Development of a non-contact screening system for rapid medical   inspection at a quarantine depot using a laser Doppler blood-flow   meter, microwave radar and infrared thermography.
In order to conduct fast screening of passengers with infections such as severe acute respiratory syndrome (SARS) or pandemic influenza at a quarantine depot, we developed a non-contact screening system with a self-produced program to conduct a human screening within five seconds, via a linear discriminant function from non-contact derived variables, i.e. palmer pulse derived from a laser Doppler blood-flow meter, respiration rate determined by a 10-GHz microwave radar, and facial temperature measured by a thermography. The system evaluation was conducted on seven healthy male subjects (23+1 years). In order to achieve a pseudo-infection condition, the subjects maintained an ergo-meter exercise load (100 W, 10 minutes). Before (normal condition) and after (pseudo-infection condition) exercise, a significant linear discriminant function (p50.001) was determined to distinguish the pseudo-infection condition from the normal condition (Mahalanobis D-square 1/4 20.3, classification error rate55%). The proposed system appears promising for future application in fast screening of infection at a quarantine depot.
Department of Management Systems Engineering, Tokyo Metropolitan University, Hino, Tokyo, Japan. tmatsui@cc.tmit.ac.jp
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Matsui
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Suzuki
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Ujikawa
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Usui
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Gotoh
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Sugamata
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Badarch
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Abe
D003627:Data Interpretation, Statistical; D016002:Discriminant Analysis; D004196:Disease Outbreaks / Q000517:prevention & control; D005145:Face / Q000502:physiology; D006339:Heart Rate / Q000502:physiology; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods; D007259:Infrared Rays; D017078:Laser-Doppler Flowmetry / Q000379:methods*; D008403:Mass Screening / Q000295:instrumentation / Q000379:methods; D008872:Microwaves; D012119:Respiration; D013817:Thermography / Q000379:methods*; D014584:User-Computer Interface