THREE-DIMENSIONAL SENSING

Application of improved phase-measuring profilometry in nonconstant environmental light

[+] Author Affiliations
Wan-Song Li, Xian-Yu Su

Sichuan University, Opto-Electronics Department, Chengdu, China, 610064

Opt. Eng. 40(3), 478-485 (Mar 01, 2001). doi:10.1117/1.1349212
History: Received May 5, 2000; Revised Sep. 11, 2000; Accepted Sep. 11, 2000
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The accuracy of phase-measuring profilometry is greatly influenced by environmental light, especially outdoors. The errors caused by changes of the environmental light are analyzed, and some simulated fringe patterns are processed. A new calibration algorithm, which performs intensity background and fringe amplitude transformations, is proposed. Theoretical analysis and experimental results verify that the improved phase-measuring profilometry is insensitive to the change of environmental light. © 2001 Society of Photo-Optical Instrumentation Engineers.

© 2001 Society of Photo-Optical Instrumentation Engineers

Citation

Wan-Song Li and Xian-Yu Su
"Application of improved phase-measuring profilometry in nonconstant environmental light", Opt. Eng. 40(3), 478-485 (Mar 01, 2001). ; http://dx.doi.org/10.1117/1.1349212


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