Patent ID: 8279283
Filing Date: 2012-10-02
Classification: G06T,G08B

Abstract:
1. A video surveillance system comprising: a plurality of video cameras, each comprising a field of view, said cameras configured to at least one of zoom for changing the camera field of view, and tilt for rotating the camera about a horizontal tilt axis, and pan for rotating the camera about a vertical pan axis; and a processor configured to: determine a spatial grid of a location of the first video camera and the second video camera relative to each other camera of the plurality of video cameras based on the calibration target to first video camera angle and the calibration target to second video camera angle; and refining the spatial grid, wherein refining the spatial grid includes: registering a first image of the calibration target captured by the first video camera; registering a second image of the calibration target captured by the second video; and iteratively increasing a zoom factor of the first image and the second image to refine a relative position.