Fingerprint recognition performance in rugged outdoors and cold weather conditions
Ron F Stewart, Matt Estevao, Andy Adler · 2009
This paper reports on tests of the performance of fingerprint recognition technology in rugged outdoor conditions, with an especial concentration on the performance in cold weather. We analyze: (1) chip versus optical fingerprint scanner technology, (2) recognition performance and image quality, and (3) user/device interaction. A outdoor fingerprint door access system was designed to capture fingerprint images and video data of user interactions. Using this device, data were captured over a period of two years, and a user survey performed. Data were analyzed in terms of biometric error rates and fingerprint quality (NFIQ) as a function of temperature and humidity. Results suggest: (1) biometric performance has no significant dependence on temperature and humidity (-30C to +20C), (2) both chip based and optical fingerprint scanners have some flaws in rugged and cold weather applications, and (3) overall fingerprint biometric technology has a good level of usability in this application.