A Low-Power VGA Vision Sensor With Embedded Event Detection for Outdoor Edge Applications

被引：6

作者：

Zou, Yu ^{[1
]}

Gottardi, Massimo ^{[1
]}

Lecca, Michela ^{[1
]}

Perenzoni, Matteo ^{[1
]}

机构：

[1] Fdn Bruno Kessler, I-38123 Trento, Italy

来源：

IEEE JOURNAL OF SOLID-STATE CIRCUITS | 2020年 / 55卷 / 11期

基金：

欧盟地平线“2020”;

关键词：

Background subtraction (BS); event detection; local binary pattern (LBP); low-power vision sensors; motion detection (MD); BACKGROUND SUBTRACTION; PIXEL;

D O I：

10.1109/JSSC.2020.3005759

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：

We report on a low-power VGA vision sensor embedding event-detection capabilities targeted to battery-powered vision processing at the edge. The sensor relies on an always- ON double-threshold dynamic background subtraction (DT-DBS) algorithm. The resulting motion bitmap is de-noised, projected along xy-axes of the array of pixels and filtered to robustly detect moving targets even in noisy outdoor scenarios. The chip operates in motion detection (MD), applied on a QQVGA sub-sampled image, looking for anomalous motion in the scene at 344 mu W, and in imaging mode (IM), delivering full-resolution gray-scale images with associated local binary pattern (LBP) coding and motion bitmaps at 8 frames/s and 1.35 mW. The 4-mu m pixel vision sensor is manufactured in a 110-nm 1P4M CMOS and occupies 25.4 mm(2).

引用

页码：3112 / 3121

页数：10

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