System for registering component image tiles in a camera-based s

Details System for registering component image tiles in a camera-based s System for registering component image tiles in a camera-based s

1996-04-16

1996-12-03

Mancuso, Joseph

Image analysis

Image transformation or preprocessing

Combining image portions

382294, G06K 936

Patent

active

055816371

ABSTRACT:
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.

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Quentin, S-F., "Controlling Computers by Video," First Year Report & Project Proposal, Jul. 23, 1993, Rank Xerox Limited, Cambridge EuroPARC, UK.

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