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Fast inter-mode decision algorithm for H.264/AVC using macroblock correlation and motion complexity analysis

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4 Author(s)
Hilmi, B. ; Dept. of Comput. Eng., SunMoon Univ., Asan, South Korea ; Goswami, K. ; Jong-Hyuk Lee ; Byung-Gyu Kim

To determine the best block mode among the different sizes in H.264/AVC, the rate distortion cost is used as a determining factor. This process requires relatively large amount of computation to encounter all the combinations of different sizes of MBs. In this paper, a new fast inter-mode decision algorithm is proposed in this context. The proposed method reduces the number of candidate modes using direct information from the co-located macroblock(s). A novel motion complexity analysis scheme is also discussed in this paper which is strong enough to categorize different moving objects inside a MB and to make a proper decision for the best candidate mode. Experiment results show that the proposed algorithm can achieve speed-up factor up to 78.70% on average with negligible loss of image quality and quite good bit rate performance.

Published in:

Consumer Electronics (ICCE), 2012 IEEE International Conference on

Date of Conference:

13-16 Jan. 2012