Fast algorithm of fractional-pixel motion estimation in HEVC
YU Deng-cha · Journal of Hefei University of Technology · 2014
In this paper,a new fast fractional-pixel motion estimation search algorithm is proposed,which makes full use of eight neighboring integer-pixel points around the optimal integer-pixel point.This algorithm models the error surface in fractional-pixel position by quadratic surface function with five parameters two times to get two fractional-pixel candidate points,and the final point is obtained by weighting these points.The experimental results show that the proposed method can reduce the complexity and improve the coding efficiency greatly with negligible quality degradation.