Patent ID: 7471849

Claim:
A method comprising: providing a first-perspective composite image, the first-perspective composite image being a composite of a plurality of first-perspective component images, the plurality of first-perspective component images including an original first image and a first-perspective second image, the original first image being a center of projection of the first-perspective composite image, the first-perspective second image having been corrected for perspective distortion relative to the original first image; receiving an instruction to shift the perspective of the first-perspective composite image to make an original second image the center of projection of a second-perspective composite image; determining a perspective transformation for mapping a set of reference points in the first-perspective second image to a corresponding set of reference points in the original second image; and applying the perspective transform to each of the plurality of first-perspective component images in the first-perspective composite image to generate the second-perspective composite image, including applying the perspective transform to the first-perspective second image to generate the original second image and applying the perspective transform to each other first-perspective component image of the plurality of first-perspective component images to generate respective second-perspective component images, the second-perspective component images being corrected for perspective distortion relative to the original second image, and each of the second-perspective component images having the original second image as their center of projection.