A Fast Macroblock Mode Decision Algorithm for the Baseline Profile in the H.264 Video Coding Standard

Authors:
Chang-Hsing Lee;Cheng-Chang Lien;Jau-Ling Shih;Ping-Yu Lin
Affiliations:
Department of Computer Science and Information Engineering, Chung Hua University, Hsinchu, Taiwan 300;Department of Computer Science and Information Engineering, Chung Hua University, Hsinchu, Taiwan 300;Department of Computer Science and Information Engineering, Chung Hua University, Hsinchu, Taiwan 300;Department of Computer Science and Information Engineering, Chung Hua University, Hsinchu, Taiwan 300
Venue:
PSIVT '09 Proceedings of the 3rd Pacific Rim Symposium on Advances in Image and Video Technology
Year:
2009

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Abstract

A fast macroblock (MB) mode decision algorithm is proposed to reduce the computational complexity of H.264 video coding. First, a SKIP mode detection algorithm is developed to detect as many "skipped" MB as possible. As a result, the encoding functions associated with all inter modes and all intra modes can be omitted. In addition, an early inter mode termination mechanism is developed to disable some inter modes and all intra modes during the motion estimation process. Compared with JM_FFS, the proposed algorithm can reduce 71.35% of the encoding time with a negligible degradation in video quality and compression ratio.