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A method for inspecting industrial parts surfaces based on an optics model

  • Special Issue: High Performance Computing for Industrial Visual Inspection
  • Published:
Machine Vision and Applications Aims and scope Submit manuscript

Abstract.

A new method based on an optics model for highly reliable surface inspection of industrial parts has been developed. This method uses multiple images taken under different camera conditions. Phong's model is employed for surface reflection, and then the albedo and the reflection model parameters are estimated by the least squares method. The developed method has advantages over conventional binarization in that it can easily determine the threshold of product acceptability and cope with changes in light intensity when detecting defects.

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Authors and Affiliations

  1. NTT Cyber Space Laboratories, Musashino-shi, Tokyo 180-8585, Japan; e-mail: katafuchi.norifumi@lab.ntt.co.jp, , , , , , JP

    Norifumi Katafuchi & Shuichi Ohara

  2. NTT Cyber Solutions Laboratories, Yokosuka-shi, Kanagawa 239-0847, Japan, , , , , , JP

    Mutsuo Sano

  3. NTT Cyber Solutions Laboratories, Musashino-shi, Tokyo 180-8585, Japan, , , , , , JP

    Masashi Okudaira

Authors
  1. Norifumi Katafuchi
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  2. Mutsuo Sano
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  3. Shuichi Ohara
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  4. Masashi Okudaira
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Katafuchi, N., Sano, M., Ohara, S. et al. A method for inspecting industrial parts surfaces based on an optics model. Machine Vision and Applications 12, 170–176 (2000). https://doi.org/10.1007/s001380050137

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  • DOI: https://doi.org/10.1007/s001380050137

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