机构

• 长春光学精密机械与物... [2]
• 地理科学与资源研究所 [1]
• 自动化研究所 [1]

采集方式

• OAI收割 [4]

内容类型

• 会议论文 [2]
• SCI/SSCI论文 [1]
• 期刊论文 [1]

发表日期

• 2018 [1]
• 2010 [1]
• 2009 [2]

学科主题

筛选

浏览/检索结果: 共4条，第1-4条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序作者升序作者降序 Isotropic Surface Remeshing without Large and Small Angles 期刊论文  OAI收割 IEEE TRANSACTIONS ON VISUALIZATION AND COMPUTER GRAPHICS, 2019, 卷号: 25, 期号: 7, 页码: 2430-2442 作者:  Wang, Yiqun;  Yan, Dong-Ming;  Liu, Xiaohan;  Tang, Chengcheng;  Guo, Jianwei   |  收藏  |  浏览/下载：62/0  |  提交时间：2018/10/01 Isotropic remeshing  non-obtuse remeshing  local operation  triangle quality   Optimal multiresolution dynamic models generation based on triangle importance (EI CONFERENCE) 会议论文  OAI收割 2nd International Conference on Image Analysis and Signal Processing, IASP'2010, April 12, 2010 - April 14, 2010, Xiamen, China 作者:   收藏  |  浏览/下载：22/0  |  提交时间：2013/03/25 In this paper  we propose an efficient method to generate optimal multiresolution dynamic models. By the method  we define the triangle importance degree as a weight parameter to be embedded to the edge contraction cost  so the new metric can not only measure distance error but also reflect geometric variation of local areas. A deformation degree weight is appended to the aggregated edge contraction cost for the whole animation  thus sharp features on areas with large deformation can be preserved. In addition  a process of mesh optimization and validity check can further alleviate the geometric distortion of the approximations. Our approach is efficient in operation  easy for implementation  and as a result high quality of dynamic approximations with well-preserved fine details can be generated at any given frame. 2010 IEEE.   Multiresolution animated models generation based on deformation distance analysis (EI CONFERENCE) 会议论文  OAI收割 2009 International Conference on Computer Modeling and Simulation, ICCMS 2009, February 20, 2009 - February 22, 2009, Macau, China Shixue Z.; Enhua W. 收藏  |  浏览/下载：65/0  |  提交时间：2013/03/25 In computer graphics  animated models have been widely used to represent time-varying data. Reducing the models complexly is a common way to overcome the rendering limitations. In this paper  2009 IEEE.  we propose an efficient method for generating multiresolution animated models based on deformation distance analysis. Our method obtains different LOD models by performing iterative edge contraction operations. We use deformation distance to analysis the deformation degree of the triangle planes during the whole animation  and define a deformation weight to be added to the aggregated edge contraction cost. Thus features in areas with large deformation can be preserved well. Besides  we propose a mesh optimization method for dynamic model sequence  which can efficiently improve the temporal coherence and reduce visual artifacts between adjacent frames. The results show our approach is efficient  easy to implement  and good quality animated approximations with well-preserved fine details can be generated at any given frame. copy   Applications of grey relational method to river environment quality evaluation in China SCI/SSCI论文  OAI收割 2009 作者:  Xia J. 收藏  |  浏览/下载：47/0  |  提交时间：2012/06/08 Grey relational method (GRM)  Triangle relational degree (TRD)  Water  quality evaluation (WQE)  Water quality index (WQI)  fuzzy synthetic evaluation  linear-programming approach  water-quality  uncertainty  prediction  system  recognition  model  index  sets