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Proceedings Paper

Image detection of inner wall surface of holes in metal sheets through polarization using a 3D TV monitor
Author(s): Takamasa Suzuki; Katsunori Nakano; Shogo Muramatsu; Toshiro Oitate
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Paper Abstract

We propose an effective technique for optically detecting images of the inner hole-surface of a hole (hereafter, referred to as the hole-surface) using the polarization property of a 3D television (TV) monitor. The polarized light emitted by the TV monitor illuminates the hole-surfaces present in the test target placed on the screen of the monitor. When the polarizer placed in front of a camera lens is adjusted such that the camera captures a dark image for the transmitted light, only the highlighted hole-surfaces are visible in the captured image.

Paper Details

Date Published: 20 November 2012
PDF: 6 pages
Proc. SPIE 8563, Optical Metrology and Inspection for Industrial Applications II, 85630Q (20 November 2012); doi: 10.1117/12.999726
Show Author Affiliations
Takamasa Suzuki, Niigata Univ. (Japan)
Katsunori Nakano, Niigata Univ. (Japan)
Shogo Muramatsu, Niigata Univ. (Japan)
Toshiro Oitate, Totsuka Metal Industry Co., Ltd. (Japan)

Published in SPIE Proceedings Vol. 8563:
Optical Metrology and Inspection for Industrial Applications II
Kevin G. Harding; Peisen S. Huang; Toru Yoshizawa, Editor(s)

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