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KMID : 0388419960060010047
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Konkuk Journal of Medical Sciences
1996 Volume.6 No. 1 p.47 ~ p.52
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Digital Time-Delay-Integration Technique for Medical Infrared Imaging System
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Abstract
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A digital-time-delay integration technique is proposed for the signal-to-noise ratio improvement in the medical infrared imaging system. Since the proposed technique integrates the imaging signal after the digitization of the signal, it
compresses
both
detector and pre-amplifier noises. Therefore, the proposed technique has better performance than the conventional analog time-delay-integration technique. The proposed technique was implemented using a single-chip digital signal processor. We
have
tested the implemented system using a home-made infrared imaging system. The experimental signal-to-noise ratio improvement by the proposed technique almost reach the theoretical limit of m1/2 where m is the number of detector elements.
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KEYWORD
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