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1、Image-BasedMeshGenerationG.Tabor1,P.G.Young1;2,H.Jasak3Image-BasedMeshGenerationImage-BasedMeshingExamples11;23FemoralArteryG.Tabor,P.G.Young,H.JasakNasal
owsOtherbiomechanicalproblems1SECaM,UniversityofExeterExamples:2SimplewareLtd.other3WikkiLtdandFSB,UniversityofZagrebBiologicalcasesInletm
2、anifoldFoamsJuly1,2008SummaryImage-BasedMeshingImage-BasedMeshGenerationDevelopedinitiallyincomputationalbiomechanics.BiomedicalG.Tabor1,P.G.Young1;2,problemsareH.Jasak3GeometricallycomplexImage-BasedMeshingDiculttomeasure/describeExamplesPatient-speci cFemoralArteryNasal
owsOtherbiomechanic
3、alMedicalimagetechniques(MRI,CT)generate3dinformationproblemsExamples:aboutpatientasstackof2dimages.Challengeistocreateothergeometry,meshfromthisautomatically.BiologicalcasesInletmanifoldFoamsSimplewarefoundedbyDrPhilippeYoungtodevelopSummarytechniquesforCSA{workedtodevelopCFDoutput(Fluentmes
4、hformat).ApproachesImage-BasedMeshGenerationG.Tabor1,P.G.Young1;2,H.Jasak3Twopossibleapproachescanbeused;Image-BasedCAD-basedUseedge-detectionalgorithmstogenerateMeshingboundingsurfaces{passtoexistingmesherforExamplesFemoralArterymeshgeneration.Nasal
owsOtherVoxel-basedWorkwithimagestackvoxel
5、s;generatebiomechanicalproblemsvolumetricmeshdirectlyfromthese.Examples:otherBiologicalcasesWeusevoxel-basedmethods.Advantages;faster,morerobust,InletmanifoldFoamsgreaterautomationpossible.SummaryComputationaltoolsImage-BasedMeshGenerationScanIPImageprocessingandsegmentationcode.G.Tabor1,1;2P
6、rovidestoolsformanipulatingtheimagestackP.G.Young,H.Jasak3andde ningregionsbymarkingvoxelsImage-Based(segmentation).MeshingScanFEMeshgenerationcode.De nesbasemeshusingExamplesFemoralArterymarchingcubesalgorithm;truncatedbasedonNasal
owsOthersegmentationfromScanIP.Output{all-tet,biomechanicalp
7、roblemsmixedtet-hexmeshsmoothedatdomainExamples:otherboundaries.MultipledomainscanbeconformallyBiologicalcasesInletmanifoldmeshed.FoamsSummaryScanCADFurthermanipulationofimagestackbyvoxelisationofimportedCADelements{usedinconjunctionwithScanI
