Patent ID: 6654414
Filing Date: 2003-11-25
Classification: H04N

Abstract:
A method for communicating image data from a source system to a target system comprising the following steps performed at said source system:generating a background environment map, said background environment map comprising a mapping of a panoramic image onto pixels of a three dimensional surface, wherein said background environment map is rendered according to varying positions and fields of view of a camera to provide a view of said panoramic image as seen from different orientations and fields of view; communicating said background environment map to said target system; capturing a source image from a position and field of view of said camera; rendering said background environment map according to said position and field of view of said camera to generate a background image visible for said position and field of view of said camera; generating a difference image representing difference between said source image and said background image; and communicating said difference image and said position and field of view of said camera to said target system.