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Proceedings Paper

Real-Time Photoelectron Event-Detecting Video System
Author(s): R. H. Macklin; E. K. Hege; P. A. Strittmatter
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Paper Abstract

We describe a system for localization of photoelectron events utilizing an intensified Plumbicon camera and a Grinnell video digitizer. The Grinnell digitizer, arithmetic unit and memory are used to produce a real-time video difference between current pixel value and previous pixel value thereby suppressing multiple detection of the same event. A master clock provides synchronization with the camera in operation at 60 Hz in 240 lines/field, repeat field mode. Our event-localization scheme provides double-buffered line-address and event-amplitude for up to 32 events along a 512 pixel video line. A software algorithm allows localization of multiple detections of the same event, and provides a unique address interpolated with 1/2 line resolution by the host minicomputer in a 480 x 512 format.

Paper Details

Date Published: 17 March 1983
PDF: 4 pages
Proc. SPIE 0359, Applications of Digital Image Processing IV, (17 March 1983); doi: 10.1117/12.965957
Show Author Affiliations
R. H. Macklin, Steward Observatory (United States)
E. K. Hege, Steward Observatory (United States)
P. A. Strittmatter, Steward Observatory (United States)

Published in SPIE Proceedings Vol. 0359:
Applications of Digital Image Processing IV
Andrew G. Tescher, Editor(s)

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