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Proceedings Paper

New algorithm to calculate the center of laser reflections
Author(s): Daoshan Yang; Jihong Chen; Huicheng Zhou; Shawn Buckley
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Paper Abstract

One of the main problems in machine vision inspection systems which use the triangulation of structured light is improving the accuracy of the laser light centroid algorithm. This paper presents a new and practical way to calculate the center of reflection of structured laser light. Reflection from a laser light line has a normal distribution of light intensity. Traditional algorithms ignore the influence of specular reflecting light and assume the laser light line intensity is not a normal distribution. The new algorithm considers this situation and gives more weight to the central sampling values when calculating the center of the reflected laserlight. Experiments verify that this algorithm is more robust and accurate than traditional algorithms.

Paper Details

Date Published: 2 February 1998
PDF: 5 pages
Proc. SPIE 3306, Machine Vision Applications in Industrial Inspection VI, (2 February 1998); doi: 10.1117/12.301245
Show Author Affiliations
Daoshan Yang, Huazhong Univ. of Science and Technology (China)
Jihong Chen, Huazhong Univ. of Science and Technology (China)
Huicheng Zhou, Huazhong Univ. of Science and Technology (China)
Shawn Buckley, CAItech Inc. (United States)


Published in SPIE Proceedings Vol. 3306:
Machine Vision Applications in Industrial Inspection VI
A. Ravishankar Rao; Ning S. Chang, Editor(s)

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