1992•Optical EngineeringRequires access
Optical wavelet transform
Yunlong Sheng, Danny Roberge, Harold H Szu
Open publisher page 114 citations
Abstract
The wavelet transform is implemented using an optical multichannel correlator with a bank of wavelet transform filters. This approach provides a shift-invariant wavelet transform with continuous translation and discrete dilation parameters. The wavelet transform filters can be in many cases simply optical transmittance masks. Experimental results show detection of the frequency transition of the input signal by the optical wavelet transform.