Residual prediction based fast fractional pixel motion estimation in low bit-rate video coding
Hou Fang · Computer Engineering and Applications Journal · 2010
This paper proposes a fast fractional pixel motion estimation method for low bit-rate video coding.It uses both spatial and temporal correlations of neighbouring blocks to predict the optimal cost.After this prediction,the search is terminated while the current cost is close enough to the predicted cost.According to the experiments,the proposed algorithm not only produces good R-D performance in 16×16 block mode but also has the maximum number of search positions less than 6 while the traditional method has 16 for several common used test sequences.Furthermore,in other smaller block modes the proposed algorithm can achieve much higher speed at a neglectable R-D lost.