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Reconstructing Multiresolution Mesh for Web Visualization Based on PDE Resampling

  • Ming-Yong Pang
  • Yun Sheng
  • Alexei Sourin
  • Gabriela González Castro
  • Hassan Ugail
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6670)

Abstract

Various Partial Differential Equations (PDEs) have been used in computer graphics for approximating surfaces of geometric shapes by finding solutions to PDEs, subject to suitable boundary conditions. The PDE boundary conditions are defined as 3D curves on surfaces of the shapes. We propose how to automatically derive these curves from the surface of the original polygon mesh. Analytic solutions to the PDEs used throughout this work are fully determined by finding a set of coefficients associated with parametric functions according to the particular set of boundary conditions. When large polygon meshes are used, the PDE coefficients require an order of magnitude smaller space compared to the original polygon data and can be interactively rendered with different levels of detail. It allows for an efficient exchange of the PDE shapes in 3D Cyberworlds and their web visualization. In this paper we analyze and formulate the requirements for extracting suitable boundary conditions, describe the algorithm for the automatic deriving of the boundary curves, and present its implementation as a part of the function-based extension of VRML and X3D.

Keywords

partial differential equations surface modeling surface approximation 3D reconstruction web visualization 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Ming-Yong Pang
    • 1
  • Yun Sheng
    • 2
  • Alexei Sourin
    • 2
  • Gabriela González Castro
    • 3
  • Hassan Ugail
    • 3
  1. 1.Department of Educational TechnologyNanjing Normal UniversityChina
  2. 2.School of Computer EngineeringNanyang Technological UniversitySingapore
  3. 3.Centre for Visual ComputingUniversity of BradfordUK

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