Key Technologies On Content Based Video Retrieval And Indexing

With the advance of technology of computer, telecommunication, wide-band network and compression of video and audio, it is not a difficult problem for the store and transmission of video data. Digital video is widely coming into the life of people. It is becoming the emergent and important issues for efficient organization, representation, store and management of video data as well as rapid retrieval and browsing of video data. The traditional data management and retrieval method cannot do better to search the requiring information from the huge amount of video data because of the diversity, complexity of structure of video data as well as temporospatial and multi-dimensional structure of video data. As a result the content-based video retrieval system emerges, as the times require.In this paper, we focus on the MPEG-2 compressed video and content-based video retrieval. A content-based video data model is presented to describe the video data on several levels. The technology of video structure, key frame extraction and video summarization is...