Publications [#280429] of David J. Brady
- Shankar, M; Burchett, J; Feller, SD; Jones, B; Swagart, R; Guenther, BD; Brady, DJ, Biometric tracking with coded pyroelectric sensor clusters,
Smart Structures and Materials 2005: Active Materials: Behavior and Mechanics, vol. 5796
pp. 174-185, SPIE, Orlando, FL, United States, ISSN 0277-786X [12.606557], [doi]
(last updated on 2019/11/22)
Human bodies are very good heat sources with peak emission wavelength of about 9μm. We use pyroelectric detectors that are differential in nature to detect human motion by their heat emissions. Coded Fresnel lens arrays create boundaries in space which helps to localize the human motion as well as classification. We design and implement a low-cost biometric tracking system using off-the-shelf components. We demonstrate tracking and classification using sensor clusters of dual-element pyroelectric detectors with coded Fresnel lens arrays.
Codes (symbols);Thermal effects;Pyroelectricity;Lenses;Arrays;