Contents
Abstract i
List of Illustrations v
1 Introduction 1
1.1 Visualizing Volume Data......................... 2
1.2 Volume Segmentation........................... 6
2 Tri-Iinear Representation of Segmented Volumes 10
2.1 Multi-material Contouring........................ 10
2.1.1 Classification method....................... 10
2.1.2 Characterization of the Contours................ 13
2.2 Set Operations on Multi-material Contours............... 15
2.2.1 Operations on Two Materials.................. 15
2.2.2 Operations for Three or More Materials ............ 17
2.3 Results................................... 18
3 Applications using Tri-Iinear Contours 20
3.1 Building Scalars from Existing Segmentation.............. 20
3.2 Importing Iso-surfaces .......................... 21
3.3 Tri-Iinear contours with Interactive Segmentation........... 23
3.4 GPU-Implementation........................... 24
4 Painting-based Segmentation 26
4.1 Segmentation with Graph-cut...................... 27