived audio quality of audio
Comparison of audio coding formats
Comparison_of_audio_coding_formats
Context-adaptive variable-length coding (CAVLC) is a form of entropy coding used in H.264/MPEG-4 AVC video encoding. It is an inherently lossless compression
Context-adaptive variable-length coding
Context-adaptive_variable-length_coding
Discrete Fourier transform algorithm
Fourier transform (FFT) is an algorithm that computes the discrete Fourier transform (DFT), or its inverse (IDFT), of a sequence. A Fourier transform converts
Fast_Fourier_transform
Measure used in digital signal processing to characterize an audio spectrum
and research, and psychoacoustics in humans. J. D. Johnston (1988). "Transform coding of audio signals using perceptual noise criteria". IEEE Journal on
Spectral_flatness
2008 open and royalty-free video coding format
Vorbis and Opus audio. The image format WebP is based on VP8's intra-frame coding. VP8's direct successor, VP9, and the royalty-free AV1 codec from the Alliance
VP8
Video compression standard
scalable video coding for temporal (frame rate), spatial (resolution), SNR, color gamut and dynamic range differences, stereo/multiview coding, panoramic
Versatile_Video_Coding
Platform for users to upload, share, or live stream videos on the Internet
basis for the first practical video coding format, H.261, in 1988. It was followed by more popular DCT-based video coding formats, most notably the MPEG and
Online_video_platform
Image compression standard and coding system
wavelet transform in JPEG 2000. Like JPEG 1992, JPEG 2000 is robust to bit errors introduced by noisy communication channels, due to the coding of data
JPEG_2000
Video compression format, succeeds MPEG-1
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
H.262/MPEG-2_Part_2
Unreproducible object used in digital security
technique to reduce the error rate. Joint reliability–secrecy coding methods based on transform coding are used to obtain significantly higher reliabilities for
Physical_unclonable_function
Video compression standard
of transform coefficients, scalar quantization, run-length transform coefficient symbols, and variable-length coding (basically like Huffman coding but
H.263
File format and file compression program
run-length encoding (RLE), Burrows–Wheeler transform (BWT), move-to-front transform (MTF), and Huffman coding. bzip2 compresses data in blocks between 100
Bzip2
Working group of ITU-T
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
Video_Coding_Experts_Group
Entropy coding method
Context-adaptive binary arithmetic coding (CABAC) is a form of entropy encoding used in the H.264/MPEG-4 AVC and High Efficiency Video Coding (HEVC) standards. It is
Context-adaptive binary arithmetic coding
Context-adaptive_binary_arithmetic_coding
Code added to allow recovery of lost data
Erasure coding was invented by Irving Reed and Gustave Solomon in 1960. There are many different erasure coding schemes. The most popular erasure codes are
Erasure_code
Lossy compression method for reducing the size of digital images
Kimura, Shigenori Kino, Fumitaka Ono, and Masayuki Yoshida – Coding apparatus and coding method The JPEG specification also cites three other patents
JPEG
Royalty-free video codec
techniques used in Thor were tested in conjunction with the lapped transform coding techniques from the Daala codec. On September 1, 2015, Cisco announced
Thor_(video_codec)
Method of detecting shapes within images
The Hough transform (/hʌf/) is a feature extraction technique used in image analysis, computer vision, pattern recognition, and digital image processing
Hough_transform
Image compression standard
similar wavelet coding schemes. The transform (DWT) can be computed using either floating-point or integer arithmetic. The integer transform uses non-linear
CCSDS_122.0-B-1
Method by which information is represented in the brain
or "spike firing", increases. Rate coding is sometimes called frequency coding. Rate coding is a traditional coding scheme, assuming that most, if not
Neural_coding
Use of digital projectors in cinemas
of the Dolby Digital (AC-3) audio coding standard in 1991. Its main basis is the modified discrete cosine transform (MDCT), a lossy audio compression
Digital_cinema
Lossy audio compression algorithm
James D.; Ferreira, Anibal J. (Mar 1992). "Sum-difference stereo transform coding" (PDF). [Proceedings] ICASSP-92: 1992 IEEE International Conference
Perceptual_Audio_Coder
Audio codec
HDC (Hybrid Digital Coding or High-Definition Coding) with SBR (spectral band replication) is a proprietary lossy audio compression codec developed by
High-Definition_Coding
