dc.creator | Merino Monge, Manuel | es |
dc.creator | Gómez González, Isabel María | es |
dc.creator | Molina Cantero, Alberto Jesús | es |
dc.date.accessioned | 2018-11-14T11:42:26Z | |
dc.date.available | 2018-11-14T11:42:26Z | |
dc.date.issued | 2015 | |
dc.identifier.citation | Merino Monge, M., Gómez González, I.M. y Molina Cantero, A.J. (2015). Envelope filter sequence to delete blinks and overshoots. BioMedical Engineering OnLine, 14 (48), 1-23. | |
dc.identifier.issn | 1475-925X | es |
dc.identifier.uri | https://hdl.handle.net/11441/80161 | |
dc.description.abstract | Background: Eye movements have been used in control interfaces and as indicators
of somnolence, workload and concentration. Different techniques can be used to
detect them: we focus on the electrooculogram (EOG) in which two kinds of interference
occur: blinks and overshoots. While they both draw bell-shaped waveforms, blinks
are caused by the eyelid, whereas overshoots occur due to target localization error and
are placed on saccade. They need to be extracted from the EOG to increase processing
effectiveness.
Methods: This paper describes off- and online processing implementations based
on lower envelope for removing bell-shaped noise; they are compared with a 300-msmedian
filter. Techniques were analyzed using two kinds of EOG data: those modeled
from our own design, and real signals. Using a model signal allowed to compare
filtered outputs with ideal data, so that it was possible to quantify processing precision
to remove noise caused by blinks, overshoots, and general interferences. We analyzed
the ability to delete blinks and overshoots, and waveform preservation.
Results: Our technique had a high capacity for reducing interference amplitudes
(>97%), even exceeding median filter (MF) results. However, the MF obtained better
waveform preservation, with a smaller dependence on fixation width.
Conclusions: The proposed technique is better at deleting blinks and overshoots than
the MF in model and real EOG signals. | es |
dc.format | application/pdf | es |
dc.language.iso | eng | es |
dc.publisher | BioMed Central | es |
dc.relation.ispartof | BioMedical Engineering OnLine, 14 (48), 1-23. | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | Biosignal processing | es |
dc.subject | EOG signal | es |
dc.subject | Envelope filter | es |
dc.subject | Blink | es |
dc.subject | Overshoot | es |
dc.title | Envelope filter sequence to delete blinks and overshoots | es |
dc.type | info:eu-repo/semantics/article | es |
dcterms.identifier | https://ror.org/03yxnpp24 | |
dc.type.version | info:eu-repo/semantics/publishedVersion | es |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es |
dc.contributor.affiliation | Universidad de Sevilla. Departamento de Tecnología Electrónica | es |
dc.relation.publisherversion | https://biomedical-engineering-online.biomedcentral.com/track/pdf/10.1186/s12938-015-0046-0 | es |
dc.identifier.doi | 10.1186/s12938-015-0046-0 | es |
dc.contributor.group | Universidad de Sevilla. TIC022: Tecnologías para la Asistencia, la Integración y la Salud | es |
idus.format.extent | 23 p. | es |
dc.journaltitle | BioMedical Engineering OnLine | es |
dc.publication.volumen | 14 | es |
dc.publication.issue | 48 | es |
dc.publication.initialPage | 1 | es |
dc.publication.endPage | 23 | es |
dc.identifier.sisius | 20818588 | es |