An Automatic Visual Inspection System For Industrial Printing

Tohru Ozaki; Toshiyuki Gotoh; Takashi Toriu; Masumi Yoshida

doi:10.1117/12.937875

18 May 1987 An Automatic Visual Inspection System For Industrial Printing

Tohru Ozaki, Toshiyuki Gotoh, Takashi Toriu, Masumi Yoshida

Proceedings Volume 0730, Automated Inspection and Measurement; (1987) https://doi.org/10.1117/12.937875
Event: Cambridge Symposium_Intelligent Robotics Systems, 1986, Cambridge, MA, United States

Abstract

We have developed an automatic inspection system for industrial printing applications. This system can discriminate shading unevenness from natural shading gradation of a printed character, and evaluate the degree of any unevenness. The system consists of a host computer, an image memory, an image processing unit, and a numerical processing unit. The image processing unit detects the shading distribution in printed characters input to the image memory. The numerical processing unit quantitatively evaluates any shading unevenness. This system achieves high-speed inspection (0.5 seconds/image) by adopting dedicated hardware and multiple microprocessors.

Citation Download Citation

Tohru Ozaki, Toshiyuki Gotoh, Takashi Toriu, and Masumi Yoshida "An Automatic Visual Inspection System For Industrial Printing", Proc. SPIE 0730, Automated Inspection and Measurement, (18 May 1987); https://doi.org/10.1117/12.937875

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