Macroblock feature and motion involved multi-stage fast inter mode decision algorithm in H.264/AVC video coding

Authors:
Yiqing Huang;Qin Liu;Takeshi Ikenaga
Affiliations:
Waseda University, Kitakyushu, Fukuoka, Japan;Waseda University, Kitakyushu, Fukuoka, Japan;Waseda University, Kitakyushu, Fukuoka, Japan
Venue:
ICIP'09 Proceedings of the 16th IEEE international conference on Image processing
Year:
2009

Citing 3
Cited 0

Overview of the H.264/AVC video coding standard

IEEE Transactions on Circuits and Systems for Video Technology
Fast mode decision algorithm for intraprediction in H.264/AVC video coding

IEEE Transactions on Circuits and Systems for Video Technology
Fast Coding Mode Selection With Rate-Distortion Optimization for MPEG-4 Part-10 AVC/H.264

IEEE Transactions on Circuits and Systems for Video Technology

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Abstract

One fast inter mode decision algorithm is proposed in this paper. The whole algorithm is convoluted with block matching process. Firstly, beforeME process, by exploiting spatial and temporal information, a skip mode early detection algorithm is proposed. Also, in this stage, edge gradient is used to filter out unpromising modes. Secondly, during the ME stage, the original search window is separated into several layers and our fast decision scheme works with motion information of each layer. Moreover, before stepping into small modes, the distribution of SAD (sum-of-absolute-difference) and RD (rate distortion) costs of big modes are analyzed in an early stage to accelerate the inter mode decision process. Experiments show that our algorithm can achieve a speed-up factor of up to 66.0% with trivial bit increment and quality degradation.