A Fast Search Algorithm for AVS Encoding Based on Sub-pixel Motion Vectors
Bin Wen · Video Engineering · 2011
This paper presents a fast motion vector search algorithm based on sub-pixel motion vectors for AVS video encoding.In this proposed algorithm,the integer-pixel points are used to predict the region,and a two-step search algorithm is adopted to find out the best matching sub-pixel positions.The experimental results show that compared with traditional methods,this algorithm can reduce the search steps of sub-pixel more than 50%,and lessen encoding time by 18%~30% on condition that the change of PSNR is less than 0.1 dB.