A Bio-Inspired APS for Selective Visual Attention

被引:3
作者
Cottini, Nicola [1 ]
Gottardi, Massimo [1 ]
Massari, Nicola [1 ]
Passerone, Roberto [1 ]
机构
[1] Fdn Bruno Kessler, I-38050 Trento, Italy
关键词
Vision sensors; active pixel sensors; visual attention; early visual features; background subtraction; SENSOR;
D O I
10.1109/JSEN.2013.2263962
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
This letter presents an active pixel sensor architecture that mimics the eye adaptive behavior through dynamic background subtraction as a basis for image interpretation tasks. The pixel extracts temporal contrast as a low-level visual feature for successive high-level processing targeted to monitoring applications. To do this, each pixel compares the acquired value with a voltage range computed over the past pixel behavior; values outside this range signal a potential alert. Two switched-capacitor programmable low-pass filters are embedded. The 26 mu m, 12% fill-factor, fully functional 45 T pixel has been fabricated in a 0.35 mu m CMOS technology.
引用
收藏
页码:3341 / 3342
页数:2
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