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Optics Letters

Optics Letters


  • Vol. 26, Iss. 15 — Aug. 1, 2001
  • pp: 1161–1163

Three-dimensional object recognition by use of a photorefractive volume holographic processor

Seung-Ho Shin and Bahram Javidi  »View Author Affiliations

Optics Letters, Vol. 26, Issue 15, pp. 1161-1163 (2001)

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We present a photorefractive volume holographic processor for recognition of three-dimensional (3D) objects. The templates are recorded by use of a volume hologram in a photorefractive LiNbO3:Fe crystal located at the Fresnel diffraction region and correlated in real time with a 3D object illuminated by coherent light. Experimental results for recognition of 3D objects are presented and discussed. To the best of our knowledge, this is the first time a photorefractive volume holographic technique for 3D object recognition has been reported.

© 2001 Optical Society of America

OCIS Codes
(090.7330) Holography : Volume gratings
(100.4550) Image processing : Correlators
(100.5010) Image processing : Pattern recognition
(100.6890) Image processing : Three-dimensional image processing
(160.5320) Materials : Photorefractive materials
(210.2860) Optical data storage : Holographic and volume memories

Seung-Ho Shin and Bahram Javidi, "Three-dimensional object recognition by use of a photorefractive volume holographic processor," Opt. Lett. 26, 1161-1163 (2001)

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