Patent ID: 8624709
Filing Date: 2014-01-07
Classification: G08B,H04N

Abstract:
1. A computer-implemented method for calibrating at least one camera, the system including at least one camera, the method comprising: displaying a video feed from the at least one camera, the at least one camera having an orientation characterized by pan, zoom, and tilt coordinates; displaying a map of an area, the map being characterized by geospatial coordinates; allowing a user to select at least three pairs of points using at least one input device, a first point of the pair being selected in the map and a second point of the pair being selected from the video feed, the first point and the second point corresponding to the same geographic location; converting, in a computer process, the at least three points selected in the map from geospatial coordinates into Cartesian coordinates in three dimensions defined by a first three-dimensional coordinate system; converting, in a computer process, the at least three points selected in the video feed from pan, zoom, and tilt coordinates into Cartesian coordinates in three dimensions defined by a second three-dimensional coordinate system; and determining, in a computer process, a mathematical rotation between the first three-dimensional coordinate system and the second three-dimensional coordinate system based upon the Cartesian coordinates for the at least three pairs of points.