Abstract

Target objects used to construct matched filters for correlator applications are generally recorded on photographic film. Most commercial emulsions of interest are coated on birefringent substrate. The authors address the effects of this birefringence upon the interference pattern recorded as a matched filter in coherent optical correlators. Results are then expanded to include several types of multiple matched filters. Finally, techniques are discussed that reduce the deleterious effects of input film birefringence.

© 1980 Optical Society of America

Aerial reconnaissance film screening using optical matched-filter image-correlator technology

Kenneth G. Leib, Robert A. Bondurant, Stephen Hsiao, Ron Wohlers, and Ron Herold
Appl. Opt. 17(18) 2892-2899 (1978)

Space and wavelength dependence of a dispersion-compensated matched filter

G. M. Morris and Nicholas George
Appl. Opt. 19(22) 3843-3850 (1980)

Construction of a phase-inverting grating and its use in a deblurring filter

R. M. Vasu and G. L. Rogers
Appl. Opt. 19(3) 469-473 (1980)

Rotational matched spatial filter for biological pattern recognition

Hitoshi Fujii, Silverio P. Almeida, and James E. Dowling
Appl. Opt. 19(7) 1190-1195 (1980)

Matched filtering using band-limited illumination

G. M. Morris and Nicholas George
Opt. Lett. 5(5) 202-204 (1980)