A Practical Method for Circular Hole Measurement Based on Machine Vision

Abstract:

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Non-contact Measurement of circular hole, which based on machine vision is already used for industrial applications. In this paper, a novel practical method to obtain parameters of a circular hole from an image is presented. The main idea of the proposed method is that we use gradient information to find a region that contains possible centers of the circle (the hole) and use evidence-collecting process to obtain the reasonable radius. This method fits the situation that the hole object in a image is totally brighter or darker than its background. Experimental results demonstrate that our method can detect the hole with the acceptable precision and stability for practical applications.

Info:

Periodical:

Advanced Materials Research (Volumes 317-319)

Edited by:

Xin Chen

Pages:

837-842

DOI:

10.4028/www.scientific.net/AMR.317-319.837

Citation:

Y. Jin et al., "A Practical Method for Circular Hole Measurement Based on Machine Vision", Advanced Materials Research, Vols. 317-319, pp. 837-842, 2011

Online since:

August 2011

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Price:

$35.00

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