摘要： 多模式运动估计使H.264比其他视频编码算法具有更高的编码效率，但同时也使计算复杂度明显提升。该文提出了一种新的适用于H.264的快速模式选择算法。此算法提前对块的细节程度和纹理方向进行分析，根据块细节程度缩小模式选择的范围，并根据块纹理方向对模式进行进一步筛选，从而大大提高了模式搜索速度，将性能损失控制在可以忽略的范围内。仿真实验的结果证明了本算法的有效性。
关键词:
视频编码,
H.264,
模式选择
Abstract: H. 264 video coding standard introduces motion estimation with multiple block sizes to achieve a considerably higher coding efficiency than other video coding algorithms. This comes at the greatly increased computing complexity at the encoder. A method is proposed to eliminate some redundant coding modes that contribute very little coding gain based on analysis of macroblock detail-level and texture directions. The simulation results show that the algorithm can remarkably decrease the complexity at the encoder while keeping satisfying coding efficiency.
Key words:
Video coding,
H.264,
Mode selection
中图分类号:
周 维;陆 璐. 一种新型H.264快速模式选择算法的研究[J]. 计算机工程, 2007, 33(08): 210-212.
ZHOU Wei; LU Lu. Researh on Efficient Inter Mode Selection Approach for H.264[J]. Computer Engineering, 2007, 33(08): 210-212.