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A corrected method of distorted printed circuit board image |
Qiao Nao-Sheng(乔闹生)a)b)†,Ye Yu-Tang(叶玉堂)a),and Huang Yong-Lin(黄永林)a) |
a School of Optoelectronic Information, University of Electronic Science and Technology of China, Chengdu 610054, China; b School of Physics and Electronics, Hunan University of Arts and Science, Changde 415000, China |
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Abstract This paper proposes a corrected method of distorted image based on adaptive control. First, the adaptive control relationship of pixel point positions between distorted image and its corrected image is given by using polynomial fitting, thus control point pairs between the distorted image and its corrected image are found. Secondly, the value of both image distortion centre and polynomial coefficient is obtained with least square method, thus the relationship of each control point pairs is deduced. In the course of distortion image processing, the gray value of the corrected image is changed into integer with bilinear interpolation. Finally, the experiments are performed to correct two distorted printed circuit board images. The results are perfect and the mean square errors of residual error are tiny.
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Received: 11 April 2010
Revised: 03 June 2010
Accepted manuscript online:
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PACS:
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42.30.-d
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(Imaging and optical processing)
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42.30.Va
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(Image forming and processing)
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Fund: Project supported by the Research Foundation of the State Key Laboratory, China (Grant No. 9140C1406020708), the Program Research Foundation of Hunan Province Science-Technology Department, China (Grant No. 2009FJ3187), the 11th Five Year Plan for Key Construction Academic Subject (Optics) of Hunan Province, China (Grant No. 06GXCD02). |
Cite this article:
Qiao Nao-Sheng(乔闹生), Ye Yu-Tang(叶玉堂), and Huang Yong-Lin(黄永林) A corrected method of distorted printed circuit board image 2011 Chin. Phys. B 20 014203
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