Fast ME Algorithm Based on IBM's CELL Nine Cores Processor
Fang Xiang-zhon · Microcomputer Information · 2009
In order to explore the data level parallelism in CELL BE's SIMD technique, this paper introduces a new fast motion estimation algorithm, which can achieve much better prediction accuracy and lower computational complexity compared with Diamond Search (DS) algorithm. Most of the conventional fast motion estimation algorithms just focus on reducing the number of search points. The introduced method uses a large rectangular search pattern at the first search step. Through increasing search points, it gains 4.32% coding efficiency compared with DS. It needs 29.5% less computation than DS method on CELL BE. We also optimize the mode judgment of inter and intra, and the intra part can be reduced from 11% to 3%.