Novel intermode decision algorithm in H.264/AVC

作者：Shen, Liquan^*; Liu, Zhi; Zhang, Zhaoyang; Wang, Leirui; Wang, Guozhong

来源：Journal of Electronic Imaging, 2008, 17(1): 013006.

DOI：10.1117/1.2841715

• SEARCH

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 x 4 block from the initial test of the inter-16 X 16 and the texture characteristic. Simulation results show that ourproposed algorithm can save about 46% in computational complexity, with negligible loss of coding efficiency.

• 出版日期2008-3
• 单位上海大学