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Residual Filter to Improve Performance of H.264 Video Coding Standard  

Song, Won-Seon (숭실대학교 정보통신전자 공학부)
Hong, Min-Cheol (숭실대학교 정보통신전자 공학부)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.31, no.11C, 2006 , pp. 1066-1070 More about this Journal
Abstract
In this paper, we present a residual filter to improve performance of H.264 compressed video. In general, noisy video sequences captured by imaging system result in decline of coding efficiency and unpleasant coding artifacts due to higher frequency components. By incorporating local statistics and quantization parameter into filtering process, the spurious noise is significantly attenuated and coding efficiency is improved, leading to improvement of visual quality and to bit-rate saving for given quantization step size. In addition, in order to reduce the complexity of the residual filter, noise induced by analyzing H.264 transformation and quantization processes are introduced. The simulation results show the capability of the proposed algorithm.
Keywords
H.264; Residual Filter; local Statistics; Coding Efficiency; Quantization;
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