Procedure in computing
Extract, transform, load (ETL) is a three-phase computing process where data is extracted from an input source, transformed (including cleaning), and loaded
Extract,_transform,_load
Data compression technique
extrapolation from already coded pixels for effective delta coding. It is one of the two classes of predictive coding methods in video coding. Its counterpart is
Intra-frame_coding
Function in discrete mathematics
In mathematics, the discrete Fourier transform (DFT) is a discrete version of the Fourier transform that converts a finite sequence of numbers into another
Discrete_Fourier_transform
Error-correcting codes
In information theory and coding theory, Reed–Solomon codes are a group of error-correcting codes that were introduced by Irving S. Reed and Gustave Solomon
Reed–Solomon_error_correction
Function for integral Fourier-like transform
characteristics and design considerations for temporal subband video coding". ITU-T. Video Coding Experts Group. Retrieved 13 September 2019. Bovik, Alan C. (2009)
Wavelet
Spatial statistical signal analysis
reduction Orthogonal matrix Signal separation Singular spectrum analysis Transform coding Varimax rotation Stephenson, David B.; Benestad, Rasmus E. (2000-09-02)
Empirical orthogonal functions
Empirical_orthogonal_functions
Concept in coding theory
In coding theory, triangular network coding (TNC) is a non-linear network coding based packet coding scheme introduced by Qureshi, Foh & Cai (2012). Previously
Triangular_network_coding
Coding tree unit (CTU) is the basic processing unit of the High Efficiency Video Coding (HEVC) video standard and conceptually corresponds in structure
Coding_tree_unit
studied coding at Northern Virginia Community College, graduating with honors. During his time in college, he served as president of NVCC's Code Club. Bazarov
Murat_Bazarov
Programming idiom for efficiently sorting a list by a computed key
In computer programming, the Schwartzian transform is a technique used to improve the efficiency of sorting a list of items. This idiom is appropriate
Schwartzian_transform
Lossless data compression method
this set of codes in an adaptive coding scheme; "Rice coding" can refer either to that adaptive scheme or to using that subset of Golomb codes. Whereas a
Golomb_coding
Theoretical model of sensory neuroscience
optimized for coding images (or sounds) representative of those found in nature. Researchers have shown that filters optimized for coding natural images
Efficient_coding_hypothesis
Divide-and-conquer algorithm to compute a Hadamard transform
Hadamard ordered fast Walsh–Hadamard transform (FWHTh) is an efficient algorithm to compute the Walsh–Hadamard transform (WHT). A naive implementation of
Fast_Walsh–Hadamard_transform
number of patents have been filed in the United States since 1978 for video coding systems and devices adhering to the MPEG-2 standard. All of these patents
List of United States MPEG-2 patents
List_of_United_States_MPEG-2_patents
Audio codec
High-Efficiency Advanced Audio Coding (HE-AAC) is an audio coding format for lossy data compression of digital audio as part of the MPEG-4 standards. It
High-Efficiency Advanced Audio Coding
High-Efficiency_Advanced_Audio_Coding
Parrein, N. Normand, and J. Guédon, “Multiple description coding using exact discrete Radon transform,” in IEEE Data Compression Conference, 2001, p. 508.
Mojette_transform
Approach used in obfuscating software
as transformed code. The original intermediate code is absent to a certain degree, but deobfuscation can still give a clear view of the original code flow
Code_morphing
Digital video coder/decoder
lossy compression for video coding, leading to the development of the H.261 standard. H.261 was the first practical video coding standard, and was developed
Video_codec
Lossless data compression algorithm
contain repeats, where the entropy-coding cost of "spelling out" the repeats is less than the cost creating and entropy-coding a rule to capture them. (In general
Grammar-based_code
TRANSFORM CODING
TRANSFORM CODING
Girl/Female
Greek
The laurel tree. The mythological virtuous Daphne was transformed into a laurel tree to protect...
Girl/Female
Greek
Most beautiful. Calista was a Mythological Arcadian who transformed into a she-bear, then into...
Girl/Female
Latin
or Selena. One of seven mythological daughters of Atlas transformed by Zeus into stars of the...
Girl/Female
Greek American
Most beautiful. , Mythological Arcadian who transformed into a she-bear, then into the Great Bear...
Girl/Female
Greek
Bee. Famous bearer: Melissa, Mythological princess of Crete transformed to a bee after learning...
