05581637 is referenced by 112 patents and cites 10 patents.

A device for registering component image tiles in a scanning system for transcribing, into electronic form, markings on a two-dimensional surface such as a whiteboard. A registration light pattern is projected onto the surface to be imaged. The pattern projected can be chosen to best suite the specific properties of the camera and imaging environment. The pattern markings are processed using perspective transformations to determine the overlap properties of the image tiles and distortion of each tile image, and the resulting data is used to combine the tiles to produce an undistorted composite image of the whiteboard.

Title
System for registering component image tiles in a camera-based scanner device transcribing scene images
Application Number
353654
Publication Number
5581637
Application Date
April 16, 1996
Publication Date
December 3, 1996
Inventor
Eric Saund
San Carlos
CA, US
Todd A Cass
San Francisco
CA, US
Agent
Tracy L Hurt
R Christine Jacobs
Assignee
Xerox Corporation
CT, US
IPC
G06K 9/36
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