LU Jiyuan, ZHANG Peizhao, CHAO Hongyang. A Fast Fractional Pixel Motion Estimation for H.264 KTA[J]. Journal of Image and Graphics, 2010, 15(3): 367. DOI: 10.11834/jig.20100302.
H.264 KTA increases the coding performance at the cost of high computational complexity.Its adoption of adaptive interpolation filter(AIF)and 1/8 pixel MV resolution causes that fractional pixel motion estimation(FPME)exerts more significant influence on the computational complexity of video coding.In this paper,we propose an algorithm to speedup FPME by using uni-model characteristics and the MV correlation of fractional pixel motion compensation.According to experiments,our algorithm achieves much higher speed than other fast FPME algorithms with neglectable R-D lost compared with F帧/s algorithm.