document: An audio\/video analysis mechanism for web indexing The high availability of video streams is making necessary mechanisms for indexing such contents in the Web world . In this paper we focus on news programs and we propose a mechanism that integrates low and high level video features to provide a high level semantic description . A color\/luminance analysis is coupled with audio analysis to provide a better identification of all the video segments that compose the video stream . Each video segment is subject to speech detection and is described through MPEG7 so that the resulting metadata description can be used to index the video stream . An experimental evaluation shows the benefits of integrating audio and video analysis .
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