## Decimation for volume rendering of tetrahedral grids |

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### Contents

Simplification of Data | 5 |

A New Model for Volume Decimation | 23 |

Experiments and Results | 34 |

Copyright | |

2 other sections not shown

### Common terms and phrases

approximation area of polygons artifacts cells computation space curvilinear curvilinear grid data values decimated volume decimation algorithm decimation levels decimation method decimation with retetrahedralization Decimation without regridding Delaunay triangulation density density-metric Decimation direct volume rendering Effect of decimation error metric geometry global error graphics hardware hence hierarchical Hoppe image quality inside the volume isosurfaces ith vertex level of detail merged method without regridding multiresolution neighboring vertices number of polygons number of vertices optimization original mesh pixel points polygon meshes polygonal region Polygons Kept Figure priority queue Progressive Mesh ray cast ray-casting regridding using density-metric regridding using mass-metric regular grids representation result retetrahedralization using mass-metric rms-image-error sampled scan conversion splatting superface surface meshes surface simplification surface vertex technique terrain tetrahedra incident tetrahedral grids throw away vertices topology transfer function triangle strips triangle.table unstructured grids valid tetrahedralization volume datasets volume decimated volume rendered images volume rendering algorithm Volume Visualization voxel