22 November 1977 Real-Time Spatial Modulators For Optical/Digital Processing Systems
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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.
© (1977) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Donald S. Oliver, "Real-Time Spatial Modulators For Optical/Digital Processing Systems", Proc. SPIE 0117, Data Extraction and Classification from Film, (22 November 1977); doi: 10.1117/12.955651; https://doi.org/10.1117/12.955651

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