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Proceedings Paper

PC-based real-time defect imaging system for high-speed web inspection
Author(s): James W. Roberts; S. D. Rose; Graham A. Jullien; Lee T. Nichols; P. Tom Jenkins; Savvas G. Chamberlain; Gerhard Maroscher; R. Mantha; David J. Litwiller
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Paper Abstract

PC-based inspection systems for wide web materials have been unable to effectively image fine defects as they are detected. The amount of data produced by highly parallel video inspection cameras can exceed 400 MBytes/sec. The system described in this paper is capable of analyzing and displaying a detected image within seconds of the even using a single frame grabber and a 386 computer. The system can operate at processing speeds of greater than 400 MBytes/sec since it makes use of a novel post processing algorithm within the camera itself. The video cameras are based on TDI (Time Delay and Integration) technology to provide high grey scale resolution at high data rates and low light levels. The system has an adjustable resolution ranging from 2000 to 24,000 pixels per line scanned. The scanning rate is adjustable to a maximum of 20,000 line scans per second.

Paper Details

Date Published: 6 May 1993
PDF: 13 pages
Proc. SPIE 1907, Machine Vision Applications in Industrial Inspection, (6 May 1993); doi: 10.1117/12.144808
Show Author Affiliations
James W. Roberts, MVS Motion Vision Systems (Canada)
S. D. Rose, MVS Motion Vision Systems (Canada)
Graham A. Jullien, Univ. of Windsor (Canada)
Lee T. Nichols, E.I. du Pont de Nemours & Co., Inc. (United States)
P. Tom Jenkins, DALSA Inc. (Canada)
Savvas G. Chamberlain, DALSA Inc. (Canada)
Gerhard Maroscher, E.I. du Pont de Nemours & Co., Inc. (United States)
R. Mantha, MVS Motion Vision Systems (Canada)
David J. Litwiller, DALSA Inc. (Canada)

Published in SPIE Proceedings Vol. 1907:
Machine Vision Applications in Industrial Inspection
Frederick Y. Wu; Benjamin M. Dawson, Editor(s)

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