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Application of Context-bsaed Adaptive Binary Arithmetic Coding in H.264/AVC

Xiaohai He

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Abstract

The emerging H.264/AVC video coding standard is developed collaboratively by the ITU-T and ISO/IEC. The standard specifies two types of entropy coding:Context-based Adaptive Binary Arithmetic Coding (CABAC) and Context-bsaed Adaptive Variable-Length Coding (CAVLC). By effectively combining adaptation technique, context model and binary arithmetic coding together, CABAC as a new entropy coding method has achived a high level compression. There are some new ways to make it easy to be carried out. To prove the performance of CABAC,we test it by referenced application. The experiment indicates that CABAC saves bit rate than CAVLC with the same quality of image.

About this research paper

What this paper is about

The emerging H.264/AVC video coding standard is developed collaboratively by the ITU-T and ISO/IEC. The standard specifies two types of entropy coding:Context-based Adaptive Binary Arithmetic Coding (CABAC) and Context-bsaed Adaptive Variable-Length Coding (CAVLC). By effectively combining adaptation technique, context model and binary arithmetic coding together, CABAC as a new entropy coding method has achived a high level compression. There are some new ways to make it easy to be carried out. To prove the performance of CABAC,we test it by referenced application. The experiment indicates that CABAC saves bit rate than CAVLC with the same quality of image.

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Available abstract

The emerging H.264/AVC video coding standard is developed collaboratively by the ITU-T and ISO/IEC. The standard specifies two types of entropy coding:Context-based Adaptive Binary Arithmetic Coding (CABAC) and Context-bsaed Adaptive Variable-Length Coding (CAVLC). By effectively combining adaptation technique, context model and binary arithmetic coding together, CABAC as a new entropy coding method has achived a high level compression. There are some new ways to make it easy to be carried out. To prove the performance of CABAC,we test it by referenced application. The experiment indicates that CABAC saves bit rate than CAVLC with the same quality of image.

Key concepts: Context-adaptive variable-length coding, Context-adaptive binary arithmetic coding, Entropy encoding, Arithmetic coding, Computer science, Variable-length code, Coding (social sciences), Arithmetic

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