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A Range Image Sensor Based on 10-\mu\ m Lock-In Pixels in 0.18-\mum CMOS Imaging Technology.
- Source :
- IEEE Journal of Solid-State Circuits; 01/01/2011, Vol. 46 Issue 1, p248-258, 11p
- Publication Year :
- 2011
-
Abstract
- 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\ 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\ 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. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00189200
- Volume :
- 46
- Issue :
- 1
- Database :
- Complementary Index
- Journal :
- IEEE Journal of Solid-State Circuits
- Publication Type :
- Academic Journal
- Accession number :
- 57252775
- Full Text :
- https://doi.org/10.1109/JSSC.2010.2085870