An Adaptive Algorithm for Fast Block-matching Motion Est imation in H.264
Weirong Chen · Jisuanji yingyong yanjiu · 2005
An adaptive algorithm for fast block-matching motion estimation in H.264 is proposed in this paper. Considering the condition of current reference frame, macroblock’ s segmentation mode, initial search-length, initial predictor candidates and predi ctive median PSAD, this algorithm choose the corresponding search pattern and controllable predictive search criteria. The statistical data of PSAD and SL will be updated after finishing current search in order to improve the veracity of prediction. Extensive simulation results demonstrate that the proposed algorithm can get almost the same image quality but its search speed has improved several times than FS.