dc.contributor.author | Lehti-Polojarvi, Mari | |
dc.contributor.author | Koskela, Olli | |
dc.contributor.author | Seppänen, Aku | |
dc.contributor.author | Figueiras, Edite | |
dc.contributor.author | Hyttinen, Jari | |
dc.date.accessioned | 2018-04-09T12:44:30Z | |
dc.date.available | 2018-04-09T12:44:30Z | |
dc.date.issued | 2018 | |
dc.identifier.uri | https://erepo.uef.fi/handle/123456789/6247 | |
dc.description.abstract | Electrical impedance tomography (EIT) is an imaging method that could become a valuable tool in multimodal applications. One challenge in simultaneous multimodal imaging is that typically the EIT electrodes cover a large portion of the object surface. This paper investigates the feasibility of rotational EIT (rEIT) in applications where electrodes cover only a limited angle of the surface of the object. In the studied rEIT, the object is rotated a full 360° during a set of measurements to increase the information content of the data. We call this approach limited angle full revolution rEIT (LAFR-rEIT). We test LAFR-rEIT setups in two-dimensional geometries with computational and experimental data. We use up to 256 rotational measurement positions, which requires a new way to solve the forward and inverse problem of rEIT. For this, we provide a modification, available for EIDORS, in the supplementary material. The computational results demonstrate that LAFR-rEIT with eight electrodes produce the same image quality as conventional 16-electrode rEIT, when data from an adequate number of rotational measurement positions are used. Both computational and experimental results indicate that the novel LAFR-rEIT provides good EIT with setups with limited surface coverage and a small number of electrodes. | |
dc.language.iso | EN | |
dc.publisher | IOP Publishing | |
dc.relation.ispartofseries | MEASUREMENT SCIENCE AND TECHNOLOGY | |
dc.relation.uri | http://dx.doi.org/10.1088/1361-6501/aa97f1 | |
dc.rights | CC BY 4.0 | |
dc.subject | electrical impedance tomography | |
dc.subject | limited angle surface detection | |
dc.subject | rotational finite element method | |
dc.subject | multimodal imaging | |
dc.title | Rotational electrical impedance tomography using electrodes with limited surface coverage provides window for multimodal sensing | |
dc.description.version | published version | |
dc.contributor.department | Department of Applied Physics, activities | |
uef.solecris.id | 53010202 | en |
dc.type.publication | Tieteelliset aikakauslehtiartikkelit | |
dc.relation.doi | 10.1088/1361-6501/aa97f1 | |
dc.description.reviewstatus | peerReviewed | |
dc.relation.articlenumber | 025401 | |
dc.relation.issn | 0957-0233 | |
dc.relation.issue | 2 | |
dc.relation.volume | 29 | |
dc.rights.accesslevel | openAccess | |
dc.type.okm | A1 | |
uef.solecris.openaccess | Hybridijulkaisukanavassa ilmestynyt avoin julkaisu | |
dc.rights.copyright | © IOP Publishing Ltd | |
dc.type.displayType | article | en |
dc.type.displayType | artikkeli | fi |
dc.rights.url | https://creativecommons.org/licenses/by/4.0/ | |