A safety monitoring system for taxi based on CMOS imager

Details A safety monitoring system for taxi based on CMOS imager A safety monitoring system for taxi based on CMOS imager

Jan 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005spie.5633..562l&link_type=abstract

Advanced Materials and Devices for Sensing and Imaging II. Edited by Wang, Anbo; Zhang, Yimo; Ishii, Yukihiro. Proceedings of

Computer Science

Scientific paper

CMOS image sensors now become increasingly competitive with respect to their CCD counterparts, while adding advantages such as no blooming, simpler driving requirements and the potential of on-chip integration of sensor, analogue circuitry, and digital processing functions. A safety monitoring system for taxi based on cmos imager that can record field situation when unusual circumstance happened is described in this paper. The monitoring system is based on a CMOS imager (OV7120), which can output digital image data through parallel pixel data port. The system consists of a CMOS image sensor, a large capacity NAND FLASH ROM, a USB interface chip and a micro controller (AT90S8515). The structure of whole system and the test data is discussed and analyzed in detail.

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