A Tangible Solution for Hand Motion Tracking in Clinical Applications

dc.contributor.authorSalchow-Hömmen, Christina
dc.contributor.authorCallies, Leonie
dc.contributor.authorLaidig, Daniel
dc.contributor.authorValtin, Markus
dc.contributor.authorSchauer, Thomas
dc.contributor.authorSeel, Thomas
dc.date.accessioned2019-02-20T12:08:20Z
dc.date.available2019-02-20T12:08:20Z
dc.date.issued2019-01-08
dc.description.abstractObjective real-time assessment of hand motion is crucial in many clinical applications including technically-assisted physical rehabilitation of the upper extremity. We propose an inertial-sensor-based hand motion tracking system and a set of dual-quaternion-based methods for estimation of finger segment orientations and fingertip positions. The proposed system addresses the specific requirements of clinical applications in two ways: (1) In contrast to glove-based approaches, the proposed solution maintains the sense of touch. (2) In contrast to previous work, the proposed methods avoid the use of complex calibration procedures, which means that they are suitable for patients with severe motor impairment of the hand. To overcome the limited significance of validation in lab environments with homogeneous magnetic fields, we validate the proposed system using functional hand motions in the presence of severe magnetic disturbances as they appear in realistic clinical settings. We show that standard sensor fusion methods that rely on magnetometer readings may perform well in perfect laboratory environments but can lead to more than 15 cm root-mean-square error for the fingertip distances in realistic environments, while our advanced method yields root-mean-square errors below 2 cm for all performed motions.en
dc.description.sponsorshipDFG, 414044773, Open Access Publizieren 2019 - 2020 / Technische Universität Berlinen
dc.identifier.eissn1424-8220
dc.identifier.urihttps://depositonce.tu-berlin.de/handle/11303/9026
dc.identifier.urihttp://dx.doi.org/10.14279/depositonce-8136
dc.language.isoenen
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en
dc.subject.ddc620 Ingenieurwissenschaften und zugeordnete Tätigkeitende
dc.subject.otherinertial sensoren
dc.subject.otherinertial measurement uniten
dc.subject.otherreal-time motion trackingen
dc.subject.otherhand trackingen
dc.subject.othermagnetic disturbancesen
dc.subject.otherdual quaternionsen
dc.subject.otherhand and finger kinematicsen
dc.subject.otherrehabilitationen
dc.subject.otherfunctional electrical stimulationen
dc.titleA Tangible Solution for Hand Motion Tracking in Clinical Applicationsen
dc.typeArticleen
dc.type.versionpublishedVersionen
dcterms.bibliographicCitation.articlenumber208en
dcterms.bibliographicCitation.doi10.3390/s19010208en
dcterms.bibliographicCitation.issue1en
dcterms.bibliographicCitation.journaltitleSensorsen
dcterms.bibliographicCitation.originalpublishernameMDPIen
dcterms.bibliographicCitation.originalpublisherplaceBaselen
dcterms.bibliographicCitation.volume19en
tub.accessrights.dnbfreeen
tub.affiliationFak. 4 Elektrotechnik und Informatik::Inst. Energie- und Automatisierungstechnik::FG Regelungssystemede
tub.affiliation.facultyFak. 4 Elektrotechnik und Informatikde
tub.affiliation.groupFG Regelungssystemede
tub.affiliation.instituteInst. Energie- und Automatisierungstechnikde
tub.publisher.universityorinstitutionTechnische Universität Berlinen

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