Distorter characterisation using mutual inductance in electromagnetic tracking

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dc.contributor.authorJaeger, Herman Alexander
dc.contributor.authorCantillon-Murphy, Pádraig
dc.contributor.funderScience Foundation Irelanden
dc.contributor.funderEureka Eurostarsen
dc.contributor.funderEuropean Commissionen
dc.date.accessioned2019-10-28T06:52:52Z
dc.date.available2019-10-28T06:52:52Z
dc.date.issued2018-09-12
dc.description.abstractElectromagnetic tracking (EMT) is playing an increasingly important role in surgical navigation, medical robotics and virtual reality development as a positional and orientation reference. Though EMT is not restricted by line-of-sight requirements, measurement errors caused by magnetic distortions in the environment remain the technology’s principal shortcoming. The characterisation, reduction and compensation of these errors is a broadly researched topic, with many developed techniques relying on auxiliary tracking hardware including redundant sensor arrays, optical and inertial tracking systems. This paper describes a novel method of detecting static magnetic distortions using only the magnetic field transmitting array. An existing transmitter design is modified to enable simultaneous transmission and reception of the generated magnetic field. A mutual inductance model is developed for this transmitter design in which deviations from control measurements indicate the location, magnitude and material of the field distorter to an approximate degree. While not directly compensating for errors, this work enables users of EMT systems to optimise placement of the magnetic transmitter by characterising a distorter’s effect within the tracking volume without the use of additional hardware. The discrimination capabilities of this method may also allow researchers to apply material-specific compensation techniques to minimise position error in the clinical setting.en
dc.description.sponsorshipSFI (TIDA17/4897); EE (11581)en
dc.description.statusPeer revieweden
dc.description.versionPublished Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.articleid3059en
dc.identifier.citationJaeger, H. A. and Cantillon-Murphy, P., 2018. Distorter Characterisation Using Mutual Inductance in Electromagnetic Tracking. Sensors, 18(9), 3059, (25 pp.). DOI:10.3390/s18093059en
dc.identifier.doi10.3390/s18093059en
dc.identifier.endpage25en
dc.identifier.issn1424-8220
dc.identifier.issued9en
dc.identifier.journaltitleSensorsen
dc.identifier.startpage1en
dc.identifier.urihttps://hdl.handle.net/10468/8888
dc.identifier.volume18en
dc.language.isoenen
dc.publisherMDPI AGen
dc.relation.urihttps://www.mdpi.com/1424-8220/18/9/3059
dc.rights© 2018 by the authors. Licensee MDPI, Basel, Switzerland. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly citeden
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en
dc.subjectElectromagnetic trackingen
dc.subjectMagneticsen
dc.subjectDistortionen
dc.subjectRoboticsen
dc.subjectImage-guided interventionsen
dc.titleDistorter characterisation using mutual inductance in electromagnetic trackingen
dc.typeArticle (peer-reviewed)en
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