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A VEP-based BCI for robotics applications

Authors: Tiimus, Tõnis;

A VEP-based BCI for robotics applications

Abstract

Aju-arvuti liides (AAL) loob võimaluse inimeste või seadmetega suhtlemiseks kasutades selleks ainuüksi ajutegevust. AALid on eestkätt mõeldud kasutamiseks meditsiinis, kuna võimaldavad puuetega isikutel seadmeid kontrollida, paremini suhelda või enda eest hoolitseda. Olemasolevate AAL süsteemide probleemideks on madal infoedastuskiirus ning keerulised seadmed, mille kasutamisega ei pruugi inimene üksi hakkama saada. Käesoleva töö eesmärgiks oli luua liikumispuudega inimeste abistamiseks lihtsasti kasutatav, soodne ja modulaarne EEG-põhine AAL prototüüp. Valmis visuaalselt esilekutsutud potentsiaalidel (Steady-State Visually Evoked Potential ehk SSVEP) põhinev nelja vilkuva stiimuliga AAL, mille abil juhiti robotmanipulaatoreid. AALi loomiseks kasutati OpenBCI EEG signaalihõiveseadet, andmetöötluseks tarkvaraplatvormi OpenVibe ning kahte robotmanipulaatorit, mida juhiti kasutades ROS (Robot Operating System) tarkvararaamistikku. Signaalitöötluses kasutati CSP (Common Spatial Pattern) filtrit, signaalide võimsusspektrit ning klassifitseerimiseks LDA (Linear Discriminant Analysis) ja SVM(Support VectorMachine) algortime. Töö tulemusena valmis täisfunktsionaalne AAL prototüüp, mida testiti 8 kasutaja peal ning saavutati keskmine infoedastuskiirus 42.5 bit/min ja klassifitseerimistäpsus 91 %. Loodud lahenduse funktsionaalsuse demonstreerimiseks valiti kasutusjuht, kus inimene saab roboti abil ühe eseme tuua enda juurde käsi-jalgu kasutamata.

Country
Estonia
Related Organizations
Keywords

Robot Operating System(ROS), robotics, OpenVibe, visuaalselt esilekutsutud potentsiaal, Elektroensefalograafia (EEG), brain-computer interface (BCI), magistritööd, robootika, OpenBCI, aju-arvuti liides (AAL), Electroencephalography (EEG), Steady-State Visually Evoked Potential (SSVEP)

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  • citations
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    0
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Average
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Average
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Average
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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
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