New algorithm to calculate the center of laser reflections

Daoshan Yang; Jihong Chen; Huicheng Zhou; Shawn Buckley

doi:10.1117/12.301245

2 February 1998 New algorithm to calculate the center of laser reflections

Daoshan Yang, Jihong Chen, Huicheng Zhou, Shawn Buckley

Proceedings Volume 3306, Machine Vision Applications in Industrial Inspection VI; (1998) https://doi.org/10.1117/12.301245
Event: Photonics West '98 Electronic Imaging, 1998, San Jose, CA, United States

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.

Citation Download Citation

Daoshan Yang, Jihong Chen, Huicheng Zhou, and Shawn Buckley "New algorithm to calculate the center of laser reflections", Proc. SPIE 3306, Machine Vision Applications in Industrial Inspection VI, (2 February 1998); https://doi.org/10.1117/12.301245

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