Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/2356
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dc.contributorDepartment of Health Technology and Informatics-
dc.creatorHuang, QH-
dc.creatorZheng, YP-
dc.date.accessioned2014-12-11T08:29:06Z-
dc.date.available2014-12-11T08:29:06Z-
dc.identifier.issn0041-624X-
dc.identifier.urihttp://hdl.handle.net/10397/2356-
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.rightsUltrasonics © 2006 Elsevier B.V. The journal web site is located at http://www.sciencedirect.com.en_US
dc.subjectAdaptive SDW interpolationen_US
dc.subjectVolume reconstructionen_US
dc.subject3D ultrasounden_US
dc.subjectSpeckle suppressionen_US
dc.titleAn adaptive squared-distance-weighted interpolation for volume reconstruction in 3D freehand ultrasounden_US
dc.typeJournal/Magazine Articleen_US
dc.identifier.spagee73-
dc.identifier.epagee77-
dc.identifier.volume44-
dc.identifier.doi10.1016/j.ultras.2006.06.040-
dcterms.abstractVolume reconstruction is a key procedure in 3D ultrasound imaging. An algorithm named as squared-distance-weighted (SDW) interpolation has been earlier proposed to reduce the blurring effect in the 3D ultrasonic images caused by the conventional distance weighted (DW) interpolation. However, the SDW parameter α, which controls the weight distribution, is a constant assigned by operators so that the interpolation effect is invariant for both sharp edges and speckle noises. In this paper, we introduced a new adaptive algorithm based on SDW interpolation for volume reconstruction of 3D freehand ultrasound. In the algorithm, the local statistics of pixels surrounding each voxel grid were used to adaptively adjust the parameter α in SDW. The voxel grids with a higher ratio of local variance and mean in their neighbourhoods would have a smaller α to make the image details sharper, while the voxel grids locating in regions with a lower ratio of local variance and mean would have a larger α to smooth image content in homogeneous regions, where speckle noise is usually observed and damages the image quality. By comparing the simulation results using the SDW and new adaptive algorithm, it was demonstrated that this new algorithm worked well in both edge preservation and speckle reduction.-
dcterms.accessRightsopen accessen_US
dcterms.bibliographicCitationUltrasonics, 22 Dec. 2006, v. 44, supp. 1, p. e73-e77-
dcterms.isPartOfUltrasonics-
dcterms.issued2006-12-22-
dc.identifier.isiWOS:000248802400014-
dc.identifier.scopus2-s2.0-33845689073-
dc.identifier.pmid16844174-
dc.identifier.eissn1874-9968-
dc.identifier.rosgroupidr33096-
dc.description.ros2006-2007 > Academic research: refereed > Publication in refereed journal-
dc.description.oaAccepted Manuscripten_US
dc.identifier.FolderNumberOA_IR/PIRAen_US
dc.description.pubStatusPublisheden_US
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