Title :
3D ranging with a high speed imaging array
Author :
Bellisai, Simone ; Guerrieri, Fabrizio ; Tisa, Simone
Author_Institution :
Dipt. di Elettron. ed Inf., Politec. di Milano, Milan, Italy
Abstract :
We present an innovative system for 3D image acquisition using a general purpose CMOS SPAD sensor for bidimensional imaging developed in our laboratory. The system reads the phase shift of a modulated light wave for each pixel with a high frame rate and return to a PC the 3D scan of the scene captured, allowing the implementation of advanced anti-collision techniques. The prototype presented in this paper acquires scenes in three dimensions with a spatial resolution of 10 cm with a frame-rate of 50 fps and a maximum distance of 7.5 m. Such a system is ideal for ambient acquisition in robotics application. The sensor used is a standard 0.35 μm CMOS 32 × 32 smart pixel array in which sensible elements are Single Photon Avalanche Diodes (SPADs).
Keywords :
CMOS image sensors; avalanche diodes; fluorescence spectroscopy; sensor arrays; smart pixels; 3D image acquisition; 3D ranging; CMOS SPAD sensor; bidimensional imaging; high speed imaging array; single photon avalanche diodes; smart pixel array; Arrays; Distance measurement; Logic gates; Photonics; Pixel; Radiation detectors; Three dimensional displays; 3D; SPAD; TOF; component;
Conference_Titel :
Ph.D. Research in Microelectronics and Electronics (PRIME), 2010 Conference on
Conference_Location :
Berlin
Print_ISBN :
978-1-4244-7905-4