A Fast Motion Estimation Search Algorithm with Adjustable Predictive Quality

This paper presents a fast motion estimation search algorithm with adjustable predictive quality.Taking advantage of the spatial and temporal correlation of motion vectors,motion estimation of the algorithm is realized by predicting initial search center location,analyzing whether a silent macroblock or not,adjusting windows size,and using progressive block matching measure of adjustable predictive quality,and at the same time,introducing adjustable function to add controllability between predictive quality and searching speed.Experimental results show that the algorithm can reduce computation amount significantly,increase computing speed greatly,provide good reconstructed video quality,and be applied for low bit rate video encoding.