High-speed web inspection using intelligent TDI cameras

James W. Roberts; S. D. Rose; Graham A. Jullien; Lee T. Nichols; P. Tom Jenkins; Savvas G. Chamberlain; Gerhard Maroscher

doi:10.1117/12.150281

6 August 1993 High-speed web inspection using intelligent TDI cameras

James W. Roberts, S. D. Rose, Graham A. Jullien, Lee T. Nichols, P. Tom Jenkins, Savvas G. Chamberlain, Gerhard Maroscher

Author Affiliations +

Proceedings Volume 2064, Machine Vision Applications, Architectures, and Systems Integration II; (1993) https://doi.org/10.1117/12.150281
Event: Optical Tools for Manufacturing and Advanced Automation, 1993, Boston, MA, United States

Abstract

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 event 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 256 to 24,000 pixels per line scanned. The scanning rate is adjustable to a maximum of 20,000 lines scans per second.

Citation Download Citation

James W. Roberts, S. D. Rose, Graham A. Jullien, Lee T. Nichols, P. Tom Jenkins, Savvas G. Chamberlain, and Gerhard Maroscher "High-speed web inspection using intelligent TDI cameras", Proc. SPIE 2064, Machine Vision Applications, Architectures, and Systems Integration II, (6 August 1993); https://doi.org/10.1117/12.150281

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