机构

• 地理科学与资源研究所 [2]
• 长春光学精密机械与物... [2]

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

• 2010 [2]
• 2007 [2]

学科主题

• Geoscience... [1]
• Multidisci... [1]

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提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 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:   收藏  |  浏览/下载：24/0  |  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.   Animated models coarsening with local area distortion and deformation degree control (EI CONFERENCE) 会议论文  OAI收割 International Conference on Image Processing and Pattern Recognition in Industrial Engineering, August 7, 2010 - August 8, 2010, Xi'an, China 作者:  Zhang S.;  Zhao J. 收藏  |  浏览/下载：22/0  |  提交时间：2013/03/25 In computer graphics applications  mesh coarsening is an important technique to alleviate the workload of visualization processing. Compared to the extensive works on static model approximation  very little attentions have been paid to animated models. In this paper  we propose a new method to approximate animated models with local area distortion and deformation degree control. Our method uses an improved quadric error metric guided by a local area distortion measurement as a basic hierarchy. Also  we define a deformation degree parameter to be embedded into the aggregated quadric errors  so areas with large deformation during the animation can be successfully preserved. 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 sharp features can be generated at any given frame. 2010 SPIE.   An equal area conversion model for rasterization of vector polygons 期刊论文  OAI收割 SCIENCE IN CHINA SERIES D-EARTH SCIENCES, 2007, 卷号: 50, 期号: Suppl. 1, 页码: 169-175 作者:  Zhou, Chenghu(周成虎) 收藏  |  浏览/下载：139/32  |  提交时间：2011/05/25 vector polygon  vector-raster conversion  boundary grid  area distortion  boundary geometric characteristics   An equal area conversion model for rasterization of vector polygons SCI/SSCI论文  OAI收割 2007 作者:  Yang L. 收藏  |  浏览/下载：31/0  |  提交时间：2012/06/08 vector polygon  vector-raster conversion  boundary grid  area  distortion  boundary geometric characteristics  raster conversion