Novel intermode decision algorithm in H.264/AVC

Liquan Shen; Zhi Liu; Zhao-Yang Zhang; Leirui Wang; Guozhong Wang

doi:10.1117/1.2841715

1 January 2008 Novel intermode decision algorithm in H.264/AVC

Liquan Shen, Zhi Liu, Zhao-Yang Zhang, Leirui Wang, Guozhong Wang

Author Affiliations +

Journal of Electronic Imaging, Vol. 17, Issue 1, 013006 (January 2008). https://doi.org/10.1117/1.2841715

Abstract

H.264/AVC employs variable-size motion compensation with multiple reference frames that can significantly improve the coding performance compared with the previous video coding standards. However, the computational complexity of the H.264/AVC encoder increases dramatically due to the various size modes used. One of the most challenging problems in implementing this encoder is mode decision. We propose a novel intermode decision algorithm (NIMDA) to reduce the candidate mode set, which utilizes two basic elements, the sum absolute difference (SAD) of each 4×4 block from the initial test of the inter-16×16 and the texture characteristic. Simulation results show that our proposed algorithm can save about 46% in computational complexity, with negligible loss of coding efficiency.

©(2008) Society of Photo-Optical Instrumentation Engineers (SPIE)

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Liquan Shen, Zhi Liu, Zhao-Yang Zhang, Leirui Wang, and Guozhong Wang "Novel intermode decision algorithm in H.264/AVC," Journal of Electronic Imaging 17(1), 013006 (1 January 2008). https://doi.org/10.1117/1.2841715

Published: 1 January 2008

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