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dc.contributor.authorUherčík, Marián
dc.contributor.authorKybic, Jan
dc.contributor.authorCachard, Christian
dc.contributor.authorLiebgott, Hervé
dc.date.accessioned2012-05-10T13:39:39Z
dc.date.available2012-05-10T13:39:39Z
dc.date.issued2009-09
dc.identifier.citationUHERČÍK, M. - KYBIC, J. - CACHARD, C. - LIEBGOTT, H.: Line filtering for detection of microtools in 3D ultrasound data. In Ultrasonics Symposium (IUS), 2009 IEEE International. Piscataway: IEEE Ultrasonics, Ferroelectrics, and Frequency Control Society, 2009, p. 594-597. ISSN 1948-5719. ISBN 978-1-4244-4390-1. DOI: 10.1109/ULTSYM.2009.5441538eng
dc.identifier.urihttp://hdl.handle.net/10467/9407
dc.description.abstractWe propose a robust method for localization of elongated surgical tools in 3D ultrasound data based on shape analysis. The tubular structures in input data are enhanced by a line filter in the pre-processing phase. A new model of a surgical tool appearance in 3D ultrasound image is proposed which exploits its tubular shape. The tool axis is estimated with robust model fitting using a randomized RANSAC procedure. The tool model requires the voxels close to the axis to have a high intensity, high tubularness, and the local principal directions to be consistent with the tool axis. The visual contrast of the tool can be enhanced four-fold using line filtering. We demonstrate that classification rate is improved by 25-40% when adding the tubularness attribute. The comparison to other state-of-the-art localization methods shows that the proposed method is the most robust for data with high level of noise at the expense of additional time for pre-processing (less than 10 seconds for volume of size 53×71×260 voxels).eng
dc.language.isocescze
dc.publisherIEEEcze
dc.rights© 2009 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.eng
dc.titleLine filtering for detection of microtools in 3D ultrasound datacze
dc.typepříspěvek z konference - tištěnýcze
dc.identifier.doi10.1109/ULTSYM.2009.5441538
dc.identifier.doihttp://dx.doi.org/10.1109/ULTSYM.2009.5441538


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