Limited rotation-invariant pattern recognition using optical wavelet circular harmonic function minimum average correlation energy (MACE) filter

Ha-Woon Lee; Jeong-Woo Kim; Cheol Su Kim; Soo-Joong Kim

doi:10.1117/12.205435

6 April 1995 Limited rotation-invariant pattern recognition using optical wavelet circular harmonic function minimum average correlation energy (MACE) filter

Ha-Woon Lee, Jeong-Woo Kim, Cheol Su Kim, Soo-Joong Kim

Author Affiliations +

Proceedings Volume 2491, Wavelet Applications II; (1995) https://doi.org/10.1117/12.205435
Event: SPIE's 1995 Symposium on OE/Aerospace Sensing and Dual Use Photonics, 1995, Orlando, FL, United States

Abstract

The optical wavelet circular harmonic function minimum average correlation energy (WCHF- MACE) filter is proposed. The proposed WCHF-MACE filter uses the wavelet transformed image by Mexican-hat wavelet function for circular harmonic function and the multiple harmonic components of circular harmonic function are used for MACE filter synthesis. The proposed filter has good discrimination compared with the conventional circular harmonic function filter and conventional circular harmonic MACE filter about the limited rotated images. And the filter is made of the type of optical wavelet matched filter (WMF), so that the proposed filter can use the conventional 4f correlator.

Citation Download Citation

Ha-Woon Lee, Jeong-Woo Kim, Cheol Su Kim, and Soo-Joong Kim "Limited rotation-invariant pattern recognition using optical wavelet circular harmonic function minimum average correlation energy (MACE) filter", Proc. SPIE 2491, Wavelet Applications II, (6 April 1995); https://doi.org/10.1117/12.205435

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