Complexity Reduction in Block Mode Determination for H.264
Peng Liu, Tomonori Aikawa, Satoshi Miyaji, Liang Zhao, Hideo Yamamoto · 2004
Abstract: This paper considers the “variable block size” feature in H.264. Based on experimental observations, we give a simple algorithm to reduce the coding complexity. To get the coding efficiency and reduce the complexity at the same time, it is applied only to blocks that have small estimated cost value. We show that the proposed algorithm can reduce the coding time by up to 40 % with the same picture quality and only 10 % increase of the bitrate.