An MPEG-7 compatible video retrieval system with support for semantic queries

In this paper, we design and implement a distributed video retrieval system with support for semantic queries named XUNET. It firstly uses a self-made video semantic processing tool, which is based on a video analysis tool and added with semantic graph annotation and natural language processing functions, to parse videos and generate corresponding MPEG-7 description files. Subsequently, it establishes distributed index of the MPEG-7 files and distributed storage of video files separately. The system provides numerous web query interfaces, including keywords semantic expansion query, semantic graph query and natural language query, when clients' query intentions have been submitted, specific interested videos or segments will be quickly exhibited through web browsing or VOD as query results. Because of adopting a distributed architecture, XUNET is highly scalable and supports mass video information index and retrieval.