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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Vol. 2, Iss. 9 — Sep. 10, 2005
  • pp: 528–530

The method to evaluate the position error in graphic positioning technology

Huiqing Lu, Baoguang Wang, Lishuang Liu, and Yabiao Li  »View Author Affiliations


Chinese Optics Letters, Vol. 2, Issue 9, pp. 528-530 (2005)


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Abstract

In the measurement of automobile body-in-white, it has been widely studied to position the two-dimensional (2D) visual sensors with high precision. In this paper a graphic positioning method is proposed, a hollow tetrahedron is used for a positioning target to replace all the edges of a standard automobile body. A 2D visual sensor can be positioned through adjusting two triangles to be superposed on a screen of the computer, so it is very important to evaluate the superposition precision of the two triangles. Several methods are discussed and the least square method is adopted at last, it makes the adjustment more easy and intuitive with high precision.

© 2005 Chinese Optics Letters

OCIS Codes
(040.1520) Detectors : CCD, charge-coupled device
(080.2720) Geometric optics : Mathematical methods (general)
(110.1650) Imaging systems : Coherence imaging
(130.6010) Integrated optics : Sensors

Citation
Huiqing Lu, Baoguang Wang, Lishuang Liu, and Yabiao Li, "The method to evaluate the position error in graphic positioning technology," Chin. Opt. Lett. 2, 528-530 (2005)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-2-9-528


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References

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  2. B. G. Wang, Z. H. He, L. C. Chen, and Y. Ni, Acta Optica Sinica (in Chinese) 22, 481 (2002).
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  4. B. G. Wang and M. Z. Zhu, Chin. J. Mechanical Engineering 10, 136 (1997).
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