全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

基于层次聚类树的点曲面视点相关绘制

DOI: 10.11834/jig.20070229

Keywords: 模型简化,多层次细节,点基绘制,多分辨率

Full-Text   Cite this paper   Add to My Lib

Abstract:

针对点曲面的视点相关绘制问题,提出了一个新的表面基层次聚类简化算法。区别于普遍采用的空间剖分基策略,该算法的显著优势在于能够运用法向锥半角误差标准有效跟踪曲面的起伏变化,并以此为聚类简化过程提供可靠的全局误差控制。离线简化阶段,连同各种预定义的聚类约束条件,算法构造了点曲面模型的连续层次多分辨率表达。实时绘制阶段,层次可见性裁剪以及优化的树遍历提高了系统的整体性能。此外,通过引入附加的轮廓增强机制,在较大的屏幕投影误差和较高的模型简化率情况下,系统仍然能够保证较好的绘制视觉质量。

References

[1]  Zwicker M,Pfister H,van Baar J,et al.Surface splatting[A].In:Proceedings of the ACM SIGGRAPH Conference on Computer Graphics[C],Los Angeles,California,USA,2001:371~378.
[2]  Borsch M,Wiratanaya A,Kobbelt L.Efficient high quality rendering of point sampled geometry[A].In:Proceedings of Eurographics Workshop on Rendering[C],Pisa,Italy,2002:53 ~ 64.
[3]  Botsch M,Kobbelt L.High-quality point-based rendering on modern GPUs[A].In:Proceeding of the Pacific Graphics[C],Canmore,Alberta,Canada,2003:335~343.
[4]  Guennebaud G,Paulin M.Efficient screen space approach for hardware accelerated surfel rendering[A].In:Proceedings of Vision,Modeling,and Visualization 2003[C],Munich,Germany,2003:485 ~ 493.
[5]  Zwicker M,R(a)s(a)anen J,Botsch M,et al.Perspective accurate splatting[A].In:Proceedings of the Graphics Interface 2004Conference[C],London,Ontario,Cannda,2004:247 ~ 254.
[6]  Pauly M,Gross M,Kobbelt L.Efficient simplification of pointsampled surfaces[A].In:Proceedings of IEEE Visualization 2002[C],Boston,Massachusetts,USA,2002:163 ~ 170.
[7]  Linsen L.Point Cloud Representation[R].TR,2001-3,Germany:Faculty for Computer Science,Universitaet Karlsruhe.
[8]  Alexa M,Behr J,Fleishman S,et al.Computing and rendering point set surfaces[J].IEEE Transactions on Visualization and Computer Graphics,2003,9(1),3 ~ 15.
[9]  Moenning C,Dodgson N A.A new point cloud simplification algorithm[A].In:Proceedings of the 3rd IASTED Conference on Visualization,Imaging and Image Processing[C],Benalmadena,Spain,2003:1027 ~ 1033.
[10]  Moenning C,Dodgson N A.Intrinsic point cloud simplification[A].In:Proceedings of GraphiCon 2004[C],Moscow,Russia,2004:1147 ~ 1154.
[11]  Wu J,Kobbelt L.Optimized Sub-sampling of Point Sets for Surface Splatting[A].In:Proceedings of Eurographics 2004[C],Grenoble,France,2004:643 ~ 652.
[12]  Paj0arola R.Efficient level-of-details for point based rendering[A].In:Proceedings of the IASTED Computer Graphics and Imaging[C],Honolulu,Hawaii,USA,2003:141 ~146.
[13]  Rusinkiewicz S,Levoy M.Qsplat:A multiresolution point rendering system for large meshes[A].In:Proceedings of the ACM SIGGRAPH Conference on Computer Graphics[C],New Orleans,Louisiana,USA,2000:343 ~ 352.
[14]  Weyrich T,Pauly M,Heinzle S,et al.Post-processing of scanned 3D surface data[A].In:Proceedings of Symposium on Point-Based Graphics\'04[C],Zurich,Switzerland,2004:85 ~ 94.
[15]  Pauly M.Point primitives for interactive modeling and processing of 3D geometry[D].Zurich,Switzerland:The Swiss Federal Institute of Technology Zurich,2003.
[16]  Pajarola R.Fastmesh:Efficient view-dependent meshing[A].In:Proceedings of the Pacific Graphics[C],Tokyo,Japan,2001:22 ~ 30.
[17]  Luebke D,Erikson C.View-dependent simplification of arbitrary polygonal environments[A].In:Proceedings of the ACM SIGGRAPH Conference on Computer Graphics[C],Los Angeles,California,USA,1997:199~208.
[18]  Pfister H,Zwicker M,van Baar J,et al.Surfels:Surface elements as rendering primitives[A].In:Proceedings of the ACM SIGGRAPH Conference on Computer Graphics[C],New Orleans,Louisiana,USA,2000:335 ~ 342.
[19]  Dey T.K,Hudson J.PMR:Point to mesh rendering,a featurebased approach[A].In:Proceedings of IEEE Visualization 2002[C],Boston,Massachusetts,USA,2002:155~162.
[20]  Zwicker M.Continuous reconstruction,rendering,and editing of point sampled surfaces[D].Zurich,Switzerland:The Swiss Federal Institute of Technology Zurich,2003.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133