NDLI: Improved arithmetic coding in H.264/AVC using Context-Tree Weighting and Prediction by Partial (2007)

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Improved arithmetic coding in H.264/AVC using Context-Tree Weighting and Prediction by Partial (2007)

Content Provider	CiteSeerX
Author	Karwowski, Damian Domański, Marek
Description	In this paper, an improvement of coding efficiency of the Context-based Adaptive Binary Arithmetic Coding (CABAC) is proposed for applications in Advanced Video Codecs (H.264/AVC). In the paper, more accurate estimation technique for conditional probabilities of symbols is proposed. To achieve that, the well-known data modeling technique of the Context-Tree Weighting (CTW) is used. A novel method of incorporating CTW into the H.264/AVC codec is proposed. The compression efficiency of the modified H.264/AVC codec (with CTW) has been thoroughly tested and compared against the coding efficiency of the original H.264/AVC (with CABAC). Experimental results show that the use of CTW with CABAC allows for up to 2.5 % compression efficiency increase with respect to the original CABAC. Index Terms — Adaptive arithmetic coding, context-tree weighting, entropy coding, hybrid compression
File Format	PDF
Language	English
Publisher Date	2007-01-01
Publisher Institution	Matching”, European Signal Processing Conf. EUSIPCO 2007
Access Restriction	Open
Subject Keyword	Arithmetic Coding Conditional Probability Compression Efficiency Coding Efficiency Accurate Estimation Technique Original Cabac Advanced Video Codecs Index Term Adaptive Arithmetic Coding Well-known Data Novel Method Entropy Coding Compression Efficiency Increase Context-based Adaptive Binary Arithmetic Coding Avc Codec Cabac Allows Experimental Result Context-tree Weighting Hybrid Compression
Content Type	Text
Resource Type	Article

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