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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Editor: Franco Gori
  • Vol. 27, Iss. 5 — May. 1, 2010
  • pp: 1127–1136

Photometric stereo with gradated extended sources for recovery of specular surfaces

G. McGunnigle  »View Author Affiliations


JOSA A, Vol. 27, Issue 5, pp. 1127-1136 (2010)
http://dx.doi.org/10.1364/JOSAA.27.001127


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Abstract

A photometric stereo technique is proposed that uses four extended sources and specular reflection to estimate surface topography. It is shown that if the intensity of incident light is weighted according to its zenith angle, then the radiance of surface facets will vary linearly with their slope. A simple system that approximates this lighting distribution is demonstrated. It is shown that surface slope in the range [ 0.5 , 0.5 ] can be recovered to within a multiplicative constant.

© 2010 Optical Society of America

OCIS Codes
(150.6910) Machine vision : Three-dimensional sensing
(150.2945) Machine vision : Illumination design

ToC Category:
Machine Vision

History
Original Manuscript: October 5, 2009
Revised Manuscript: January 18, 2010
Manuscript Accepted: February 25, 2010
Published: April 27, 2010

Citation
G. McGunnigle, "Photometric stereo with gradated extended sources for recovery of specular surfaces," J. Opt. Soc. Am. A 27, 1127-1136 (2010)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-27-5-1127

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Supplementary Material


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