Title :
People count system using multi-sensing application
Author :
Hashimoto, Kazuhiko ; Morinaka, Katsuya ; Yoshiike, Nobuyuki ; Kawaguchi, Chihiro ; Matsueda, Satoshi
Author_Institution :
Human Environ. Res. Lab., Matsushita Electr. Ind. Co. Ltd., Osaka, Japan
Abstract :
A people counting system with human information sensors for use in a multi-sensing application for detecting the number of persons and their directions of movement at a wide door has been developed. The sensor head module of this sensing system consists of a 1-dimensional 8-element detector array fabricated by a sheet forming method of pyroelectric PbTiO3 ceramics, a IR-transparent lens and oscillating mechanical chopping parts. The sensor output is binarized by using the background mean method, and the number of passing persons and their directions of movement are recognized by a pattern recognition algorithm. By using this people counting system, the number of passersby at a 200 cm wide door can be detected with more than 95% accuracy
Keywords :
human factors; infrared detectors; infrared imaging; pattern recognition; pyroelectric detectors; 1D eight-element array detector; 200 cm; IR-transparent lens; PbTiO3; background mean method; human information sensors; movement direction; multi-sensing application; oscillating mechanical chopping parts; pattern recognition algorithm; people counting system; pyroelectric PbTiO3 ceramics; sheet forming method; wide door; Ceramics; Detectors; Humans; Lenses; Mechanical sensors; Pattern recognition; Pyroelectricity; Sensor arrays; Sensor systems; Sensor systems and applications;
Conference_Titel :
Solid State Sensors and Actuators, 1997. TRANSDUCERS '97 Chicago., 1997 International Conference on
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-3829-4
DOI :
10.1109/SENSOR.1997.635472
