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LASER PROFILES

Nonlinear calibration of a laser stripe profiler

[+] Author Affiliations
Alan M. McIvor

Reveal Limited, P.O. Box 5907, Wellesley Street, Auckland, New Zealand E-mail: alan.mcivor@reveal.co.nz

Opt. Eng. 41(1), 205-212 (Jan 01, 2002). doi:10.1117/1.1416694
History: Received Jan. 31, 2000; Revised June 25, 2001; Accepted June 28, 2001
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The calibration of a laser stripe profiler consisting of a laser stripe projector, camera, and linear motion table is considered. A nonlinear system model is used, which accommodates radial distortion in the camera lens. The way in which stripe data is extracted from the camera images leads to a natural formulation of the calibration problem as a nonlinear least squares problem. This can then be solved using standard techniques. The use of this nonlinear model reduces the error in the generated 3-D data by over an order of magnitude. © 2002 Society of Photo-Optical Instrumentation Engineers.

© 2002 Society of Photo-Optical Instrumentation Engineers

Citation

Alan M. McIvor
"Nonlinear calibration of a laser stripe profiler", Opt. Eng. 41(1), 205-212 (Jan 01, 2002). ; http://dx.doi.org/10.1117/1.1416694


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