DocumentCode :
596794
Title :
Low power time-of-flight 3D imager system in standard CMOS
Author :
Kumar, Pranaw ; Charbon, E. ; Staszewski, Robert Bogdan ; Borowski, A.
Author_Institution :
Delft Univ. of Technol., Delft, Netherlands
fYear :
2012
fDate :
9-12 Dec. 2012
Firstpage :
941
Lastpage :
944
Abstract :
This paper proposes a novel time-of-flight (ToF) sensor with high dynamic range and fine depth resolution for medium and long range 3D imaging applications. It focuses on low power consumption while maintaining human-eye safety requirements. A pixel array architecture is employed where each pixel consists of a single-photon avalanche diode (SPAD) as a photo-detector along with a dedicated time-to-digital converter (TDC) for fast image acquisition. The imager is designed to achieve millimeter-level depth resolution with maximum range up to 30 m operating at a maximum frame rate of 1000 fps. It targets security applications, primarily facial recognition, but is also suitable for automotive vision and robotics.
Keywords :
CMOS image sensors; avalanche diodes; low-power electronics; photodetectors; time-digital conversion; facial recognition; fine depth resolution; high dynamic range; human-eye safety requirements; image acquisition; long range 3D imaging; low power consumption; low power time-of-flight 3D imager system; medium range 3D imaging; millimeter-level depth resolution; photodetector; pixel array architecture; security applications; single-photon avalanche diode; standard CMOS; time-of-flight sensor; time-to-digital converter; Arrays; CMOS integrated circuits; Clocks; Detectors; Image resolution; Photonics; Power demand;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Electronics, Circuits and Systems (ICECS), 2012 19th IEEE International Conference on
Conference_Location :
Seville
Print_ISBN :
978-1-4673-1261-5
Electronic_ISBN :
978-1-4673-1259-2
Type :
conf
DOI :
10.1109/ICECS.2012.6463506
Filename :
6463506
Link To Document :
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