Device for transcribing images on a board using a camera based b

Details Device for transcribing images on a board using a camera based b Device for transcribing images on a board using a camera based b

1994-09-09

1996-06-18

Greening, Wendy

Television

Camera, system and detail

Unitary image formed by compiling sub-areas of same scene

382284, H04N 5225

Patent

active

055282903

ABSTRACT:
A device for transcribing, into electronic form, markings drawn on a whiteboard or blackboard. An electronic camera such as an ordinary video camera is mounted on a computer-controlled pan/tilt head in the ceiling or to the side of the board. Images are captured by directing the camera successively at small regions of the board, then processing these snapshots electronically, leading to a complete, undistorted, high-resolution image of the entire board.

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patent: 5298697 (1994-03-01), Suzuki et al.
patent: 5331435 (1994-07-01), Scott
patent: 5353058 (1994-10-01), Takei
Szeliski, R., "Image Mosaicing for Tele-Reality Applications," Digital Equipment Corporation, Cambridge Research Lab., CRL 94/2, May, 1994.
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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