Optical implementation of the complex Gabor-wavelet filter based on the Gaussian chirplet transform approach

摘要

A 2D complex Gabor-wavelet filter (CGWF) optical architecture based on the proposed Gaussian chirpletntransform approach is presented together with its mathematical derivation. Far from the conventional setupnschemes in which only the real part of the CGWF (even-symmetrical GWF) can be implemented optically,nthe proposed optical scheme shows that the real and also the imaginary part of the CGWF (odd-symmetricalnGWF) can be achieved. The computer application simulations to the oriented edge feature extraction arengiven to validate the feasibility of the proposed scheme. © 2009 Optical Society of America