High Precision Dimensions and Shape Measurements of Small Objects

Authors

  • V. Smutný
  • V. Hlaváč
  • P. Palatka

Abstract

This paper summarizes the experience with optical gauging of small parts with high accuracy using computer vision technology. The occluding contours of the objects were measured using back illumination. Well known problems of low resolution can be partially overcame by subpixel precision algorithms. The specific problems of high precision measurement (accuracy in range of a few microns) are caused by the presence of dust and fibres on the measured surface and by diffraction and reflection of the light used. First problem can be eliminated by the use of robust methods. The second one can be alleviated by careful design of optics.

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Author Biographies

V. Smutný

V. Hlaváč

P. Palatka

Published

2000-01-03

How to Cite

Smutný, V., Hlaváč, V., & Palatka, P. (2000). High Precision Dimensions and Shape Measurements of Small Objects. Acta Polytechnica, 40(3). Retrieved from https://ojs.cvut.cz/ojs/index.php/ap/article/view/78

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Articles