摘要
非对称十字形多层次六边形格点搜索(UMHexagonS)是AVS视频编码中优秀的搜索算法,但仍然存在计算量大的缺点。为了降低运算量,提高编码效率,针对AVS编码器选用已编码的两帧做为参考帧,提出了一种新的变换菱形搜索(DIA)算法。实验表明,采用优化后的算法在保证视频质量的前提下,编码速度得到明显提高。
DIA is a good search algorithm in AVS video coding, but there are still shortcomings of computation-intensive. In order to reduce the amount of computation to improve the coding efficiency, a new diamond search algorithm is proposed aimed at two frames have been encoded as reference frames for AVS encoder. The experiments show that encoding speed is improved significantly with the optimized algorithm in the premise of ensuring the quality of video.
出处
《机械工程与自动化》
2013年第2期13-15,共3页
Mechanical Engineering & Automation
