A scalable 20 ×20 fully asynchronous SPAD-based imaging sensor with AER readout

Andrew Berkovich; Timir Datta-Chaudhuri; Pamela Abshire

doi:10.1109/ISCAS.2015.7168832

A scalable 20 ×20 fully asynchronous SPAD-based imaging sensor with AER readout

Andrew Berkovich
, Timir Datta-Chaudhuri
, Pamela Abshire

Electrical Engineering

University of Maryland, College Park

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

22 Scopus citations

Abstract

In this paper we present a scalable 20×20 event-based imaging array. Each pixel consists of a large area (1200 μm²) single photon avalanche diode with dynamic quenching circuitry, compact 9-bit analog counter, comparator, and event generator. The array is designed for low-light imaging applications (<0.1 lux) with a simulated worst case event readout speed of 33 MHz, pixel-level dynamic range of 134 dB, and array-level dynamic range of 132 dB. We implement this in a 0.50 μ m CMOS process with a 100 μm × 100 μm area pixel, a fill-factor of 20%, and a total chip size of 3 mm × 3 mm.

Original language	English
Title of host publication	2015 IEEE International Symposium on Circuits and Systems, ISCAS 2015
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	1110-1113
Number of pages	4
ISBN (Electronic)	9781479983919
DOIs	https://doi.org/10.1109/ISCAS.2015.7168832
State	Published - Jul 27 2015
Event	IEEE International Symposium on Circuits and Systems, ISCAS 2015 - Lisbon, Portugal Duration: May 24 2015 → May 27 2015

Publication series

Name	Proceedings - IEEE International Symposium on Circuits and Systems
Volume	2015-July
ISSN (Print)	0271-4310

Conference

Conference	IEEE International Symposium on Circuits and Systems, ISCAS 2015
Country/Territory	Portugal
City	Lisbon
Period	05/24/15 → 05/27/15

Keywords

address-event representation (AER)
asynchronous imaging
CMOS image sensor
event-driven vision
high dynamic range (HDR)
low-light vision
single photon avalanche diode (SPAD)

Access to Document

10.1109/ISCAS.2015.7168832

Cite this

Berkovich, A., Datta-Chaudhuri, T., & Abshire, P. (2015). A scalable 20 ×20 fully asynchronous SPAD-based imaging sensor with AER readout. In 2015 IEEE International Symposium on Circuits and Systems, ISCAS 2015 (pp. 1110-1113). Article 7168832 (Proceedings - IEEE International Symposium on Circuits and Systems; Vol. 2015-July). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ISCAS.2015.7168832

@inproceedings{b989e7ec5c324b1aa8fd30889a35a07d,

title = "A scalable 20 {\texttimes}20 fully asynchronous SPAD-based imaging sensor with AER readout",

abstract = "In this paper we present a scalable 20{\texttimes}20 event-based imaging array. Each pixel consists of a large area (1200 μm2) single photon avalanche diode with dynamic quenching circuitry, compact 9-bit analog counter, comparator, and event generator. The array is designed for low-light imaging applications (<0.1 lux) with a simulated worst case event readout speed of 33 MHz, pixel-level dynamic range of 134 dB, and array-level dynamic range of 132 dB. We implement this in a 0.50 μ m CMOS process with a 100 μm {\texttimes} 100 μm area pixel, a fill-factor of 20\%, and a total chip size of 3 mm {\texttimes} 3 mm.",

keywords = "address-event representation (AER), asynchronous imaging, CMOS image sensor, event-driven vision, high dynamic range (HDR), low-light vision, single photon avalanche diode (SPAD)",

author = "Andrew Berkovich and Timir Datta-Chaudhuri and Pamela Abshire",

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day = "27",

doi = "10.1109/ISCAS.2015.7168832",

language = "English",

series = "Proceedings - IEEE International Symposium on Circuits and Systems",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

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Berkovich, A, Datta-Chaudhuri, T & Abshire, P 2015, A scalable 20 ×20 fully asynchronous SPAD-based imaging sensor with AER readout. in 2015 IEEE International Symposium on Circuits and Systems, ISCAS 2015., 7168832, Proceedings - IEEE International Symposium on Circuits and Systems, vol. 2015-July, Institute of Electrical and Electronics Engineers Inc., pp. 1110-1113, IEEE International Symposium on Circuits and Systems, ISCAS 2015, Lisbon, Portugal, 05/24/15. https://doi.org/10.1109/ISCAS.2015.7168832

A scalable 20 ×20 fully asynchronous SPAD-based imaging sensor with AER readout. / Berkovich, Andrew; Datta-Chaudhuri, Timir; Abshire, Pamela.
2015 IEEE International Symposium on Circuits and Systems, ISCAS 2015. Institute of Electrical and Electronics Engineers Inc., 2015. p. 1110-1113 7168832 (Proceedings - IEEE International Symposium on Circuits and Systems; Vol. 2015-July).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AB - In this paper we present a scalable 20×20 event-based imaging array. Each pixel consists of a large area (1200 μm2) single photon avalanche diode with dynamic quenching circuitry, compact 9-bit analog counter, comparator, and event generator. The array is designed for low-light imaging applications (<0.1 lux) with a simulated worst case event readout speed of 33 MHz, pixel-level dynamic range of 134 dB, and array-level dynamic range of 132 dB. We implement this in a 0.50 μ m CMOS process with a 100 μm × 100 μm area pixel, a fill-factor of 20%, and a total chip size of 3 mm × 3 mm.

KW - address-event representation (AER)

KW - asynchronous imaging

KW - CMOS image sensor

KW - event-driven vision

KW - high dynamic range (HDR)

KW - low-light vision

KW - single photon avalanche diode (SPAD)

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Berkovich A, Datta-Chaudhuri T, Abshire P. A scalable 20 ×20 fully asynchronous SPAD-based imaging sensor with AER readout. In 2015 IEEE International Symposium on Circuits and Systems, ISCAS 2015. Institute of Electrical and Electronics Engineers Inc. 2015. p. 1110-1113. 7168832. (Proceedings - IEEE International Symposium on Circuits and Systems). doi: 10.1109/ISCAS.2015.7168832

A scalable 20 ×20 fully asynchronous SPAD-based imaging sensor with AER readout

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Keywords

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