数字视频特技镜头转换检测算法的分析

Analysis of Digital Video Effect Shot Transition Detection Algorithm

随着数字设备在视频制作中的广泛应用,数字特技(DVE)也越来越多地被用于镜头转换,这就要求视频检索能有效地对DVE镜头转换进行检测.通过对DVE镜头转换的模型和特性的分析,指出了目前基于二维时空图处理算法的局限性,进而提出了一种基于转换曲面的DVE检测算法以解决这个问题.并对在实际DVE视频上的镜头检测结果进行了分析,取得了很好的结果.

With the popularity of digital equipment in video producing, digital video effect (DVE) is more and more frequently used in shot transitions, so that the demand of DVE transition detection is proposed for the video indexing and retrieval system. The limitation of the exiting 2-D spatial-temporal image analysis methods is pointed out through the analysis of DVE transition model, and a transition-surface-based DVE detection method is proposed. Basic thoughts and the implementation of this method are detailed, as well as the experimental result and analysis.