An adaptive shuttering scheme for speed-artifact-free swipe fingerprint sensor

Sangwoo Kim, Gunhee Han

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

Abstract

This paper proposes an adaptive shuttering scheme to overcome the speed dependent distortion in swipe-type fingerprint sensor. Adaptive shuttering is achieved by displacement measurement based on pattern matching for two line images obtained from two rows of pixels. A compact, low-power pattern matching circuit is proposed as well. The proposed adaptive scheme was adopted to optical swipe-type fingerprint sensor to verify. The sensor was fabricated with 90nm CMOS process. The total area of the prototype sensor is only 3200μm×160μm and consumes 3.2mW. Experimental results demonstrate that the prototype chip produces speed-artifact-free image with 40μm×40μm resolution despite of irregular finger motion.

Original languageEnglish
Title of host publication2019 IEEE International Symposium on Circuits and Systems, ISCAS 2019 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728103976
DOIs
Publication statusPublished - 2019
Event2019 IEEE International Symposium on Circuits and Systems, ISCAS 2019 - Sapporo, Japan
Duration: 2019 May 262019 May 29

Publication series

NameProceedings - IEEE International Symposium on Circuits and Systems
Volume2019-May
ISSN (Print)0271-4310

Conference

Conference2019 IEEE International Symposium on Circuits and Systems, ISCAS 2019
CountryJapan
CitySapporo
Period19/5/2619/5/29

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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    Kim, S., & Han, G. (2019). An adaptive shuttering scheme for speed-artifact-free swipe fingerprint sensor. In 2019 IEEE International Symposium on Circuits and Systems, ISCAS 2019 - Proceedings [8702250] (Proceedings - IEEE International Symposium on Circuits and Systems; Vol. 2019-May). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ISCAS.2019.8702250