A Fast Intra Prediction Algorithm Based on Texture Analysis
Jinhong Li · Jisuanji fangzhen · 2009
H.264 is the newest video coding standard and intra prediction is an important part of it.The reference program from JVT(Joint Video Team)uses the full search algorithm for intra prediction which is an algorithm with high complexity and is not fit for real-time video.To reduce the complexity of Intra prediction algorithm and improve the efficiency of coding by using textural features extracted from gray-tone spatial-dependence matrix and its inverse difference moment to predict the plainness and texture direction of macroblock,a new fast intra prediction algorithm is proposed.Experience results based on the reference program JM13.2 show that the proposed fast algorithm can achieve remarkable computation reduction while maintaining similar PSNR and bit rate performance contrast with full search algorithm.