Ground exploitation using a binary phase-only optical correlator

Samuel Peter Kozaitis; Sandra L. Halby; Wesley E. Foor

doi:10.1117/12.23418

27 December 1990 Ground exploitation using a binary phase-only optical correlator

Samuel Peter Kozaitis, Sandra L. Halby, Wesley E. Foor

Proceedings Volume 1347, Optical Information Processing Systems and Architectures II; (1990) https://doi.org/10.1117/12.23418
Event: 34th Annual International Technical Symposium on Optical and Optoelectronic Applied Science and Engineering, 1990, San Diego, CA, United States

Abstract

Experimental results of an optical binary phase-only correlator using aerial imagery for ground exploitation is presented. The correlator uses magnetooptic spatial light modulators (SLMs) for dynamic operation. Input images to the correlator originate from actual aerial imagery containing aircraft and a variety of distortions. Digital image processing techniques are used on images before being input into the optical correlator to enhance the performance of the system. Filters or templates used as a database for the system are derived from models of aircraft. Rotation and scale invariance is achieved through an adaptive filtering technique in which filters are displayed sequentially against an input image. Experimental results are presented which show that the system performs well with different types of segmented images.

Citation Download Citation

Samuel Peter Kozaitis, Sandra L. Halby, and Wesley E. Foor "Ground exploitation using a binary phase-only optical correlator", Proc. SPIE 1347, Optical Information Processing Systems and Architectures II, (27 December 1990); https://doi.org/10.1117/12.23418

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