Context-Adaptive Binary Arithmetic Coding

E423519

entropy coding technique lossless coding method

Context-Adaptive Binary Arithmetic Coding (CABAC) is an advanced lossless entropy coding technique used in modern video compression standards to achieve high compression efficiency by modeling symbol probabilities with context.

Try in SPARQL Jump to: Surface forms Disambiguation Statements Elicitation Referenced by

All labels observed (2)

Label	Occurrences
CABAC	2
Context-Adaptive Binary Arithmetic Coding canonical	1

How this entity was disambiguated

This entity first appeared as the object of triple T4239026 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: Context-Adaptive Binary Arithmetic Coding
Context triple: [H.265, entropyCodingMethod, Context-Adaptive Binary Arithmetic Coding]

A. Advanced Audio Coding
Advanced Audio Coding is a lossy digital audio compression format designed to provide better sound quality than MP3 at similar or lower bitrates and widely used in streaming, broadcasting, and multimedia applications.
B. Huffman
Huffman is a surname most commonly associated with the American computer scientist David A. Huffman, known for developing Huffman coding in information theory and data compression.
C. Scott encoding
Scott encoding is a method in lambda calculus for representing algebraic data types and their pattern matching behavior using higher-order functions.
D. LDPC
LDPC (Low-Density Parity-Check) is a powerful class of linear error-correcting codes known for near-Shannon-limit performance and widespread use in modern high-throughput communication systems.
E. ISO/IEC 14496-3
ISO/IEC 14496-3 is an international standard that specifies the audio coding technologies of MPEG-4, including Advanced Audio Coding (AAC) and related audio formats.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: Context-Adaptive Binary Arithmetic Coding
Target entity description: Context-Adaptive Binary Arithmetic Coding (CABAC) is an advanced lossless entropy coding technique used in modern video compression standards to achieve high compression efficiency by modeling symbol probabilities with context.

A. Advanced Audio Coding
Advanced Audio Coding is a lossy digital audio compression format designed to provide better sound quality than MP3 at similar or lower bitrates and widely used in streaming, broadcasting, and multimedia applications.
B. Huffman
Huffman is a surname most commonly associated with the American computer scientist David A. Huffman, known for developing Huffman coding in information theory and data compression.
C. Scott encoding
Scott encoding is a method in lambda calculus for representing algebraic data types and their pattern matching behavior using higher-order functions.
D. LDPC
LDPC (Low-Density Parity-Check) is a powerful class of linear error-correcting codes known for near-Shannon-limit performance and widespread use in modern high-throughput communication systems.
E. ISO/IEC 14496-3
ISO/IEC 14496-3 is an international standard that specifies the audio coding technologies of MPEG-4, including Advanced Audio Coding (AAC) and related audio formats.
F. None of above. chosen

Statements (48)

Predicate	Object
instanceOf	entropy coding technique ⓘ lossless coding method ⓘ
abbreviation	CABAC ⓘ linked to: Context-Adaptive Binary Arithmetic Coding
abbreviationComparedWith	CAVLC ⓘ
advantage	better compression than CAVLC ⓘ
advantageOver	CAVLC ⓘ
appliedTo	block partitioning information ⓘ intra prediction modes ⓘ macroblock syntax elements ⓘ motion information ⓘ transform coefficients ⓘ
basedOn	arithmetic coding ⓘ
codingDomain	binary symbols ⓘ
comparedWith	Context-Based Adaptive Variable Length Coding ⓘ linked to: H.26x family of video coding standards
compressionType	lossy video compression container with lossless entropy stage ⓘ
developedFor	H.264/AVC High profiles ⓘ linked to: H.264
disadvantage	higher computational complexity ⓘ more difficult hardware implementation ⓘ
domain	image compression ⓘ video coding ⓘ
encodingType	binary arithmetic coding ⓘ
feature	adaptive update of probability states ⓘ bypass mode for equiprobable symbols ⓘ multiple context models per syntax element ⓘ range subdivision for arithmetic coding ⓘ termination mode for end of slices or segments ⓘ
goal	improve compression efficiency of video codecs ⓘ
operatesOn	bitstreams ⓘ
optimizationTarget	rate-distortion performance ⓘ
property	context-adaptive probability modeling ⓘ high compression efficiency ⓘ lossless entropy coding ⓘ
relatedConcept	arithmetic coding ⓘ context modeling ⓘ entropy coding ⓘ probability estimation ⓘ
standardizedBy	ISO/IEC JTC 1 ⓘ ITU-T ⓘ linked to: ITU Telecommunication Standardization Sector
usedIn	video compression ⓘ
usedInStandard	H.264/AVC ⓘ linked to: H.264 H.265/HEVC ⓘ linked to: H.265 H.266/VVC ⓘ linked to: H.266 MPEG-4 AVC ⓘ linked to: H.264
uses	binarization of syntax elements ⓘ binary arithmetic encoder ⓘ context models ⓘ context selection based on neighboring symbols ⓘ probability estimation ⓘ

How these facts were elicited

Referenced by (3)

Full triples — surface form annotated when it differs from this entity's canonical label.

H.265 → entropyCodingMethod → Context-Adaptive Binary Arithmetic Coding ⓘ

Context-Adaptive Binary Arithmetic Coding → abbreviation → CABAC ⓘ

linked to: Context-Adaptive Binary Arithmetic Coding

Versatile Video Coding → feature → CABAC ⓘ