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Proceedings Paper

Automatic inspection system for full-color printed matter
Author(s): Shin-Ichi Meguro; Masakatu Nunotani; Katsuyuki Tanimizu; Mutsuo Sano; Akira Ishii
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Paper Abstract

We have developed a full-color inspection system that detects defects such as pin-holes and stains on surface of prepaid cards. The system consists ofa card conveyer unit with an automatic exchange mechanism and a custom designed image processing unit with a three-stage pipeline structure. Inspection performance ofO. 7 seconds/card with a defect detection resolution of 0. 1 5mm diameter is achieved with a new algorithm that reflects human visual criteria.

Paper Details

Date Published: 1 February 1991
PDF: 11 pages
Proc. SPIE 1384, High-Speed Inspection Architectures, Barcoding, and Character Recognition, (1 February 1991); doi: 10.1117/12.25307
Show Author Affiliations
Shin-Ichi Meguro, NTT Integrated Communications Systems Sector (Japan)
Masakatu Nunotani, NTT Integrated Communications Systems Sector (Japan)
Katsuyuki Tanimizu, NTT Human Interface Labs. (Japan)
Mutsuo Sano, NTT Human Interface Labs. (Japan)
Akira Ishii, NTT Affiliated Companies Headquarters (Japan)


Published in SPIE Proceedings Vol. 1384:
High-Speed Inspection Architectures, Barcoding, and Character Recognition
Michael J. W. Chen, Editor(s)

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