中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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浏览/检索结果: 共9条,第1-9条 帮助

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Hierarchical stroke mesh: a new progressive matching method for detecting multi-scale road network changes using OpenStreetMap 期刊论文  OAI收割
SOFT COMPUTING, 2020, 页码: 19
作者:  
Wang, Yanhui;  Yu, Bibo;  Zhu, Fuxiao;  Zhang, Jianchen;  Huang, Chong
  |  收藏  |  浏览/下载:22/0  |  提交时间:2021/03/16
Hierarchical stroke mesh: a new progressive matching method for detecting multi-scale road network changes using OpenStreetMap 期刊论文  OAI收割
SOFT COMPUTING, 2020, 页码: 19
作者:  
Wang, Yanhui;  Yu, Bibo;  Zhu, Fuxiao;  Zhang, Jianchen;  Huang, Chong
  |  收藏  |  浏览/下载:18/0  |  提交时间:2021/03/16
A local feature based simplification method for animated mesh sequence (EI CONFERENCE) 会议论文  OAI收割
2010 2nd International Conference on Computer Engineering and Technology, ICCET 2010, April 16, 2010 - April 18, 2010, Chengdu, China
作者:  
Wang B.;  Wang B.;  Zhao J.;  Zhang S.
收藏  |  浏览/下载:23/0  |  提交时间:2013/03/25
Although animated meshes are frequently used in numerous domains  only few works have been proposed until now for simplifying such data. In this paper  we propose a new method for generating progressive animated models based on local feature analysis and deformation area preservation. We propose the use of solid angle and height value for a non-hyperbolic vertex to define the local feature parameter. This local factor is embedded to the vertex quadric error matrix when calculating the edge collapse cost. In order to preserve the areas with large deformation  we add deformation degree weight to the aggregated quadric errors when computing the unified edge contraction sequence. Finally  a mesh optimization process is proposed to further reduce the geometric distortion for each frame. Our approach is fast  easy to implement  and as a result good quality dynamic approximations with well-preserved fine details can be generated at any given frame. 2010 IEEE.  
an improved method for progressive animation models generation 期刊论文  OAI收割
SCIENCE CHINA-INFORMATION SCIENCES, 2010, 卷号: 53, 期号: 7, 页码: 1312-1321
Zhang ShiXue; Zhao JinYu; Wu EnHua
  |  收藏  |  浏览/下载:18/0  |  提交时间:2011/05/23
Progressive simplification and transmission of building polygons based on Triangle Meshes 会议论文  OAI收割
Proceedings of SPIE-The International Society for Optical Engineering
Li H. S.; Wang Y. J.; Guo Q. S.; Han J. F.
收藏  |  浏览/下载:30/0  |  提交时间:2012/06/30
An improved method for generating multiresolution animation models (EI CONFERENCE) 会议论文  OAI收割
2009 11th IEEE International Conference on Computer-Aided Design and Computer Graphics, CAD/Graphics 2009, August 19, 2009 - August 21, 2009, Huangshan, China
作者:  
Zhang S.
收藏  |  浏览/下载:35/0  |  提交时间:2013/03/25
In computer graphics  animated models are widely used to represent time-varying data. In this paper  we propose an improved method to generate multiresolution animation models. We use a curvature sensitive quadric error metric (QEM) criterion as our basic measurement  which can preserve local features on the surface. We append a deformation weight to the aggregated edge contraction cost for the whole animation to preserve areas with large deformation. At last  we introduce a mesh optimization method to deal with the animation sequence  which can efficiently improve the temporal coherence and reduce visual artifacts. The results show our approach is efficient  easy to implement  and good quality progressive animation models can be generated at any level of detail. 2009 IEEE.  
虚拟现实中场景绘制关键技术研究 学位论文  OAI收割
工学博士, 中国科学院自动化研究所: 中国科学院研究生院, 2008
作者:  
李俊
收藏  |  浏览/下载:116/0  |  提交时间:2015/09/02
Progressive ocean wave modelling in drum centrifuge 会议论文  OAI收割
1st International Symposium on Frontiers in Offshore Geotechnics, ISFOG 2005, Perth, WA, Australia, September 19, 2005 - September 21, 2005
作者:  
Gao FP(高福平);  Randolph MF
收藏  |  浏览/下载:22/0  |  提交时间:2017/06/01
医学影像可视化中的模型动态精简 学位论文  OAI收割
工学硕士, 中国科学院自动化研究所: 中国科学院自动化研究所, 2001
杨骅
收藏  |  浏览/下载:100/0  |  提交时间:2015/09/02