The image subpixel-precise measurement of holes in mechanical part based on computer vision

Fu-Cheng You; Yong-Bin Zhang; Yan Wang

doi:10.1117/12.866049

19 August 2010 The image subpixel-precise measurement of holes in mechanical part based on computer vision

Fu-Cheng You, Yong-Bin Zhang, Yan Wang

Author Affiliations +

Proceedings Volume 7820, International Conference on Image Processing and Pattern Recognition in Industrial Engineering; 782017 (2010) https://doi.org/10.1117/12.866049
Event: International Conference on Image Processing and Pattern Recognition in Industrial Engineering, 2010, Xi'an, China

Abstract

The measurement method of mechanical part based on computer vision is a new trend with high accuracy, high speed and automation, which plays a very important role in machining industry. In this paper, a new measurement method of circular hole of mechanical part is proposed based on the subpixel-precise thresholding and contour extraction. Under the base of the new measurement method, a computer vision system is designed to measure the position of hole, diameter of hole, circularity of hole, and the distance between relevant two holes with high speed, high efficiency and subpixel-precise. Good results have been got in the measurement experiment, which proves the validity of the new measurement method.

Citation Download Citation

Fu-Cheng You, Yong-Bin Zhang, and Yan Wang "The image subpixel-precise measurement of holes in mechanical part based on computer vision", Proc. SPIE 7820, International Conference on Image Processing and Pattern Recognition in Industrial Engineering, 782017 (19 August 2010); https://doi.org/10.1117/12.866049

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