Computer-generated hologram for rotation-invariant pattern recognition

Ching-Piao Hu; Smile Yeh

doi:10.1117/12.17943

1 May 1990 Computer-generated hologram for rotation-invariant pattern recognition

Ching-Piao Hu, Smile Yeh

Proceedings Volume 1211, Computer and Optically Formed Holographic Optics; (1990) https://doi.org/10.1117/12.17943
Event: OE/LASE '90, 1990, Los Angeles, CA, United States

Abstract

A traditional MSF only possesses the discriminating ability of shift invariance of patterns when it is used for pattern recognition and can't recognize patterns with rotation. To overcome this problem, a target pattern was replaced by one of its circular harmonic components when we select the reference pattern, i.e., the MSF should be made from the conjugate of the Fourier spectrum of its circular harmonic components.

Citation Download Citation

Ching-Piao Hu and Smile Yeh "Computer-generated hologram for rotation-invariant pattern recognition", Proc. SPIE 1211, Computer and Optically Formed Holographic Optics, (1 May 1990); https://doi.org/10.1117/12.17943

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