NDLI: Extraction of isosurfaces from multi-material CT volumetric data of mechanical parts

Content Provider	ACM Digital Library
Author	Shammaa, M. Haitham Suzuki, Hiromasa Ohtake, Yutaka
Abstract	We introduce a method for extracting boundary surfaces from volumetric models of mechanical parts by X-ray CT scanning. When the volumetric model is composed of two materials, one for the object and the other for the background (Air), these boundary surfaces can be extracted as isosurfaces using a contouring method such as Marching Cubes [Lorensen and Cline 1987]. For a volumetric model composed of more than two materials, we need to classify the voxel types into segments by material and use a generalized Marching Cubes algorithm that can deal with both CT values and material types. Here we propose a method for precisely classifying the volumetric model into its component materials using a modified and combined method of two well-known algorithms in image segmentation, region growing and Graph-cut. We then apply the generalized Marching Cubes algorithm to generate triangulated mesh surfaces. In addition, we demonstrate the effectiveness of our method by constructing high-quality triangular mesh models of the segmented parts.
Starting Page	213
Ending Page	220
Page Count	8
File Format	PDF
ISBN	9781605581064
DOI	10.1145/1364901.1364931
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2008-06-02
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Volumetric data Isosurface Multi-material
Content Type	Text
Resource Type	Article

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Extraction of isosurfaces from multi-material CT volumetric data of mechanical parts