中国物理B ›› 2011, Vol. 20 ›› Issue (1): 14203-014203.doi: 10.1088/1674-1056/20/1/014203

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A corrected method of distorted printed circuit board image

叶玉堂1, 黄永林1, 乔闹生2   

  1. (1)School of Optoelectronic Information, University of Electronic Science and Technology of China, Chengdu 610054, China; (2)School of Optoelectronic Information, University of Electronic Science and Technology of China, Chengdu 610054, China;School of Physics and Electronics, Hunan University of Arts and Science, Changde 415000, China
  • 收稿日期:2010-04-11 修回日期:2010-06-03 出版日期:2011-01-15 发布日期:2011-01-15
  • 基金资助:
    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).

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)   

  1. 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
  • Received:2010-04-11 Revised:2010-06-03 Online:2011-01-15 Published:2011-01-15
  • Supported by:
    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).

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摘要： 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.

关键词: distortion correction, adaptive control, printed circuit board image, mean square error of residual error

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.

Key words: distortion correction, adaptive control, printed circuit board image, mean square error of residual error

中图分类号:  (Imaging and optical processing)

  • 42.30.-d
42.30.Va (Image forming and processing)