Surname or Lastname
English
English : habitational name from a place in Worcestershire, named Bransford, from Old English brægen ‘hill’ + ford ‘hill’.
Girl/Female
Greek American
Most beautiful. Calista was a Mythological Arcadian who transformed into a she-bear, then into...
Girl/Female
Greek
Most beautiful. , Mythological Arcadian who transformed into a she-bear, then into the Great Bear...
Girl/Female
Greek
Most beautiful. , Mythological Arcadian who transformed into a she-bear, then into the Great Bear...
Boy/Male
Anglo, Australian, British, English
From the Raven Ford
Girl/Female
Greek American
Bee. Famous bearer: Melissa, Mythological princess of Crete transformed to a bee after learning...
Girl/Female
Greek Latin
Most beautiful. Calista was a Mythological Arcadian who transformed into a she-bear, then into...
Girl/Female
Israeli
The laurel tree. The mythological virtuous Daphne was transformed into a laurel tree to protect...
Girl/Female
Greek
Bee. Famous bearer: Melissa, Mythological princess of Crete transformed to a bee after learning...
Girl/Female
Greek
Most beautiful. In Mythology the Arcadian nymph Calista transformed into a she-bear; then into...
Girl/Female
Greek
Bee. Famous bearer: Melissa, Mythological princess of Crete transformed to a bee after learning...
Surname or Lastname
English
English : habitational name, probably from Ramsfold Farm in Lurgashall, Sussex. In a 14th-century record the name occurs as de Rammesford.
Girl/Female
Greek American
Bee. Famous bearer: Melissa, Mythological princess of Crete transformed to a bee after learning...
Girl/Female
Greek
Bee. Famous bearer: Melissa, Mythological princess of Crete transformed to a bee after learning...
Girl/Female
Gujarati, Hindu, Indian, Sanskrit
Transformer
TRANSFORM CODING
TRANSFORM CODING
Girl/Female
Muslim
Scared
Girl/Female
Biblical
The salvation of the Lord.
Boy/Male
Hindu, Indian, Kannada, Marathi, Sanskrit, Telugu
Illuminating
Boy/Male
Tamil
Naughty boy
Girl/Female
Hindu, Indian, Marathi
Very Religious
Boy/Male
American, British, English, French
Little Famous One; Deserving
Boy/Male
Tamil
Yasvin | யாஸà¯à®µà¯€à®¨
Winner of fame
Girl/Female
Bengali, Indian, Kannada
Son of Bali
Girl/Female
English
which is a.
Boy/Male
Indian, Telugu
Pearl
TRANSFORM CODING
TRANSFORM CODING
TRANSFORM CODING
TRANSFORM CODING
TRANSFORM CODING
v. t.
To transfigure; to transform.
v. t.
To change, as an algebraic expression or geometrical figure, into another from without altering its value.
n.
A horizontal crossbar in a window, over a door, or between a door and a window above it. Transom is the horizontal, as mullion is the vertical, bar across an opening. See Illust. of Mullion.
v. t.
To transfer or transform the nature of.
v. t. & i.
To transmute; to transform; to metamorphose.
v. t.
To transform into a goblin.
v. i.
To be changed in form; to be metamorphosed.
v. t.
To remove from one substance or surface to another; as, to transfer drawings or engravings to a lithographic stone.
v. t.
To change the form of; to change in shape or appearance; to metamorphose; as, a caterpillar is ultimately transformed into a butterfly.
p. pr. & vb. n.
of Transform
v. t.
To convey from one place or person another; to transport, remove, or cause to pass, to another place or person; as, to transfer the laws of one country to another; to transfer suspicion.
v. t.
To change into another substance; to transmute; as, the alchemists sought to transform lead into gold.
n.
One who, or that which, transforms. Specif. (Elec.), an apparatus for producing from a given electrical current another current of different voltage.
v.
A vessel employed for transporting, especially for carrying soldiers, warlike stores, or provisions, from one place to another, or to convey convicts to their destination; -- called also transport ship, transport vessel.
imp. & p. p.
of Transform
v. t.
To change; to transform; to invert.
v. t.
To transform anew or back.
v. t.
To carry or bear from one place to another; to remove; to convey; as, to transport goods; to transport troops.
v. t.
To change in nature, disposition, heart, character, or the like; to convert.
v. t.
To transform into a mineral.