一种改进的快速H.264/AVC帧内预测Pan算法

对基于边缘方向直方图的快速帧内预测Pan算法进行了改进，应用了帧内Intra_4×4和Intra_16×16块类型选择以及4×4亮度块模式选择提前中止技术。实验结果表明,该方法在保证图像失真度和码率性能的前提下,单帧编码时间较Pan算法减少了29.093%，较大幅度地加快了帧内模式决策速度。

Improved Pan algorithm for fast intraprediction in H.264/AVC video coding

Fast Intraprediction Pan algorithm based on edge directional histogram was improved in this paper. The block type selection method (Intra_4×4 and Intra_16×16) and early termination technology for 4×4 luma block mode decision were employed. Experimental results show that the one-frame scramble time of fast intrapredicton algorithm, compared with Pan algorithm, is reduced by 29.093% with negligible loss of peak signal-to-noise ratio.