Fast Subpixel Motion Estimation Algorithm for AVS
Wei Liu · Jisuanji gongcheng · 2010
In order to obtain excellent picture and higher compression efficency, quarter pixel motion compensation is applied in AVS. But full search algorithm for subpixel in AVS has great amount of computation, and that results in very low efficency of the total encoder. Aiming at this problem, this paper proposes a new fast subpixel motion estimation algorithm, which can achieve up to 53.0%～76.5% searching points reduction and save 23%～33% of the video sequence’s total encoding time while maintaining the quality of the picture.