Patent ID: 7103236
Filing Date: 2006-09-05
Classification: G06T

Abstract:
1. A method for shifting a perspective of a composite image derived from a plurality of component images including a first image and a second image, the composite image including derived component images derived from the component images, the derived component images including the first image as a center of projection and a modified version of the second image, the modified version of the second image having been corrected for perspective distortion relative to the first image, the method comprising: receiving an instruction to shift the perspective of the composite image to make the second image the center of projection; determining a transformation for mapping a set of reference points in the modified version of the second image to a corresponding set of reference points in the second image; and applying the transform to each of the plurality of derived component images in the composite image to generate the second image and a plurality of modified component images corrected for perspective distortion relative to the second image, each of the modified component images having the second image as their center of projection, wherein the first image includes a plurality of pixels and has a perimeter that defines a set of vertices; and applying the transform to the first image based on the transformation includes: