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Proceedings Paper

Rapid Video Data Capture And Processing System For Computer Image Measurement And Analysis
Author(s): M. K. Gamal EI-Din; J. M. K. Pratt; J. E. Wheatley
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Paper Abstract

Many systems have evolved around the television camera to allow digitised stationary scenes to be stored in memories, purpose built for the system, and operating at slow scan rates. The system to be described here uses a normal speed television camera to capture data and store it in a commercially available video refresh memory. Speed of operation, versatility, modularity and cost with regard to capturing and displaying data have been the main features of the investigation. The system devised and constructed can capture a scene with a resolution of 512 x 512 pixels each having a grey scale of 1 to 256 depending upon whether 1 or 2 memory cards are installed. A scene can be captured at a bit rate of 25 to 50 M bit per second by a process of multiplexing the data to be stored. An interface to a microprocessor based data processing system is incorporated to allow data to be manipulated and subsequently used in a variety of ways. These depend upon the requirements of the user and may involve, for example, control or analysis applications. The video memory has several hardware attributes and the system allows for pictures to be stored in either full or half frame mode. This feature is provided so that data processing of special images could take place.

Paper Details

Date Published: 10 August 1983
PDF: 8 pages
Proc. SPIE 0376, Optical Sensing: Techniques, Benefits, Costs, (10 August 1983); doi: 10.1117/12.934725
Show Author Affiliations
M. K. Gamal EI-Din, Trent Polytechnic (England)
J. M. K. Pratt, Trent Polytechnic (England)
J. E. Wheatley, Trent Polytechnic (England)

Published in SPIE Proceedings Vol. 0376:
Optical Sensing: Techniques, Benefits, Costs
S. J. Bennett, Editor(s)

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