DP-based extraction of global motion feature point
Wei Wang · Hebei Sheng Kexueyuan xuebao · 2007
It is the key for MPEG-4 sprite coding to extract of global motion feature point accurately.Against the flaws such as high mathematical cost,low precision and easy to fall into local extremum etc.,a new method of extracting global motion feature point based on dynamic programming is put forward.This method,to a great extent,can decrease the influence of noise and reduce the number of superfluous point.Consequently,it can improve the efficiency of global motion estimation and make it possible to apply it in real-time.