Show simple item record

dc.contributor.authorMorcego Seix, Bernardo
dc.contributor.authorArgilés Sans, Marc
dc.contributor.authorCabrerizo, Marc
dc.contributor.authorCardona Torradeflot, Genís
dc.contributor.authorPérez Magrané, Ramon
dc.contributor.authorPérez Cabré, Elisabet
dc.contributor.authorGispets Parcerisas, Joan
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria de Sistemes, Automàtica i Informàtica Industrial
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Òptica i Optometria
dc.date.accessioned2016-02-15T12:45:30Z
dc.date.available2016-02-15T12:45:30Z
dc.date.issued2016-02-02
dc.identifier.citationMorcego, B., Argilés , M., Cabrerizo, M., Cardona, G., Perez, R., Pérez-Cabré, E., Gispets, J. Blinking supervision in a working environment. "Journal of biomedical optics", 02 Febrer 2016, vol. 21, núm. 2.
dc.identifier.issn1083-3668
dc.identifier.urihttp://hdl.handle.net/2117/82931
dc.description.abstractThe health of the ocular surface requires blinks of the eye to be frequent in order to provide moisture and to renew the tear film. However, blinking frequency has been shown to decrease in certain conditions, such as when subjects are conducting tasks with high cognitive and visual demands. These conditions are becoming more common as people work or spend their leisure time in front of video display terminals (VDT). Supervision of blinking frequency in such environments is possible thanks to the availability of computer-integrated cameras. Therefore, the aim of the present study is to develop an algorithm for the detection of eye blinks and to test it, in a number of videos captured, while subjects are conducting a variety of tasks in front of the computer. The sensitivity of the algorithm for blink detection was found to be of 87.54% (range 30-100%), with a mean false positive rate of 0.19% (range 0-1.7%), depending on the illumination conditions during which the image was captured and other computer-user spacial configurations. The current automatic process is based on a partly modified preexisting eye detection and image processing algorithms and consists of 4 stages that are aimed at eye detection, eye tracking, iris detection and segmentation and iris height/width ratio assessment.
dc.language.isoeng
dc.subjectÀrees temàtiques de la UPC::Informàtica::Automàtica i control
dc.subjectÀrees temàtiques de la UPC::Ciències de la visió::Òptica física
dc.subject.lcshAutomatic control
dc.subject.lcshAdnexa oculi
dc.subject.lcshAlgorithms
dc.subject.otherautomatic eye blink detection
dc.subject.otherblinking frequency
dc.subject.otherimage processing algorithm
dc.subject.othercomputer vision syndrome (CVS)
dc.subject.othervideo display terminal (VDT)
dc.subject.otherdry eye
dc.subject.otherwebcam
dc.titleBlinking supervision in a working environment
dc.typeArticle
dc.subject.lemacControl automàtic
dc.subject.lemacUlls--Annexos
dc.subject.lemacAlgorismes
dc.contributor.groupUniversitat Politècnica de Catalunya. SAC - Sistemes Avançats de Control
dc.contributor.groupUniversitat Politècnica de Catalunya. GRCUV - Grup de Recerca del Centre Universitari de la Visió
dc.contributor.groupUniversitat Politècnica de Catalunya. GOAPI - Grup d'Òptica Aplicada i Processament d'Imatge
dc.identifier.doi10.1117/1.JBO.21.2.025005
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttp://spiedigitallibrary.org/
dc.rights.accessOpen Access
drac.iddocument17494484
dc.description.versionPostprint (author's final draft)
upcommons.citation.authorMorcego, B., Argilés , M., Cabrerizo, M., Cardona, G., Perez, R., Pérez-Cabré, E., Gispets, J.
upcommons.citation.publishedtrue
upcommons.citation.publicationNameJournal of biomedical optics
upcommons.citation.volume21
upcommons.citation.number2


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record

All rights reserved. This work is protected by the corresponding intellectual and industrial property rights. Without prejudice to any existing legal exemptions, reproduction, distribution, public communication or transformation of this work are prohibited without permission of the copyright holder