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Proceedings Paper

Design of circular coded target and its application to optical 3D-measurement
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Paper Abstract

The coded target design is geometrically constructed only of circular elements, i.e. circular marked point, circular reference point and circular coding points. Marked point is surrounded by a reference point and some coding points with bit position at equally spaced angular interval. The circular radius of the reference point is bigger than that of coding points. Marked point represents the point location itself. Reference point provides a start bit for coding points. Coding points provide robust identification of the target anti-clockwise, starting from reference point. The design method provides a sufficient number of identification points by introducing a reference point. Finally, the application of the proposed coded targets to 3D data registration is described. Experimental results show that the developed coded targets are independent to location, rotation and change of scale, and the marked points are easily and accurately detected.

Paper Details

Date Published: 31 December 2008
PDF: 6 pages
Proc. SPIE 7130, Fourth International Symposium on Precision Mechanical Measurements, 71303H (31 December 2008); doi: 10.1117/12.819684
Show Author Affiliations
Jiandong Han, Beijing Univ. of Posts and Telecommunications (China)
Beijing Information Science and Technology Univ. (China)
Naiguang Lu, Beijing Information Science and Technology Univ. (China)
Beijing Univ. of Posts and Telecommunications (China)
Mingli Dong, Beijing Information Science and Technology Univ. (China)
Beijing Institute of Technology (China)


Published in SPIE Proceedings Vol. 7130:
Fourth International Symposium on Precision Mechanical Measurements
Yetai Fei; Kuang-Chao Fan; Rongsheng Lu, Editor(s)

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