Accurate and Fast Block Matching Algorithm
Chen Ji · Jisuanji gongcheng · 2008
In order to improve the search accuracy performance of motion estimation based on block,this paper researches the block matching algorithm,brings forward a new matching algorithm named the minimum Sum Of Absolute Different Differences(SADD). Based on SAD,the algorithm SADD takes advantage of the relativity in the adjacent differences inside one block,adopts the difference operation in a certain order to remove the redundancy,which enables the algorithm SADD to describe the similarity between two blocks much more accurately. Simulation result shows that this algorithm can reduce the bitrate effectively and improve the PSNR performance well. And it can be adapted to kinds of video sequences.