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Everything about Context-adaptive binary arithmetic coding

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 a lossless compression technique, although the video coding standards in which it is used are typically for lossy compression applications. CABAC is notable for providing much better compression than most other entropy encoding algorithms used in video encoding, and it is one of the key elements that provides the H.264/AVC encoding scheme with better compression capability than its predecessors. Wikipedia →

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  1. Read the overview: Context-adaptive binary arithmetic codingA 5-minute orientation
  2. Skim a recent paper: Two-Stage Golomb – Context-Adaptive Binary Arithmetic Coders Coding in Lossless Image CompressionInfluential work since 2022
  3. Read the landmark paper: Context-based adaptive binary arithmetic coding in the H.264/AVC video compression standardCited 976 times
  4. Go sideways: Context-adaptive variable-length codingA closely related topic
  5. Go sideways: Advanced Video CodingA closely related topic

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🗂️ The subject at a glance

  1. Algorithm
  2. Example
  3. The arithmetic decoding engine
  4. History

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🆕 Influential since 2022

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