View-dependent mesh streaming using multi-chart geometry images

ABSTRACT

Many mesh streaming algorithms have focused on the transmission order of the polygon data with respect to the current viewpoint. In contrast to the conventional progressive streaming where the resolution of a model changes in the geometry space, we present an new approach which firstly partitions a mesh into several patches, then converts these patch into multi-chart geometry images(MCGIM). After all the MCGIM and normal map atlas are obtained by regular re-sampling, we could construct the regular quadtree-based hierarchical representation based on MCGIM. Experimental results have shown the effectiveness of our approach where one server streams the MCGIM texture atlas to the clients.

REFERENCES

• 1: Xianfeng Gu , Steven J. Gortler , Hugues Hoppe, Geometry images, Proceedings of the 29th annual conference on Computer graphics and interactive techniques, July 23-26, 2002, San Antonio, Texas
• 2: P. V. Sander , Z. J. Wood , S. J. Gortler , J. Snyder , H. Hoppe, Multi-chart geometry images, Proceedings of the 2003 Eurographics/ACM SIGGRAPH symposium on Geometry processing, June 23-25, 2003, Aachen, Germany

INDEX TERMS

Primary Classification:
  I. Computing Methodologies
  I.3 COMPUTER GRAPHICS
      I.3.2 Graphics Systems
          Subjects: Distributed/network graphics

Additional Classification:
  I. Computing Methodologies
  I.3 COMPUTER GRAPHICS
      I.3.3 Picture/Image Generation
          Subjects: Display algorithms

Keywords:
clustering, geometry image, mesh streaming, multiresolution rendering