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Construction of Simplified Boundary Surfaces from Serial-sectioned Metal Micrographs

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4 Author(s)
Dillard, S.E. ; Univ. of California, Davis ; Bingert, J.F. ; Thoma, D. ; Hamann, B.

We present a method for extracting boundary surfaces from segmented cross-section image data. We use a constrained Potts model to interpolate an arbitrary number of region boundaries between segmented images. This produces a segmented volume from which we extract a triangulated boundary surface using well-known marching tetrahedra methods. This surface contains staircase-like artifacts and an abundance of unnecessary triangles. We describe an approach that addresses these problems with a voxel-accurate simplification algorithm that reduces surface complexity by an order of magnitude. Our boundary interpolation and simplification methods are novel contributions to the study of surface extraction from segmented cross-sections. We have applied our method to construct polycrystal grain boundary surfaces from micrographs of a sample of the metal tantalum.

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Visualization and Computer Graphics, IEEE Transactions on  (Volume:13 ,  Issue: 6 )