We introduce a new phase-restricted algorithm for producing a heterogeneous correlation filter that permits new in-class members to be added without changing the phase of the filter. This heterogeneous correlation filter uses amplitude modulation both to enhance in-class cross correlations and to suppress selected out-of-class correlations. This new algorithm should substantially improve the performance of existing class-associative correlators and improve their operation.
© 2000 Optical Society of America
(070.5010) Fourier optics and signal processing : Pattern recognition
(070.6020) Fourier optics and signal processing : Continuous optical signal processing
(200.4740) Optics in computing : Optical processing
J. Khoury, Peter D. Gianino, and Charles L. Woods, "Phase-restricted heterogeneous correlation," Opt. Lett. 25, 396-398 (2000)