A Dual-Operation-Mode Bio-Inspired Pixel

被引：5

作者：

Lenero-Bardallo, Juan A. ^{[1
]}

Hafliger, P. ^{[2
]}

机构：

[1] Univ Seville, CSIC, Inst Microelect Seville, Seville 41029, Spain

[2] Univ Oslo, Dept Informat, Nanoelect Grp, N-0316 Oslo, Norway

来源：

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS | 2014年 / 61卷 / 11期

关键词：

Address event representation (AER); asynchronous vision sensors; bio-inspired vision; spatial contrast; OPTIC-NERVE SIGNALS; RETINA;

D O I：

10.1109/TCSII.2014.2350352

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 new bio-inspired pixel concept is proposed. It can compute the spatial contrast and provide intensity images. The pixel sends spikes to communicate with its neighbors, computing the spatial contrast. Its expected fixed-pattern noise within neuromorphic arrays is 1% without using calibration. Its fill factor is 8.5%. Furthermore, the pixel has two different readout modes: pulse density modulation and time to first spike. The user can toggle any time between operation and readout modes, depending on the desired image quality and the bandwidth and power consumption requirements. The pixel has been implemented in AMS4M2P 0.35-mu m CMOS technology. Experimental results are provided.

引用

页码：855 / 859

页数：5

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