OSA's Digital Library

Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 13 — Jun. 20, 2011
  • pp: 12594–12604

Parallel lensless optical correlator based on two phase-only spatial light modulators

Xu Zeng, Takashi Inoue, Norihiro Fukuchi, and Jian Bai  »View Author Affiliations


Optics Express, Vol. 19, Issue 13, pp. 12594-12604 (2011)
http://dx.doi.org/10.1364/OE.19.012594


View Full Text Article

Enhanced HTML    Acrobat PDF (1183 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

In this paper, we proposed a parallel phase-only lensless optical correlator based on two pieces of Liquid Crystal on Silicon Spatial Light Modulators. Phase Fresnel Lens Array and specialized grating are implemented to realize multi-channel and multiplexed LOC. Experimental results of Chinese characters’ recognitions are given as demonstration of proposed technique. High uniformity of processing channels has been verified by autocorrelation process of four same Chinese characters. The technique is programmable and adjustment of optical path could be realized without changing of optical setup. The implementations could be performed on the same configuration as single channel optical correlator without mechanical alternation.

© 2011 OSA

OCIS Codes
(070.4550) Fourier optics and signal processing : Correlators
(070.5010) Fourier optics and signal processing : Pattern recognition
(200.4960) Optics in computing : Parallel processing
(230.6120) Optical devices : Spatial light modulators

ToC Category:
Fourier Optics and Signal Processing

History
Original Manuscript: April 20, 2011
Revised Manuscript: May 25, 2011
Manuscript Accepted: June 2, 2011
Published: June 14, 2011

Citation
Xu Zeng, Takashi Inoue, Norihiro Fukuchi, and Jian Bai, "Parallel lensless optical correlator based on two phase-only spatial light modulators," Opt. Express 19, 12594-12604 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-13-12594


Sort:  Author  |  Year  |  Journal  |  Reset  

References

  1. F. T. S. Yu and X. J. Lu, “Real-time optical scanning correlator,” Appl. Opt. 23(18), 3109–3116 (1984). [CrossRef] [PubMed]
  2. F. T. S. Yu and M. S. Dymek, “Optical information parallel processing: a technique,” Appl. Opt. 20(8), 1450–1453 (1981). [CrossRef] [PubMed]
  3. D. A. Gregory and H. K. Liu, “Large-memory real-time multichannel multiplexed pattern recognition,” Appl. Opt. 23(24), 4560–4570 (1984). [CrossRef] [PubMed]
  4. H. K. Liu and J. G. Duthie, “Real-time screen-aided multiple-image optical holographic matched-filter correlator,” Appl. Opt. 21(18), 3278–3286 (1982). [CrossRef] [PubMed]
  5. T. H. Chao and H. K. Liu, “Real-time optical holographic tracking of multiple objects,” Appl. Opt. 28(2), 226–231 (1989). [CrossRef] [PubMed]
  6. S. K. Case, “Pattern recognition with wavelength-multiplexed filters,” Appl. Opt. 18(12), 1890–1894 (1979). [CrossRef] [PubMed]
  7. T. H. Chao and M. Chen, “Pattern recognition with a wavelength-angle multiplexed optical scanning correlator,” Opt. Eng. 25, 828–833 (1986).
  8. C. F. Hester and D. Casasent, “Multivariant technique for multiclass pattern recognition,” Appl. Opt. 19(11), 1758–1761 (1980). [CrossRef] [PubMed]
  9. G. F. Schils and D. W. Sweeney, “Rotationally invariant correlation filtering for multiple images,” J. Opt. Soc. Am. A 3(7), 902–908 (1986). [CrossRef]
  10. M. Villarreal, C. Iemmi, and J. Campos, “Parallel classification of multiple objects using a phase-only multichannel optical correlator,” Opt. Eng. 42(8), 2354–2361 (2003). [CrossRef]
  11. N. Fukuchi, T. Inoue, H. Toyoda, and T. Hara, “Lensless Vanderlugt optical correlator using two phase-only spatial light modulators,” Chin. Opt. Lett. 7(12), 1131–1133 (2009). [CrossRef]
  12. X. Zeng, J. Bai, C. Hou, and G. Yang, “Compact optical correlator based on one phase-only spatial light modulator,” Opt. Lett. 36(8), 1383–1385 (2011). [CrossRef] [PubMed]
  13. R. W. Gerchberg and W. O. Saxton, “A practical algorithm for the determination of the phase from image and diffraction plane pictures,” Optik (Stuttg.) 35, 227–246 (1972).

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.


« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited