Complicated global motion estimation based on sequence image difference correlative block
LI Zai-ming · Guangdian gongcheng · 2007
A new motion estimation algorithm on difference correlative block was introduced.The algorithm avoided the mistake of matching by choosing the area of big gradient in the images to ensure the precision.And,this algorithm integrated the parameter and non-parameter estimation to extend the applicable range of block matching,and made the effective estimation of complicated global motion possible.The theoretical analysis and experimental results demonstrate that this algorithm can deal with complicated global motion effectively,including zoom,rotation motion.Furthermore,global motion is disassembled into basis motion,and the adaptive system can choose optimal algorithm according to limitation of operation burden.