A 128x128, pixel 120-dB dynamic-range vision-sensor chip for image contrast and orientation extraction

被引：90

作者：

Rüedi, PF ^{[1
]}

Heim, P ^{[1
]}

Kaess, F ^{[1
]}

Grenet, E ^{[1
]}

Heitger, F ^{[1
]}

Burgi, PY ^{[1
]}

Gyger, S ^{[1
]}

Nussbaum, P ^{[1
]}

机构：

[1] Swiss Ctr Elect & Microtechnol SA, CH-2007 Neuchatel, Switzerland

来源：

IEEE JOURNAL OF SOLID-STATE CIRCUITS | 2003年 / 38卷 / 12期

关键词：

analog VLSI; CMOS vision sensor; contrast computation; early vision; orientation computation; temporal coding;

D O I：

10.1109/JSSC.2003.819169

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：

A vision sensor for low-cost, fast, and robust vision systems is described. The sensor includes an on-chip analog computation of contrast magnitude and direction of image features. A temporal ordering of this information according to the contrast magnitude is used to reduce the amount of data delivered. This sensor, realized in a 0.5-mum two-poly three-metal technology, features a contrast sensitivity of 2%, a contrast direction precision of +/-3degrees, and an illumination dynamic range of 120 dB. Applications with uncontrolled lighting conditions are ideal for this sensor.

引用

页码：2325 / 2333

页数：9

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