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Constructing isosurfaces from CT data

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1 Author(s)
Wallin, A. ; Bern Univ., Switzerland

An algorithm that automatically produces polygonal representations of 3-D structures within a volume from a set of cross-sectional images is presented. The method incorporates the requirements necessary for structure analysis to go beyond plain rendering. The algorithm is fully automatic, using local voxel values to determine the connectivity of the surface. The resulting polygons are coherently ordered and connected, and no polygon occurs more than once. Each surface is complete, that is, no holes occur (except as an option, on the boundaries of the volume). The algorithm can be used to describe and visualize normal as well as pathological anatomy.<>

Published in:

Computer Graphics and Applications, IEEE  (Volume:11 ,  Issue: 6 )

Date of Publication:

Nov. 1991

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