Patent ID: 7573475

Claim:
A method of identifying an absence of image information when generating a complementary stereoscopic image pair, the method comprising: projecting at least a portion of a first 2D image comprising image information onto computer-generated geometry from a first camera having a first viewing frustum at a first camera location; designating a second camera having a second viewing frustum at a second camera location, wherein the second viewing frustum includes at least a portion of the computer-generated geometry; determining depth values associated with the image information in the first viewing frustum and in the second viewing frustum, wherein each of the depth values indicates a distance between one of the cameras and a point in the projected first 2D image in the viewing frustum for the associated camera; and identifying an absence of valid image information in a stereoscopic image corresponding to the first 2D image by comparing the depth values for corresponding points of the projected first 2D image in the first and second viewing frustums.