A Codeword Classification Mapping Based CAVLC Decoding Implement Algorithm

The property of H.264/AVC CAVLC(context-adaptive variable-length coding) and the characteristic of Huffman Coding are analyzed, and a high efficiency implement algorithm of CAVLC decoding based on codeword classification mapping is proposed in this paper. According to the characteristic of Huffman C...

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Bibliographic Details
Published in:2009 First International Conference on Information Science and Engineering pp. 433 - 436
Main Authors: Mafei Liu, Xuewen Zeng, Hong Ni
Format: Conference Proceeding
Language:English
Published: IEEE 01.12.2009
Subjects:
Acceleration
Acoustical engineering
Acoustics
Automatic voltage control
Costs
Decoding
Degradation
Digital video broadcasting
Huffman coding
Video compression
ISBN:142444909X, 9781424449095
ISSN:2160-1283
Online Access:Get full text
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Summary:The property of H.264/AVC CAVLC(context-adaptive variable-length coding) and the characteristic of Huffman Coding are analyzed, and a high efficiency implement algorithm of CAVLC decoding based on codeword classification mapping is proposed in this paper. According to the characteristic of Huffman Coding, mapping the codewords and it's syntax element to classification mapped tables, accelerate the process of CAVLC decoding enormously at the expense of little memory consumption. The simulation results show that the proposed algorithm achieves an approximate 24-50% speed advance without degrading video quality as compared to the conventional CAVLC decoding.
ISBN:142444909X
9781424449095
ISSN:2160-1283
DOI:10.1109/ICISE.2009.10