A Range Image Sensor Based on 10-    Lock-In Pixels in 0.18-  m CMOS Imaging Technology

Stoppa D.; Massari N.; Pancheri L.Malfatti M.Perenzoni M.Gonzo L.

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A Range Image Sensor Based on 10- Lock-In Pixels in 0.18- m CMOS Imaging Technology

机译：A Range Image Sensor Based on 10- Lock-In Pixels in 0.18- m CMOS Imaging Technology

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摘要

This paper presents the design and characterization of a lock-in pixel array based on a buried channel photo-detector aimed at time-of-flight range imaging. The proposed photo-demodulator has been integrated in a 10-$mu{hbox {m}}$ pixel pitch with a fill factor of 24%, and is capable of a maximum demodulation frequency of 50 MHz with a contrast of 29.5%. The sensor has been fabricated in a 0.18-$mu{hbox {m}}$ CMOS imaging technology and assembled in a range camera system setup. The system provides a stream of three-dimensional images at 5–20 fps on a 3–6 m range, with a linearity error lower than 0.7% and a repeatability of 5–16 cm, while the best achievable precision is 2.7 cm at a 50-MHz modulation frequency.

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《IEEE Journal of Solid-State Circuits》 |2011年第1期|248-258|共11页
作者
Stoppa D.; Massari N.; Pancheri L.Malfatti M.Perenzoni M.Gonzo L.;
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作者单位

Fondazione Bruno Kessler (FBK), Povo (TN), Italy;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
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关键词
CMOS active pixel; image sensor; photo-demodulator; range finding; three-dimensional image sensor; time-of-flight;

A Range Image Sensor Based on 10- Lock-In Pixels in 0.18- m CMOS Imaging Technology

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