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在媒体资产管理系统中,编目总体上分为四个层次,分别是节目层、片段层、场景层、镜头层。要进行镜头层的编目首先要实现视频序列的镜头分割。视频序列的镜头分割亦称镜头变化检测是视频检索中的关键技术之一。镜头分割是视频处理的第一步,是随后的高层内容分析、分类、索引和查询的基础。镜头分割的准确性直接影响到后续处理的效果。本文对视频图像在压缩域和非压缩域中等镜头边缘检测方法进行了综述。
In the media asset management system, cataloging is generally divided into four levels, namely program layer, fragment layer, scene layer and lens layer. The first layer to be shot at the camera layer to achieve the video sequence of the lens segmentation. Video sequence of the lens segmentation Also known as the lens change detection is one of the key technologies in video retrieval. Shot segmentation is the first step in video processing and the basis for subsequent high-level content analysis, classification, indexing and querying. The accuracy of the lens segmentation directly affects the effect of subsequent processing. In this paper, we summarize the video edge detection methods in compressed and uncompressed domains.