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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

  • Vol. 15, Iss. 7 — Jul. 1, 1998
  • pp: 1777–1786

Range estimation by optical differentiation

Hany Farid and Eero P. Simoncelli  »View Author Affiliations


JOSA A, Vol. 15, Issue 7, pp. 1777-1786 (1998)
http://dx.doi.org/10.1364/JOSAA.15.001777


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Abstract

We describe a novel formulation of the range recovery problem based on computation of the differential variation in image intensities with respect to changes in camera position. This method uses a single stationary camera and a pair of calibrated optical masks to measure this differential quantity directly. We also describe a variant based on changes in aperture size. The subsequent computation of the range image involves simple arithmetic operations and is suitable for real-time implementation. We present the theory of this technique and show results from a prototype camera that we have constructed.

© 1998 Optical Society of America

OCIS Codes
(110.0110) Imaging systems : Imaging systems
(150.5670) Machine vision : Range finding
(150.6910) Machine vision : Three-dimensional sensing

History
Original Manuscript: September 22, 1997
Revised Manuscript: February 25, 1998
Manuscript Accepted: January 28, 1998
Published: July 1, 1998

Citation
Hany Farid and Eero P. Simoncelli, "Range estimation by optical differentiation," J. Opt. Soc. Am. A 15, 1777-1786 (1998)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-15-7-1777

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