Improving Three Step Search Algorithm According to Central Preference of Motion Vectors
Xiangzhong Fang · Computer Engineering and Applications Journal · 2006
The purpose of motion estimation in video encoding is to search the best fitness of the block with little residue.As the ME only performs well with the displacement parallel to the image plane,which usually happens proximately at the points near the center of search window,the nature of this central bias property should fully be considered in ME process.The paper proposes an improved algorithm of the Three Step Search based on the above opinion.The experiment results have proved its efficiency.