PowerPoint Presentation - Surface-Based Cross-Subject Analysis

7/2/2004 SSCC/NIMH 14

Creating standard-mesh surfaces

•The whole process takes 6 minutes on a 1.2 Ghz computer running linux

•You can compare original and standard surfaces using:

–SUMA

•create a spec file containing both original and standard-mesh surfaces.

•open two views, one showing original surface and one showing standard-mesh surfaces

•link viewers by coordinates (not by node index) from the SUMA controller (ctrl+u)

–CompareSurfaces Written by Shruti Japee

• a program that calculates the distance from each node on surface 1 along its normal to surface 2

– SurfaceMetrics

•a program that calculates metrics of the mesh like edge lengths, triangle areas, curvature, etc.