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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 13, Iss. 7 — Jul. 1, 1988
  • pp: 586–588

Real-time optical image subtraction using dynamic holographic interference in photorefractive media

Pochi Yeh, Tallis Y. Chang, and Paul H. Beckwith  »View Author Affiliations


Optics Letters, Vol. 13, Issue 7, pp. 586-588 (1988)
http://dx.doi.org/10.1364/OL.13.000586


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Abstract

A method of optical image subtraction is proposed. It provides parallel and real-time amplitude subtraction of two images by using holographic interference in photorefractive media. This new method provides an automatic phase shift of 180 deg between the two images and may be viewed as a real-time implementation of Gabor’s image-subtraction technique. Some experimental results are presented and discussed.

© 1988 Optical Society of America

History
Original Manuscript: March 1, 1988
Manuscript Accepted: April 24, 1988
Published: July 1, 1988

Citation
Pochi Yeh, Tallis Y. Chang, and Paul H. Beckwith, "Real-time optical image subtraction using dynamic holographic interference in photorefractive media," Opt. Lett. 13, 586-588 (1988)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-13-7-586

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