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Proceedings Paper

Impact Of RAM Multiported Memories On Interactive Digital Image Processing Systems
Author(s): Donald R. Fanshier; Harry C. Andrews
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Paper Abstract

This document describes the architecture and design philosophy of the COMTAL Vision One/20 digital image processing system. The Vision One/20 is a dual ported RAM refresh memory system which affords multiple user access to a common expandable data base (4096x4096x8 bit pixel memory images are available) with dynamic partitioning to afford a multiplicity of different applications. Real time roaming with a window size of up to 1024x1024 pixels through the data base is possible with zooming and 3x3 convolution all implementable in 1/30 second. With graphics overlay memories, annotation, labeling, outlining and arbitrarily shaped multiple small area monochrome or color correction are possible. Due to the dynamic allocation of the data base memory, digital loop movies in real-time are possible as is left-right, right-left, up-down or down-up scrolling of new imagery into the refresh memory and viewing window. These and other features are expanded upon herein. Pipeline processors, freeze frame iterative image array feedback, firmware-burned control and instruction com-mands are descriptive of modern image processing architectures used in the Vision One/20.

Paper Details

Date Published: 2 November 1979
PDF: 7 pages
Proc. SPIE 0199, Advances in Display Technology, (2 November 1979); doi: 10.1117/12.958041
Show Author Affiliations
Donald R. Fanshier, The COMTAL Corporation (United States)
Harry C. Andrews, The COMTAL Corporation (United States)


Published in SPIE Proceedings Vol. 0199:
Advances in Display Technology
John R. Parsons, Editor(s)

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