Dual contouring with topology-preserving simplification using enhanced cell representation
Dual contouring with topology-preserving simplification using enhanced cell representation
复制标题
使用增强的单元表示进行双轮廓绘制并保留拓扑简化
DOI：
10.1109/visual.2004.27
复制
发表时间：
2004
期刊：
影响因子：
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通讯作者：
A. Kaufman
中科院分区：
文献类型：
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作者：
N. Zhang;Wei Hong;A. Kaufman
我们提出了一种快速、拓扑保持的等曲面简化方法。我们的方法背后的基本概念是在等面简化过程中保留细胞中断开的表面成分。我们用一种新的表示法来表示等值面组件，称为增强单元，其中单元中的每个表面组件由顶点及其连接信息表示。采用保持拓扑的顶点聚类算法构建顶点八叉树。采用一种增强的对偶轮廓算法从顶点八叉树中提取误差有界的多分辨率等值面，同时保留最精细的分辨率等值面拓扑。包含多个顶点的单元在轮廓过程中被正确处理。我们的方法证明了比现有的基于八叉树的简化技术更好的结果。
We present a fast, topology-preserving approach for isosurface simplification. The underlying concept behind our approach is to preserve the disconnected surface components in cells during isosurface simplification. We represent isosurface components in a novel representation, called enhanced cell, where each surface component in a cell is represented by a vertex and its connectivity information. A topology-preserving vertex clustering algorithm is applied to build a vertex octree. An enhanced dual contouring algorithm is applied to extract error-bounded multiresolution isosurfaces from the vertex octree while preserving the finest resolution isosurface topology. Cells containing multiple vertices are properly handled during contouring. Our approach demonstrates better results than existing octree-based simplification techniques.