Fast mode decision algorithm for H.264 based on early termination method
H.264快速模式选择算法中的提前终止策略

To simplify the computational complexity in mode selection process for H.264,a fast mode decision algorithm is proposed in this paper.According to the statistical rule of the best mode chosen by inter frame,the relationship of the temporal and spatial characteristics with the best mode is found. At each stage of inter mode selection,the temporal and spatial characteristics of macroblock(MB) are detected,once the residual homogeneous or spatial homogeneous conditions are satisfied,the mode selection process is terminated.Experimental results show that this method can make the encoding speed accelerate about 23.11% and peak signal to noise ratio(PSNR) improve about 0.058dB,with only 2.11% increase about bit rate.