Measures of Circularit for Automatic Inspection Applications

J Illingworth; J Kittler

doi:10.1117/12.966266

19 December 1985 Measures of Circularit for Automatic Inspection Applications

J Illingworth, J Kittler

Proceedings Volume 0557, Automatic Inspection and Measurement; (1985) https://doi.org/10.1117/12.966266
Event: 29th Annual Technical Symposium, 1985, San Diego, United States

Abstract

Many automatic visual inspection applications involve checking circular holes. In this paper four circularity measures based on shape compactness, distribution of radius values, distribution of chord lengths between random border points and the Hough transform are comparatively studied. Properties of the various approaches are investigated over a range of image resolutions which are considered to be pertinent to industrial inspection tasks.

Citation Download Citation

J Illingworth and J Kittler "Measures of Circularit for Automatic Inspection Applications", Proc. SPIE 0557, Automatic Inspection and Measurement, (19 December 1985); https://doi.org/10.1117/12.966266

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