A 120x160 pixel CMOS Range Image Sensor based on Current Assisted Photonic Demodulators

被引：3

作者：

Pancheri, Lucio ^{[1
]}

Stoppa, David ^{[1
]}

Massari, Nicola ^{[1
]}

Malfatti, Mattia ^{[1
]}

Gonzo, Lorenzo ^{[1
]}

Hossain, Quazi D. ^{[2
]}

Dalla Betta, Gian-Franco ^{[2
]}

机构：

[1] FBK Irst, Via Sommar 18, I-38123 Trento, Italy

[2] Univ Trent, DISL, I-38123 Trento, Italy

来源：

OPTICAL SENSING AND DETECTION | 2010年 / 7726卷

关键词：

Range camera; Time-of-Flight; Current Assisted Photonic Demodulator;

D O I：

10.1117/12.854438

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper a Time-Of-Flight range camera based on Current Assisted Photonic Demodulators is presented. The sensor, fabricated in a 0.18 mu m CMOS technology, features 120x160 pixel resolution with 10 mu m pixel pitch and 24% fill factor. Pixel, camera and system architectures are described highlighting the most important design issues, and a selection of experimental results is presented. The chip has a power consumption of 200mW, mainly due to the contribution of modulation current. A range camera system was realized using the proposed sensor, a focusing optics providing a 23 degrees x30 degrees field of view, and a 3-LED illumination module delivering 140mW optical power on the target. The system is capable of acquiring a stream of 7 3D frames/s with a maximum non-linearity of 3.3% in the range 1.2m-3.7m and a precision better than 10 cm at 2m and 20 cm at 3m.

引用

页数：9

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