Repository logo
 
Publication

Modifications and Improvements on Iris Recognition

2009-01Conference object Open access
Simple item page
dc.contributor.authorJ. Ferreira, Artur
dc.contributor.authorLourenço, André
dc.contributor.authorPinto, Bárbara
dc.contributor.authorTendeiro, Jorge
dc.date.accessioned2024-11-14T10:58:46Z
dc.date.available2024-11-14T10:58:46Z
dc.date.issued2009-01
dc.description.abstractIris recognition is a well-known biometric technique. John Daugman has proposed a method for iris recogni tion, which is divided into four steps: segmentation, normalization, feature extraction and matching. In this paper, we evaluate, modify and extend John Daugman’s method. We study the images of CASIA and UBIRIS databases to establish some modifications and extensions on Daugman’s algorithm. The major modification is on the computationally demanding segmentation stage, for which we propose a template matching approach. The extensions on the algorithm address the important issue of pre-processing, that depends on the image database, being especially important when we have a non infra-red red camera (e.g. a WebCam). For this typical scenario, we propose several methods for reflexion removal and pupil enhancement and isolation. The tests, carried out by our C# application on grayscale CASIA and UBIRIS images, show that our template matching based segmentation method is accurate and faster than the one proposed by Daugman. Our fast pre-processing algorithms efficiently remove reflections on images taken by non infra-red cameras.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationFerreira A., Lourenço A., Pinto B. and Tendeiro J. (2009). Modifications and Improvements on Iris Recognition. In Proceedings of the International Conference on Bio-inspired Systems and Signal Processing, pages 72-79 DOI: 10.5220/0001536100720079pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.21/17904
dc.language.isoengpt_PT
dc.publisherSciTePresspt_PT
dc.subjectiris recognitionpt_PT
dc.subjectbiometricspt_PT
dc.subjectimage processingpt_PT
dc.subjectimage segmentationpt_PT
dc.titleModifications and Improvements on Iris Recognitionpt_PT
dc.title.alternativeSciTePresspt_PT
dc.typeconference object
dspace.entity.typePublication
oaire.citation.conferencePlace14-17 january - Porto, Portugalpt_PT
oaire.citation.endPage79pt_PT
oaire.citation.startPage72pt_PT
oaire.citation.titleInternational Conference on Bio-inspired Systems and Signal Processingpt_PT
person.familyNameFerreira
person.familyNameLourenço
person.givenNameArtur
person.givenNameAndré
person.identifier1049438
person.identifier.ciencia-id091A-96FB-A88C
person.identifier.orcid0000-0002-6508-0932
person.identifier.orcid0000-0001-8935-9578
person.identifier.ridAAL-4377-2020
person.identifier.scopus-author-id35315359300
rcaap.rightsopenAccesspt_PT
rcaap.typeconferenceObjectpt_PT
relation.isAuthorOfPublication734bfe75-0c68-4cdf-8a87-2aef3564f5bd
relation.isAuthorOfPublicationcbc6b0dc-187b-4f88-a8b3-52b4721df057
relation.isAuthorOfPublication.latestForDiscoverycbc6b0dc-187b-4f88-a8b3-52b4721df057

Files

Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
Modifications_AJFerreira.pdf
Size:
1.36 MB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

ISEL - Eng. Elect. Tel. Comp. - Comunicações