Patent ID: 8564643
Filing Date: 2013-10-22
Classification: G01C,G06T

Abstract:
1. A method of adapting an existing georeferencing-enabled camera model derived for a given camera view of a single security surveillance camera, to a new camera view of the single security surveillance camera, such existing georeferencing-enabled camera model relating image pixel-coordinates of the given camera view to rays in three-dimensional space, relative to a virtual camera point, such method comprising the steps of: for alignment of the given camera view with the new camera view, such minimum of two located landmarks comprising a first located landmark and a second located landmark; landmark and the second located landmark, such ray equations outputting two respective rays; georeferencing-enabled camera model, by a sphere of arbitrary radius and centered on the virtual camera point to yield a first ray-end point and a second ray-end point respectively located at the end of each such two rays; the given view; point in the new camera view, the second intersecting sphere-set comprising three corresponding spheres respectively centered on the two corresponding ray-end points and the virtual camera point, wherein each corresponding sphere of the second intersecting sphere-set comprise radii equal to the respective spheres of the first intersecting sphere-set;