摘要
基于内容检索技术的出现为信息检索领域的发展指明了方向,分析了最大匹配和最优匹配的特征,前者仅从视觉的角度反映了两个镜头的相似性,后者则在最大匹配的基础上从客观全面的角度反映了镜头内容的相似特征,但是最优匹配算法忽视了视频内容时间顺序性。提出了一种改进的最优匹配算法,实验结果表明,算法在查全率和查准率方面均能够获得较为理想的结果。
The content-based retrieval shows a right direction for information retrieval, The features of maximum matching and optimal matching are analyzed, the former reflects the visual similarity of the two lenses only from the perspective of, and the latter objectively and fully reflects the similar characteristics of the lens contents on the basis of maximum matching, but the most optimal matching algorithm ignores the time sequence of video content. This paper presents an improved optimal matching algorithm, and the experimental results show the algorithm can obtain more ideal results in the recall and precision rates.
出处
《计算机与网络》
2011年第17期59-62,共4页
Computer & Network
关键词
视频检索
最大匹配
最优匹配
video retrieval
maximum matching
optimal matching
