摘要
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。
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.
出处
《计算机应用》
CSCD
北大核心
2006年第10期2383-2385,共3页
journal of Computer Applications
