Fast Inter-Mode Decision Algorithm in H.264
BI Du-yan · Video Engineering · 2009
In this paper,the theory of variable block-size motion compensation in H.264 is given and the property of temporal correlation in successive frames and spatial correlation in neighboring macroblocks is analyzed at first.Then a novel fast mode decision algorithm based on spatiotemporal correlation is presented.The results of simulation test show that the proposed fast mode decision strategy can highly improve the efficiency of real time H.264 encoder while maintaining video coding quality.The method can save the encoding time up to 65% on average with -0.31dB performance degradation.