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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 18, Iss. 20 — Oct. 15, 1993
  • pp: 1745–1747

Time-multiplexed optical Hadamard image transforms with ferroelectric-liquid-crystal-over-silicon spatial light modulators

J. Gourlay, P. McOwan, D. G. Vass, I. Underwood, and M. Worboys  »View Author Affiliations


Optics Letters, Vol. 18, Issue 20, pp. 1745-1747 (1993)
http://dx.doi.org/10.1364/OL.18.001745


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Abstract

The Hadamard transform is an example of a matrix transform that allows images to be represented in terms of orthogonal basis functions with binary-valued matrix elements. Such basis functions can be displayed on binary amplitude modulating ferroelectric-liquid-crystal-over-silicon spatial light modulators, permitting novel, real-time, and high-speed implementation of the transform on incoherently illuminated input scenes. An example of an optical Hadamard transform performed in real time by using a spatial light modulator is described. To show the validity of this optical decomposition, we electronically reconstruct the transformation data for comparison with the original input scene.

© 1993 Optical Society of America

History
Original Manuscript: May 18, 1993
Published: October 15, 1993

Citation
J. Gourlay, I. Underwood, M. Worboys, P. McOwan, and D. G. Vass, "Time-multiplexed optical Hadamard image transforms with ferroelectric-liquid-crystal-over-silicon spatial light modulators," Opt. Lett. 18, 1745-1747 (1993)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-18-20-1745

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