Mixing Motion Search Algorithm Based on H.264
Liang Chen · Video Engineering · 2010
In order to reduce the time of motion estimation in H.264,a mixing motion search algorithm is proposed,using rectangular window,big diamond window and small hexagon window.First,rectangular window is used to do initial search.If the best matching point is in the center,using small hexagon window to do the final search,else using the best matching point at the front step as the central point to structure a big diamond window,and doing the further search.If the best matching point is in the center,using this central point to structure a small hexagon window,else repeating this step.The experimental results indicate that this method could effectively decrease the average points of motion search and increase the coding efficiency.Meanwhile,it can keep better quality of coding.