Video surveillance system
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Abstract
Viewing a three dimensional area from numerous camera angles at different exposures using intensity and chromaticity data at the different exposures to create a pixel model for each pixel. A current image is compared with the background model to find pixels that have changed from their pixel model. These novel pixels are processed using contiguous region detection and grouped into foreground figures. For each camera, software extracts features from each foreground figure. A central processor maintains an object model for each foreground figure. A graphical user interface displays the relative location of foreground figures in a world model. The location and identification of the foreground figures is checked against a table of permissions so as to selectively generate an alert. If a figure leaves or is about the leave a cell, the invention accounts for its approximate position and notifies adjacent cells of the expected arrival of the foreground figure.
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Citations
90 Claims
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1-80. -80. (canceled)
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81. A video surveillance systems comprising:
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a first camera station comprising one or more cameras;
a second camera station comprising one or more cameras;
a first region, a first camera station and the second camera station each providing at least one camera to survey said first region;
a third camera station comprising one or more cameras;
a fourth camera station comprising one or more cameras;
a second region, the third camera station and the fourth camera station each providing at least one camera to survey said second region;
a control unit, the control unit tracking a figure as it exits the first region and enters the second region, the control unit updating an object mode in a world model to reflect the change in regions. - View Dependent Claims (82, 83, 84, 85, 86, 87, 88, 89, 90)
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Specification