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Proceedings Paper

Thermal vision measurement based on mapping transform
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Paper Abstract

An active vision detection technology based on laser target is proposed in this paper for measuring the dimensions of thermal train wheels in workshop. A mapping transorm of histogram is used to restrain thermal background and extrude the laser target, therefore, it is necessary to search the transform threshold value. The color weights of the image background are analysed. A contrast of the laser targe stripe and a recognized error are pursued to a best threshold for image mapping transform. The experiments prove that the useful information of the laser target image is extruded and the recognized errors caused by the mapping transorm are less than 0.04 pixel. A theoretical foundation is set up for the laser target pick-up correctly and other image processing expediently.

Paper Details

Date Published: 13 October 2006
PDF: 6 pages
Proc. SPIE 6280, Third International Symposium on Precision Mechanical Measurements, 62803P (13 October 2006); doi: 10.1117/12.716327
Show Author Affiliations
Yongyue Yang, Hefei Univ. of Technology (China)
Shanxi Deng, Hefei Univ. of Technology (China)

Published in SPIE Proceedings Vol. 6280:
Third International Symposium on Precision Mechanical Measurements
Kuang-Chao Fan; Wei Gao; Xiaofen Yu; Wenhao Huang; Penghao Hu, Editor(s)

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