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A low-cost real-time imaging and processing system

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3 Author(s)
Li, H.F. ; University of Hong Kong, Electrical Engineering Department, Hong Kong, Hong Kong ; Tsang, C.M. ; Cheung, Y.S.

The design of a low-cost microprocessor-based real-time image acquisition and processing system is presented. The design criteria of a real-time imaging module (RIM) and of the resulting processing system on a suitable host are separately discussed. This system accepts a standard video signal and converts it into 128 ¿¿ 128 pixels at a rate of 50 frames per second. Simultaneous display of the digitised picture is provided. The RIM adopts a shared-memory approach to cope with the speed requirements, thus allowing the system to process both static and dynamic pictures in time-critical environments. It is inexpensive and easily adaptable to different hosts. A sufficient software library has been developed on a host, the EXORCISER, and two applications have been conducted on the system. To facilitate algorithm development, sampled pictures can be up-loaded to a more powerful system, the EXORMACS, which allows the evaluation of recognition algorithms

Published in:

Software & Microsystems  (Volume:2 ,  Issue: 5 )

Date of Publication:

October 1983

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