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 half edge collapse 半边折叠(3)
 半边折叠
 A Mesh Simplification Algorithm with Area-weighted Half Edge Collapse and Progressive Mesh Construct 一种面积加权的半边折叠网格简化算法及其递进网格构造 短句来源 At last,I combine the half-collapse method with the close-plane combination idea and store the multi-resolution model produced by half edge collapse into a tight model denotation way,and achieve a high-efficient construction method of LOD model. 该算法采用了半边折叠几何简化操作为基础，将结果存储于一种能实现任意精度提取的多分辨率表示方法中，实现了多分辨率模型的构造，该算法除了考虑折叠边长度之外，还考虑了其他几何特征如“曲率条件”来计算边的折叠代价，能够有效地对网格模型进行简化； 短句来源 This paper realizes a kind of triangular mesh simplification algorithm based on half edge collapse. 以二次误差度量方法的边折叠为基本方法 ,实现一种面积加权半边折叠三角形网格模型简化的算法 . 短句来源
 相似匹配句对
 Edge 边缘 短句来源 Generation Calculus of Half Edge Graph 半边图模型之构造演算 短句来源 Aggregation and Reduction Calculus of Half Edge Graph 半边图模型之聚合归约演算 短句来源 On the Edge-Tenacity 关于图的边粘连度 短句来源 Half Beijinger 半个北京人 短句来源

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 half edge collapse
 The later are designated to be removed using half-edge collapse operations. The most flexible one treats a single half edge collapse operation as defining a level. For the downsampling, we use the half-edge collapse operation, which does not introduce a new vertex position but rather subsamples the original mesh. Figure 1 shows an example of a half-edge collapse operation. Downsampling simply removes the vertex n through a half edge collapse.
 This paper realizes a kind of triangular mesh simplification algorithm based on half edge collapse. It covers not only triangle normals around vertex but also other geometrical characteristic,such as triangle area to calculate cost of collapse, which efficiently simplifies mesh models. And the paper utilizes progressive meshs store mesh information and generates continuous level of detail (LOD) models. They support multiresolution representation, arbitrary refinement etc. Finally, provides example... This paper realizes a kind of triangular mesh simplification algorithm based on half edge collapse. It covers not only triangle normals around vertex but also other geometrical characteristic,such as triangle area to calculate cost of collapse, which efficiently simplifies mesh models. And the paper utilizes progressive meshs store mesh information and generates continuous level of detail (LOD) models. They support multiresolution representation, arbitrary refinement etc. Finally, provides example for application and its analytic data. 以二次误差度量方法的边折叠为基本方法 ,实现一种面积加权半边折叠三角形网格模型简化的算法 .该算法除了考虑顶点周围三角形的法向量外还考虑其他几何特征如三角形面积等来计算边的折叠代价 ,能够有效地对网格模型进行简化 ;采用递进网格表示方法存储网格信息 ,能够生成连续的细节层次模型 ,支持模型的多分辨率表示、任意精度简化等操作 .文中还给出了应用实例和分析数据 . 3D acceleration of real time graphics rendering is very important in virtual reality applications.Levels of Detail(LOD) are used in most complex rendering system.A multi-resolution model construction method based on the half-edge collapse is presented.By this method,polygon reduction can be implemented fast and effectively,and the simplification record is compactly stored in the single resolution mesh model,in which multi-resolution mesh representation is implicit.This can reduce the storage... 3D acceleration of real time graphics rendering is very important in virtual reality applications.Levels of Detail(LOD) are used in most complex rendering system.A multi-resolution model construction method based on the half-edge collapse is presented.By this method,polygon reduction can be implemented fast and effectively,and the simplification record is compactly stored in the single resolution mesh model,in which multi-resolution mesh representation is implicit.This can reduce the storage and achieve fast extraction and display easily. 虚拟现实的真实感限时图形生成中加速技术十分关键,细节层次模型(LOD)在实时绘制复杂场景中得到了广泛应用。提出了一种基于半边折叠的多分辨率模型构造方法,该算法能够快速简单并有效地减少模型的多边形数,同时将简化记录紧致地存储在隐含着多分辨率模型的单分辨率模型中,减少了存储空间,并能实现快速地提取及显示。 Mesh simplification is a classical research subject in computer graphics and is an very important significance for mesh storage, transmission process and real time render. In accordance with human vision theory, a new progressive mesh simplification algorithm was proposed. In the process of simplification, this algorithm keeps the most vision sensitive area. According to the energy function of half-edge collapse, this algorithm can effectively reduce geometry error. Experiment proves that this... Mesh simplification is a classical research subject in computer graphics and is an very important significance for mesh storage, transmission process and real time render. In accordance with human vision theory, a new progressive mesh simplification algorithm was proposed. In the process of simplification, this algorithm keeps the most vision sensitive area. According to the energy function of half-edge collapse, this algorithm can effectively reduce geometry error. Experiment proves that this algorithm can generate a series of LOD (level of detail) model with perceptible fidelity and low time complexity. 网格简化是计算机图形学中一个传统的研究课题,它对网格的存储和传输处理以及实时绘制都有着重要的意义。在视觉感知理论的指导下,提出一种新型的渐进网格简化算法,在简化过程中尽量保持视觉敏感的区域。依据半边折叠的能量函数来有效控制几何误差。实验表明,此算法不但可以生成一系列感知逼真的细节等级模型,而且具有很好的时间复杂性。 << 更多相关文摘
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