CCB Individual Researcher's and Postdoc's Project Pages - Yonggang Shi

Direct 3D --> 3D Cortical Mapping

Hippocampal surface analysis: automatic landmark detection on HC surfaces and statistical shape analysis

Shape analysis using intrinsic features: integrating local and global features.

Notes

• The direct cortical mapping paper is attached at the bottom.
• Ongoing research: direct mapping of general surfaces without landmarks, such as sub-cortical surfaces.
• Build directories:
  • Solaris (cerebro-sn1): /cxfs/tmp/yshi/Executables (*.exe executable files)
  • Cranium (cerebro-rsn1): /cxfs/ccb/yshi/CraniumExecutables - there is only a slight change to the names of the executables, relative to the builds on Solaris Grid (cerebro-sn1) we removed the .exe extension for all the names. Otherwise, the names are the same.

List of software tools compiled on the grid.

• Mesh2DTGrid.exe: It converts a triangular mesh to the narrow band representatoin of the signed distance function.
• SDF2Mesh.exe: It extracts the zero level set, which is reprensented as a triangular mesh, from a signed distance function.
• 3. Cortical mapping tools include:
  • 3.1 GeodesicMapping^?.exe: It finds the initial mapping.
  • 3.2 SurfaceMapping^?.exe: It computes the direct cortical map.
  • 3.3 LinearInterpMapToMesh^?.exe: It finds the map on the triangular mesh representation of the source cortical surface.
• 4. Hippocampal surface mapping tools include:
  • 4.1 HPLandmarkCurves^?.exe: It automatically extracts a set of landmark curves from a hippo surface in triangular mesh representation.
  • 4.2 HPRegionLabel^?.exe: Given the landmark curves, this algorithm partitions the hippo surface into 14 regions.
  • 4.3 HPInitMappingWithLabel^?.exe: Using the landmark curves and region labels, this algorithm finds the initial map.
  • 4.4 HPHarmonicMapping^?.exe: This algorithm computes the direct map between two hippo surfaces.
  • 4.5 HPSphericalMapping^?.exe: This algorithm computes the map from the hippo surface to a sphere.
  • 4.6 Mesh2MeshInterpolation.exe: This algorithm performs interpolation between two different mesh representations of the same surface. For example, the sphere.

Attachments

• Automated Hippocampal Mapping Pipeline (*.pipe) (03/13/08)
• DirectCorticalMappingDoubleColumn.pdf: Manuscript submitted to TMI
• Demo PPT - For the 03/13/08 Meeting.

Topic permissions

• Set ALLOWTOPICCHANGE = CCBPrincipalsGroup, YonggangShi

Attachment	Action	Size	Date	Who	Comment
DirectCorticalMappingDoubleColumn.pdf	manage	1137.7 K	14 Apr 2006 - 02:04	YonggangShi	Manuscript submitted to TMI