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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 38, Iss. 22 — Aug. 1, 1999
  • pp: 4760–4765

Three-dimensional object recognition by Fourier transform profilometry

José J. Esteve-Taboada, David Mas, and Javier García  »View Author Affiliations


Applied Optics, Vol. 38, Issue 22, pp. 4760-4765 (1999)
http://dx.doi.org/10.1364/AO.38.004760


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Abstract

An automatic method for three-dimensional (3-D) shape recognition is proposed. It combines the Fourier transform profilometry technique with a real-time recognition setup such as the joint transform correlator (JTC). A grating is projected onto the object surface resulting in a distorted grating pattern. Since this pattern carries information about the depth and the shape of the object, their comparison provides a method for recognizing 3-D objects in real time. A two-cycle JTC is used for this purpose. Experimental results demonstrate the theory and show the utility of the new proposed method.

© 1999 Optical Society of America

OCIS Codes
(100.4550) Image processing : Correlators
(100.6890) Image processing : Three-dimensional image processing

History
Original Manuscript: January 7, 1999
Revised Manuscript: April 15, 1999
Published: August 1, 1999

Citation
José J. Esteve-Taboada, David Mas, and Javier García, "Three-dimensional object recognition by Fourier transform profilometry," Appl. Opt. 38, 4760-4765 (1999)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-38-22-4760


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