Appeal No. 2001-0518
Application No. 08/745,524
image and a representation of the background panoramic image based on the
environmental map (specification, page 11, lines 9-10). During conferencing the source
system communicates said difference image and said position and field of view of said
camera to said target system. Accordingly, the target system renders said background
environment map according to said position and field of view of said camera to thereby
generate a background image visible for said position and field of view of said camera.
The following claim further illustrates the invention.
1. 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.
The examiner relies on the following references:
Ueno et al. (Ueno) 4,951,140 Aug. 21, 1990
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