An optical setup to obtain all the fractional correlations of a one-dimensional input in a single display is implemented. The system works as a multichannel parallel correlator for a continuous set of fractional orders and presents a variable shift variance. Some experimental results together with computer simulations are performed to illustrate the performance of our proposal.
© 2001 Optical Society of America
(070.0070) Fourier optics and signal processing : Fourier optics and signal processing
(070.2590) Fourier optics and signal processing : ABCD transforms
(100.5010) Image processing : Pattern recognition
Sergio Granieri, Myrian Tebaldi, and Walter D. Furlan, "Parallel Fractional Correlation: An Optical Implementation," Appl. Opt. 40, 6439-6444 (2001)