Improved 2x2 pixel computer-generated holographic matched filters for spatial light modulators

Alain Bergeron; Gilbert V. April; Henri H. Arsenault

doi:10.1117/12.17946

1 May 1990 Improved 2x2 pixel computer-generated holographic matched filters for spatial light modulators

Alain Bergeron, Gilbert V. April, Henri H. Arsenault

Proceedings Volume 1211, Computer and Optically Formed Holographic Optics; (1990) https://doi.org/10.1117/12.17946
Event: OE/LASE '90, 1990, Los Angeles, CA, United States

Abstract

An improved computer-generated hologram recording technique for 12x128-pixel binary spatial light modulators is presented. The method is based on a diagonal coding previously introduced, but instead of using 4x4 supercells as in the previous case, the size of the supercell has been reduced to 2x2 pixels. Experimental results from computer simulations show that high-speed rotation-invariant recognition of simple shapes is possible with such holograms.

Citation Download Citation

Alain Bergeron, Gilbert V. April, and Henri H. Arsenault "Improved 2x2 pixel computer-generated holographic matched filters for spatial light modulators", Proc. SPIE 1211, Computer and Optically Formed Holographic Optics, (1 May 1990); https://doi.org/10.1117/12.17946

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