Jablonowski D P, Lee S H
Appl Opt. 1973 Jul 1;12(7):1703-12. doi: 10.1364/AO.12.001703.
A study has been made on restoration of degraded images utilizing spatial filtering techniques in a coherent optical processor. This study differs from other coherent approaches in that the spatial filters employed contain only composite gratings that are quite simple to produce. A general method of synthesizing the appropriate composite gratings for the linearly smeared as well as multiply exposed and out-offocus images will be presented in some detail with experimental results. The extension of the method of synthesis to other types of degradation will be briefly discussed. in Appendix A.
