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Proceedings Paper

A subpixel edge detection algorithm for the high precision automatic alignment system
Author(s): Yuning Zhong; Qinghua Lv; Liangen Yang; Yingwu Xue
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Paper Abstract

A new sub-pixel edge detection algorithm has been presented in this paper, which can be used in some high precision automatic alignment systems, such as automatic industrial measurement systems; integrate circuit encapsulation systems, micro-electromechanical systems, micro-optical electromechanical systems, three-dimensional encapsulation systems and so on. This algorithm uses the spatial moment to detect the location of edge within sub-pixel resolutions, and gains an advantage over the traditional pixel edge detection algorithms. Moreover, an extraction technology of region of interest is applied to reduce the time of analysis after rough pose estimation.

Paper Details

Date Published: 13 October 2006
PDF: 7 pages
Proc. SPIE 6280, Third International Symposium on Precision Mechanical Measurements, 62802T (13 October 2006); doi: 10.1117/12.716300
Show Author Affiliations
Yuning Zhong, Hubei Univ. of Technology (China)
Qinghua Lv, Hubei Univ. of Technology (China)
Liangen Yang, Hubei Univ. of Technology (China)
Yingwu Xue, Hubei Univ. of Technology (China)


Published in SPIE Proceedings Vol. 6280:
Third International Symposium on Precision Mechanical Measurements
Kuang-Chao Fan; Wei Gao; Xiaofen Yu; Wenhao Huang; Penghao Hu, Editor(s)

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