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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 22 — Oct. 27, 2008
  • pp: 17148–17153

Three-dimensional object recognition using a quasi-correlator invariant to imaging distances

Natan T. Shaked, Gideon Segev, and Joseph Rosen  »View Author Affiliations

Optics Express, Vol. 16, Issue 22, pp. 17148-17153 (2008)

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We present a new method for performing electro-optical three-dimensional (3-D) object recognition under incoherent white-light illumination. Perspective projections of the 3-D scene are acquired from multiple points of view and then processed into a single complex two-dimensional modified Fresnel hologram of the scene. This hologram is processed with a single filter which is matched to a single object, so that all identical objects in the scene yield similar correlation peaks in the 3-D space with almost no dependency on the distances of the objects from the acquisition plane. The new method is demonstrated by experiments.

© 2008 Optical Society of America

OCIS Codes
(070.4550) Fourier optics and signal processing : Correlators
(070.5010) Fourier optics and signal processing : Pattern recognition
(070.6110) Fourier optics and signal processing : Spatial filtering
(100.6890) Image processing : Three-dimensional image processing
(100.3005) Image processing : Image recognition devices
(100.3008) Image processing : Image recognition, algorithms and filters

ToC Category:
Fourier optics and signal processing

Original Manuscript: July 8, 2008
Revised Manuscript: August 31, 2008
Manuscript Accepted: August 31, 2008
Published: October 13, 2008

Natan T. Shaked, Gideon Segev, and Joseph Rosen, "Three-dimensional object recognition using a quasi-correlator invariant to imaging distances," Opt. Express 16, 17148-17153 (2008)

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