• Chinese Optics Letters
  • Vol. 2, Issue 9, 09528 (2004)
Huiqing Lu, Baoguang Wang, Lishuang Liu, and Yabiao Li
Author Affiliations
  • State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin 300072
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    Huiqing Lu, Baoguang Wang, Lishuang Liu, Yabiao Li. The method to evaluate the position error in graphic positioning technology[J]. Chinese Optics Letters, 2004, 2(9): 09528 Copy Citation Text show less

    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.
    Huiqing Lu, Baoguang Wang, Lishuang Liu, Yabiao Li. The method to evaluate the position error in graphic positioning technology[J]. Chinese Optics Letters, 2004, 2(9): 09528
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