A fast H.264 intra mode decision algorithm based on the spatial correlation
Qizhi Teng · Journal of Sichuan University · 2007
After a simple analysis of the intra prediction mode decision algorithm in H.264,a new fast intra mode decision algorithm is presented in this paper based on the spatial correlation in video data.The spatial adjacent coding block's best mode is utilized to obtain the intra prediction of current coding block and the refresh technique is applied to reduce the error.The number of prediction modes and the algorithm complexity are reduced effectively.The experiment results show that the coding time of the new algorithm can be reduced by above 50% with little degradation in the coding gain.