Adaptive Diamond Search Motion Estimation Algorithm Based on Motion Classification Information of Blocks
Feng Wang · Jisuanji gongcheng · 2007
By studying the spatial-temporal correlation and the center-biased characteristics of motion vectors in image sequences,this paperimproves traditional diamond search(DS) algorithm,designs an adaptive large diamond search pattern(ALDSP),and presents an adaptive diamondsearch motion estimation algorithm based on motion classification information of blocks.ALDSP adaptively chooses different search methods withmotion classification information of blocks.For fast moved block,it predicts initial search point and uses different search methods according toblocks of different relative motion.Experiments prove that the algorithm can improve the search speed in contrast to motion vector field adaptivesearch technology(MVFAST),when video quality is better.