MATERIALS STUDY FOR VISUAL TRANSFORMATION DEVICES.
Final rept., 1 Sep 64-30 Jun 66,
MOLECULON RESEARCH CORP CAMBRIDGE MASS
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A study of techniques for implementation of pattern recognition by uniform isotropic boundary propagation the Blum process was conducted. The desired component was a flat screen capable of performing this process on arbitrary high-contrast input images, providing both the basic propagation process and also satisfying the condition that confluent boundaries annihilate without crossing. Techniques studied include electroluminescentphotoconductive laminates, glow discharge phenomena, diffusion processes, thin film reactions, image storage tube systems, and thin film magnetic phenomena. Research was conducted on a theoretical level, including both analysis of basic propagation mechanisms and consideration of engineering parameters. The first three of the above systems appear potentially feasible, the ELPC screen offering the most promise within the current state of the art. A prototype screen of this type was procured from Westinghouse and its behavior is described. Satisfactory propagation was not achieved, for reasons given. Author