Application of ternary phase-amplitude correlation filters to LADAR range images

David L. Flannery; William B. Hahn Jr.; Edward R. Washwell

doi:10.1117/12.21315

1 September 1990 Application of ternary phase-amplitude correlation filters to LADAR range images

David L. Flannery, William B. Hahn Jr., Edward R. Washwell

Proceedings Volume 1297, Hybrid Image and Signal Processing II; (1990) https://doi.org/10.1117/12.21315
Event: 1990 Technical Symposium on Optics, Electro-Optics, and Sensors, 1990, Orlando, FL, United States

Abstract

Ternary Phase-amplitude Filters (TPAFs) used in a real-time hybrid (optical/electronic) correlator system coniprise a promising pattern recognition approach with potential for iiear-term j)ractical applications. Range images obtained from LADAR sensors present unique problems due to their particular signal and noise characteristics. We report computer simulation results of the application of both known and new TPAF formulations to the problem of target recognition on actu al LA DAR. images. Binary input im ages suitable for input using magneto-optic spatial light modulators were gemierated by a simple preprocessing step which seems particularly suitable for these images. Experimental results verifying the simulated smart filter performance are presented. 1.

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David L. Flannery, William B. Hahn Jr., and Edward R. Washwell "Application of ternary phase-amplitude correlation filters to LADAR range images", Proc. SPIE 1297, Hybrid Image and Signal Processing II, (1 September 1990); https://doi.org/10.1117/12.21315

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