DocumentCode :
3226314
Title :
Surveillance sensor systems using CMOS imagers
Author :
Teuner, A. ; Hillebrand, M. ; Hosticka, B.J. ; Park, S.-B. ; Conde, J. E Santos ; Stevanovic, N.
Author_Institution :
Fraunhofer Inst. of Microelectron. Circuits & Syst., Duisburg, Germany
fYear :
1999
fDate :
1999
Firstpage :
1124
Lastpage :
1127
Abstract :
Surveillance sensors are being applied in factory automation systems, traffic control, entrapment protection, automotive safety systems and in other applications where information about the occupancy of a scene is required. In order to detect object motion several methods exploiting distinct physical phenomena, e.g. passive infrared sensors or active microwave sensors, have been realized. When comparing all of the applicable methods, the electro-optical approach performs very well with respect to the spatial resolution of the monitored area. Therefore, electro-optical sensors are able to provide additional information, e.g. to predict the direction of motion, or to localize and identify objects. However, convenient image processing systems using CCD sensors for image acquisition and DSP or μP boards for signal processing and classification are not well suited for dedicated, powerful and cost-effective optical sensor solutions. In contrast to this mainstream approach CMOS based imaging technologies offer novel solutions in both the design and applications of electro-optical surveillance sensors. This contribution discusses CMOS imager operating principles and describes certain architectures and applications for passive and active surveillance sensors. The capabilities for realizing on-chip motion detection and range sensing using fast shutter devices are illustrated. We conclude with a discussion of the status of CMOS surveillance sensors and suggest trends for future applications
Keywords :
CMOS image sensors; distance measurement; electro-optical devices; image motion analysis; image processing equipment; image resolution; surveillance; CMOS based imaging technologies; CMOS imagers; automotive safety systems; electro-optical surveillance sensors; entrapment protection; factory automation systems; fast shutter devices; image acquisition; object motion; on-chip motion detection; optical sensor solutions; range sensing; surveillance sensor systems; traffic control; CMOS image sensors; CMOS technology; Electrooptic devices; Manufacturing automation; Motion detection; Optical sensors; Sensor phenomena and characterization; Sensor systems; Sensor systems and applications; Surveillance;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Image Analysis and Processing, 1999. Proceedings. International Conference on
Conference_Location :
Venice
Print_ISBN :
0-7695-0040-4
Type :
conf
DOI :
10.1109/ICIAP.1999.797752
Filename :
797752
Link To Document :
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