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Proceedings Paper

A method for recognizing of concentric circles characteristic parameters based on Gaussian sub-pixel edge detection
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Paper Abstract

Before using a series of concentric circles as the target, the target needs to be pre-processed to get characteristic parameters. This paper discusses a new method based on Gaussian sub-pixel to detect the edge of concentric circles, and get the coordinate of the center and radius of concentric circles based on the cross ratio invariability with five points which leads to more stable data. In the end, Levenberg-Marquard algorithm is used to approach the results. To verify the results, two methods are used both in the hands of experiment and simulation. These two results illustrate that the method we discusses have advantages on the accuracy.

Paper Details

Date Published: 7 August 2015
PDF: 11 pages
Proc. SPIE 9623, 2015 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems, 96231E (7 August 2015); doi: 10.1117/12.2193563
Show Author Affiliations
Mingnuo Shang, Tianjin Univ. (China)
Changjie Liu, Tianjin Univ. (China)
Luhua Fu, Tianjin Univ. (China)


Published in SPIE Proceedings Vol. 9623:
2015 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems
Jigui Zhu; Hwa-Yaw Tam; Kexin Xu; Hai Xiao; Sen Han, Editor(s)

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