Real-Time Spatial Modulators For Optical/Digital Processing Systems

Donald S. Oliver

doi:10.1117/12.955651

22 November 1977 Real-Time Spatial Modulators For Optical/Digital Processing Systems

Donald S. Oliver

Proceedings Volume 0117, Data Extraction and Classification from Film; (1977) https://doi.org/10.1117/12.955651
Event: 21st Annual Technical Symposium, 1977, San Diego, United States

Abstract

The real-time functional features of optically addressed electro-optical spatial modulators such as the Pockels Readout Optical Modulator (PROM) are described and applied to hybrid optical/digital processing of photographic information. The current and predicted performance of developed hardware and R&D devices for optical image sampling, incoherent-to-coherent conversion, stored image manipulation and computer-controlled Fourier plane filtering are presented. The utility in image exploitation of adjusting the dynamic range of a stored image under interactive computer control to effect background suppression, optical density level contouring, image inversion, spatial filtering and edge enhancement is illustrated graphically.

Citation Download Citation

Donald S. Oliver "Real-Time Spatial Modulators For Optical/Digital Processing Systems", Proc. SPIE 0117, Data Extraction and Classification from Film, (22 November 1977); https://doi.org/10.1117/12.955651

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