基于预测性菱形搜索法的快速去隔行技术

A Fast De-Interlacing Technique Based on Predictive Diamond Search Method

提出了一种基于运动估计和运动补偿的去隔行 (隔行变逐行 )新方法。该方法首先使用预测性菱形搜索块匹配法 (PDSBM)计算出稳定和精确的运动矢量场 ,然后通过对视频序列的多假设运动补偿分析来实现隔行到逐行的插值 ,再对所得到的视频序列进行运动补偿滤波 ,进一步消除了水平边缘的影响 ,充分考虑了场间和场内视频序列的空间和时间相关性。仿真结果表明 ,该方法能够得到比其它几种常用的去隔行算法更好的效果。

A new high?efficiency de?interlacing method based on predictive diamond search is presented. Multi?hypothesis motion compensation is made to realize de?interlacing by an additional motion detection function where, depending on the motion of a pixel, spatial and temporal information is fully considered. By motion compensation filtering including median filtering and low-pass filtering, performance is further improved. Extensive simulations demonstrate the efficiency of the algorithm, especially when it is compared with standard de?interlacing techniques such as edge?based line average algorithm.\;