A CMOS vision sensor with on-the-fly histogram equalization using TFS encoding and AER read-out

Shoushun Chen, Amine Bermak, Dominique Martinez

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper presents a CMOS vision sensor performing image capture and on-chip histogram equalization. Both image capture and the processing are based on time-to-first spike encoding combined with Address Event Representation (AER) read-out scheme. The proposed approach not only provides a compact and efficient VLSI implementation but also eliminates voltage/current domain analog processing and hence provides immunity to dynamic range reduction caused by low voltage operation in advanced sub-micron technologies. The pixel values are read-out using an asynchronous handshaking type of read-out while the processing is carried out using simple and yet robust digital timer occupying a very small silicon area (0.1 × 0.6mm2 in 0.35μm CMOS). Low power operation (10nA per pixel) is achieved since the pixels are only allowed to switch once per frame and only active pixels are allowed to asynchronously access the bus. The prototype was implemented in 0.35μm CMOS technology with a silicon area of 3.1 × 3.2mm2.

Original languageEnglish
Title of host publication2005 IEEE Asian Solid-State Circuits Conference, ASSCC 2005
Pages433-436
Number of pages4
DOIs
Publication statusPublished - 2006
Externally publishedYes
Event1st IEEE Asian Solid-State Circuits Conference, ASSCC 2005 - Hsinchu, Taiwan, Province of China
Duration: 1 Nov 20053 Nov 2005

Other

Other1st IEEE Asian Solid-State Circuits Conference, ASSCC 2005
CountryTaiwan, Province of China
CityHsinchu
Period1/11/053/11/05

Fingerprint

Pixels
Sensors
Silicon
Processing
Electric potential
Image sensors
Switches

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

Cite this

Chen, S., Bermak, A., & Martinez, D. (2006). A CMOS vision sensor with on-the-fly histogram equalization using TFS encoding and AER read-out. In 2005 IEEE Asian Solid-State Circuits Conference, ASSCC 2005 (pp. 433-436). [4017624] https://doi.org/10.1109/ASSCC.2005.251758

A CMOS vision sensor with on-the-fly histogram equalization using TFS encoding and AER read-out. / Chen, Shoushun; Bermak, Amine; Martinez, Dominique.

2005 IEEE Asian Solid-State Circuits Conference, ASSCC 2005. 2006. p. 433-436 4017624.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Chen, S, Bermak, A & Martinez, D 2006, A CMOS vision sensor with on-the-fly histogram equalization using TFS encoding and AER read-out. in 2005 IEEE Asian Solid-State Circuits Conference, ASSCC 2005., 4017624, pp. 433-436, 1st IEEE Asian Solid-State Circuits Conference, ASSCC 2005, Hsinchu, Taiwan, Province of China, 1/11/05. https://doi.org/10.1109/ASSCC.2005.251758
Chen S, Bermak A, Martinez D. A CMOS vision sensor with on-the-fly histogram equalization using TFS encoding and AER read-out. In 2005 IEEE Asian Solid-State Circuits Conference, ASSCC 2005. 2006. p. 433-436. 4017624 https://doi.org/10.1109/ASSCC.2005.251758
Chen, Shoushun ; Bermak, Amine ; Martinez, Dominique. / A CMOS vision sensor with on-the-fly histogram equalization using TFS encoding and AER read-out. 2005 IEEE Asian Solid-State Circuits Conference, ASSCC 2005. 2006. pp. 433-436
@inproceedings{9c06cf0316c742ac9d3df4cd3d8ed117,
title = "A CMOS vision sensor with on-the-fly histogram equalization using TFS encoding and AER read-out",
abstract = "This paper presents a CMOS vision sensor performing image capture and on-chip histogram equalization. Both image capture and the processing are based on time-to-first spike encoding combined with Address Event Representation (AER) read-out scheme. The proposed approach not only provides a compact and efficient VLSI implementation but also eliminates voltage/current domain analog processing and hence provides immunity to dynamic range reduction caused by low voltage operation in advanced sub-micron technologies. The pixel values are read-out using an asynchronous handshaking type of read-out while the processing is carried out using simple and yet robust digital timer occupying a very small silicon area (0.1 × 0.6mm2 in 0.35μm CMOS). Low power operation (10nA per pixel) is achieved since the pixels are only allowed to switch once per frame and only active pixels are allowed to asynchronously access the bus. The prototype was implemented in 0.35μm CMOS technology with a silicon area of 3.1 × 3.2mm2.",
author = "Shoushun Chen and Amine Bermak and Dominique Martinez",
year = "2006",
doi = "10.1109/ASSCC.2005.251758",
language = "English",
isbn = "0780391624",
pages = "433--436",
booktitle = "2005 IEEE Asian Solid-State Circuits Conference, ASSCC 2005",

}

TY - GEN

T1 - A CMOS vision sensor with on-the-fly histogram equalization using TFS encoding and AER read-out

AU - Chen, Shoushun

AU - Bermak, Amine

AU - Martinez, Dominique

PY - 2006

Y1 - 2006

N2 - This paper presents a CMOS vision sensor performing image capture and on-chip histogram equalization. Both image capture and the processing are based on time-to-first spike encoding combined with Address Event Representation (AER) read-out scheme. The proposed approach not only provides a compact and efficient VLSI implementation but also eliminates voltage/current domain analog processing and hence provides immunity to dynamic range reduction caused by low voltage operation in advanced sub-micron technologies. The pixel values are read-out using an asynchronous handshaking type of read-out while the processing is carried out using simple and yet robust digital timer occupying a very small silicon area (0.1 × 0.6mm2 in 0.35μm CMOS). Low power operation (10nA per pixel) is achieved since the pixels are only allowed to switch once per frame and only active pixels are allowed to asynchronously access the bus. The prototype was implemented in 0.35μm CMOS technology with a silicon area of 3.1 × 3.2mm2.

AB - This paper presents a CMOS vision sensor performing image capture and on-chip histogram equalization. Both image capture and the processing are based on time-to-first spike encoding combined with Address Event Representation (AER) read-out scheme. The proposed approach not only provides a compact and efficient VLSI implementation but also eliminates voltage/current domain analog processing and hence provides immunity to dynamic range reduction caused by low voltage operation in advanced sub-micron technologies. The pixel values are read-out using an asynchronous handshaking type of read-out while the processing is carried out using simple and yet robust digital timer occupying a very small silicon area (0.1 × 0.6mm2 in 0.35μm CMOS). Low power operation (10nA per pixel) is achieved since the pixels are only allowed to switch once per frame and only active pixels are allowed to asynchronously access the bus. The prototype was implemented in 0.35μm CMOS technology with a silicon area of 3.1 × 3.2mm2.

UR - http://www.scopus.com/inward/record.url?scp=34250708940&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34250708940&partnerID=8YFLogxK

U2 - 10.1109/ASSCC.2005.251758

DO - 10.1109/ASSCC.2005.251758

M3 - Conference contribution

SN - 0780391624

SN - 9780780391628

SP - 433

EP - 436

BT - 2005 IEEE Asian Solid-State Circuits Conference, ASSCC 2005

ER -