14 March 2005 WCAM: smart encoding for wireless surveillance
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Proceedings Volume 5685, Image and Video Communications and Processing 2005; (2005); doi: 10.1117/12.585468
Event: Electronic Imaging 2005, 2005, San Jose, California, United States
Abstract
In this paper, we present an integrated system for smart encoding in video surveillance. This system, developed within the European IST WCAM project, aims at defining an optimized JPEG 2000 codestream organization directly based on the semantic content of the video surveillance analysis module. The proposed system produces a fully compliant Motion JPEG 2000 stream that contains regions of interest (typically mobile objects) data in a separate layer than regions of less interest (e.g. static background). First the system performs a real-time unsupervised segmentation of mobiles in each frame of the video. The smart encoding module uses these regions of interest maps in order to construct a Motion JPEG 2000 codestream that allows an optimized rendering of the video surveillance stream in low bandwidth wireless applications, allocating more quality to mobiles than for the background. Our integrated system improves the coding representation of the video content without data overhead. It can also be used in applications requiring selective scrambling of regions of interest as well as for any other application dealing with regions of interest.
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Jerome Meessen, C. Parisot, C. Le Barz, Didier Nicholson, Jean-Francois Delaigle, "WCAM: smart encoding for wireless surveillance", Proc. SPIE 5685, Image and Video Communications and Processing 2005, (14 March 2005); doi: 10.1117/12.585468; http://dx.doi.org/10.1117/12.585468
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KEYWORDS
Video surveillance

Video

Image segmentation

Image compression

Computer programming

Video compression

Image quality

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