Patent ID: 7099521

Claim:
A method for performing real-time correction of a wide-angle image, comprising: obtaining pixel coordinates from the wide-angle image, hereinafter called wide-angle image pixel coordinates; computing a main scaling factor using source curves and target curves; performing vertical scaling using the main scaling factor to scale the wide-angle image pixel coordinates in a vertical direction to obtain vertically-scaled wide-angle image pixel coordinates; performing horizontal scaling using the main scaling factor to scale the vertically-scaled wide-angle image pixel coordinates in a horizontal direction to obtain a preliminary warn table; generating a warp table by applying a parametric image warping function to the pixel coordinates, the warp table containing corrected wide-angle image pixel coordinates representing vertical scaling, horizontal scaling, and horizontal distortion correction of the wide-angle image pixel coordinates; and warping the wide-angle image in real time using the warp table to create a corrected wide-angle image.