Supporting real-time visualization with the HDoV tree
Supporting real-time visualization with the HDoV tree
复制标题
使用 HDoV 树支持实时可视化
DOI：
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发表时间：
2003
期刊：
影响因子：
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通讯作者：
K. Tan
中科院分区：
文献类型：
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作者：
Lidan Shou;Zhiyong Huang;K. Tan
我们提出了层次可视度（HDoV）树来支持大型ve的实时可视化。HDoV树中的每个节点代表场景中的一个空间区域，并包含预先计算的可见度值。在运行时，DoV值可用于在观测区域发生变化时快速更新各节点的DoV。每个节点还与对象的lod相关联。我们提出了两种技术来遍历HDoV树以实现实时可视化。我们还提出了一种计算可见度的方法。我们报告了一个原型实现的实验结果，显示了所提出技术的有效性。
We propose the Hierarchical Degree-of-Visibility (HDoV) tree to support real-time visualization of large VEs. Each node in an HDoV tree represents a spatial region in the scene, and contains a precomputed Degree-of-Visibility value. In run-time, the DoV values can be used to update rapidly the DoV of each node when the viewing region changes. Each node is also associated with the LODs of the object(s). We propose two techniques to traverse the HDoV tree for real-time visualization. We also propose a method to compute the degree of visibility. We report experimental results of a prototype implementation that show the effectiveness of the proposed techniques.