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Proceedings Paper

Electro-optical design for efficient visual communication
Author(s): Friedrich O. Huck; Carl L. Fales; Daniel J. Jobson; Zia-ur Rahman
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Paper Abstract

Visual communication can be regarded as efficient only if the amount of information that it conveys from the scene to the observer approaches the maximum possible and the associated cost approaches the minimum possible. To deal with this problem, Fales and Huck have integrated the critical limiting factors that constrain image gathering into classical concepts of communication theory. This paper uses this approach to assess the electro-optical design of the image gathering device. Design variables include the f-number and apodization of the objective lens, the aperture size and sampling geometry of the photodetection mechanism, and lateral inhibition and nonlinear radiance-to-signal conversion akin to the retinal processing in the human eye. It is an agreeable consequence of this approach that the image gathering device that is designed along the guidelines developed from communication theory behaves very much like the human eye. The performance approaches the maximum possible in terms of the information content of the acquired data, and thereby, the fidelity, sharpness and clarity with which fine detail can be restored, the efficiency with which the visual information can be transmitted in the form of decorrelated data, and the robustness of these two attributes to the temporal and spatial variations in scene illumination.

Paper Details

Date Published: 24 June 1994
PDF: 16 pages
Proc. SPIE 2239, Visual Information Processing III, (24 June 1994); doi: 10.1117/12.179277
Show Author Affiliations
Friedrich O. Huck, NASA Langley Research Ctr. (United States)
Carl L. Fales, NASA Langley Research Ctr. (United States)
Daniel J. Jobson, NASA Langley Research Ctr. (United States)
Zia-ur Rahman, Science and Technology Corp. (United States)

Published in SPIE Proceedings Vol. 2239:
Visual Information Processing III
Friedrich O. Huck; Richard D. Juday, Editor(s)

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