Patent ID: 7418156

Claim:
A method for determining a domain of definition (DOD) in a warped image, the warped image formed from an original image, each pixel of the warped image having a displacement from a corresponding pixel in the original image, the original image unrestricted by a border, the method comprising: determining an original DOD associated with the original image, the original DOD comprising a region of the original image with a boundary surrounding useful information, the boundary having a plurality of edges corresponding to a plurality of directions; for each pixel located on the plurality of edges of the original DOD: determining a location of a corresponding pixel in the warped image; and determining a displacement of the pixel in the warped image from its corresponding pixel in the original image; for each of the plurality of edges, determining a maximal displacement value of a pixel on the edge in the direction corresponding to the edge; and determining a new DOD for the warped image, the new DOD for the warped image corresponding to a DOD in the original image, each edge of the new DOD displaced in the direction and by the determined maximal displacement value corresponding to the edge of the original DOD.