| 基于形状特征与变形保持的动态模型简化 |
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| 引用本文： | 张世学,吴恩华.基于形状特征与变形保持的动态模型简化[J].计算机辅助设计与图形学学报,2008,20(9). |
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| 作者姓名： | 张世学 吴恩华 |
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| 作者单位： | 澳门大学科学技术学院电脑与资讯科学系,澳门;中国科学院软件研究所计算机科学国家重点实验室,北京,100190;澳门大学科学技术学院电脑与资讯科学系,澳门 |
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| 基金项目： | Studentship & Research Grant of University of Macau |
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| 摘 要： | 提出了一种基于形状特征与变形区域保持的动态表面多分辨率模型生成方法.该方法使用了基于形状特征的二次误差度量来计算边折叠代价,可以较好的保持模型表面特征.在计算整个变形动画中累加的边折叠代价时,加入相邻帧之间的变形程度信息,以保持变形程度较大区域的细节特征.最后基于整体的边折叠顺序,对每一帧模型进行细微的调整,以得到视觉失真最小的简化网格.文中方法的效率较高,易于实现,并且可以在变形网格的任意帧上生成高质量的、保持良好细节特征的简化模型.
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| 关 键 词： | 变形网格 细节层次 形状特征 网格简化 |
Dynamic Mesh Simplification Based on Shape Feature and Deformation Preservation |
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| Zhang Shixue,Wu Enhua.Dynamic Mesh Simplification Based on Shape Feature and Deformation Preservation[J].Journal of Computer-Aided Design & Computer Graphics,2008,20(9). |
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| Authors: | Zhang Shixue Wu Enhua |
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| Affiliation: | Zhang Shixue1) Wu Enhua1,2)1)(Department of Computer , Information Science,Faculty of Science , Technology,University of Macau,Macao)2)(State Key Laboratory of Computer Science,Institute of So ftware,Chinese Academy of Sciences,Beijing 100190) |
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| Abstract: | This paper presents an efficient method for the multiresolution representation of deforming surfaces based on shape feature and deformation area preservation. It adopts a shape feature based quadric error metric to compute the edge collapsing cost, which can efficiently preserve the features on the surface. Besides an additional deformation degree weight is introduced when calculating the aggregated quadric errors, thus features in areas with large deformation can be preserved. Finally, for each frame the e... |
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| Keywords: | deforming mesh level of details (LOD) shape feature mesh simplification |
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