Title :
Fast mode selection based on texture analysis and local motion activity in H.264/JVT
Author :
Yanfei Shen ; Dongming Zhang ; Chao Huang ; Jintao Li
Author_Institution :
Inst. of Comput. Technol., Chinese Acad. of Sci., China
Abstract :
The H.264/JVT video coding standard can achieve considerably higher coding efficiency than previous standards. Unfortunately, this comes at the cost of greatly increased complexity at the encoder, mainly due to multi-reference frames and multi-block type motion estimation. In order to speed up the process of multi-block type motion estimation, a method is proposed to eliminate some redundant coding modes which contribute very little coding gain; it is based on texture analysis and local motion activity. Simulation results show that the proposed method can eliminate about half of all coding modes while keeping similar coding efficiency, visual quality and bitrates. Furthermore, this method can be used with any fast motion estimation algorithm.
Keywords :
computational complexity; image texture; motion estimation; video coding; H.264 video coding standard; JVT video coding; coding efficiency; complexity; local motion activity; mode selection; multi-block type motion estimation; multi-reference frames; redundant coding modes; texture analysis; visual quality; Bit rate; Chaos; Computational complexity; Computers; Costs; Discrete cosine transforms; Encoding; Motion analysis; Motion estimation; Video coding;
Conference_Titel :
Communications, Circuits and Systems, 2004. ICCCAS 2004. 2004 International Conference on
Conference_Location :
Chengdu
Print_ISBN :
0-7803-8647-7
DOI :
10.1109/ICCCAS.2004.1346184