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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 44, Iss. 22 — Aug. 1, 2005
  • pp: 4745–4752

Three-dimensional shape measurement of non-full-field reflective surfaces

Oleksandr A. Skydan, Michael J. Lalor, and David R. Burton  »View Author Affiliations


Applied Optics, Vol. 44, Issue 22, pp. 4745-4752 (2005)
http://dx.doi.org/10.1364/AO.44.004745


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Abstract

We describe a technique for the measurement of non-full-field reflective surfaces by using phase-stepping profilometry. We explain the principles of phase demodulation and discuss three-dimensional (3-D) height reconstruction in the case of measuring surfaces with reflective properties such as plain glass and mirrored glass. A number of required calibration algorithms are described to obtain surface slopes and reconstructed 3-D heights of the whole surface. Masking for non-full-field objects and the surface reconstruction procedure are demonstrated mathematically and algorithmically. Several experimental results are given for glass with different shapes and defects. Measurement of a spherical mirror with a known radius has also allowed us to show the performance of the proposed technique. This allows for the possibility to compare 3-D data from the known object with data taken from the measurement system.

© 2005 Optical Society of America

OCIS Codes
(070.5010) Fourier optics and signal processing : Pattern recognition
(100.2000) Image processing : Digital image processing
(100.2650) Image processing : Fringe analysis
(100.2960) Image processing : Image analysis
(100.6890) Image processing : Three-dimensional image processing
(120.5050) Instrumentation, measurement, and metrology : Phase measurement

Citation
Oleksandr A. Skydan, Michael J. Lalor, and David R. Burton, "Three-dimensional shape measurement of non-full-field reflective surfaces," Appl. Opt. 44, 4745-4752 (2005)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-44-22-4745


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