An Efficient Network Protocol for Virtual Worlds Browsing

  • R. Bernardini
  • G. M. Cortelazzo
Conference paper

Abstract

Three-dimensional virtual environments are gaining popularity in such applications as e-commerce, virtual visits of cultural heritage and videogames. The way virtual environments are currently accessed over the Internet is plagued by two major problems: the first one is due to the fact that the user must spend a considerable amount of time to download the 3D data which will be rendered on the user’s local machine (whose computational power can be inadequate for a smooth navigation); the second problem is that the control of the copyright over 3D models can be very difficult if anyone can download the 3D data. In this paper we propose an alternative approach for the access to virtual worlds which is based on the idea of performing the rendering at the server’s side and sending the resulting images to the client. The proposed protocol solves all the problems related to the downloading the 3D object description.

Keywords

Arena Plague 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. [1]
    D. Thaimann, “Virtual humans in virtual environments: a new view of multimedia applications,” in International Workshop on Synthetic-Natural Hybrid Coding and Three Dimensional Imaging (N. Sarris and M. G. Strintzis, eds.), (Rhodes, Greece), pp. 3–7, Sept. 1997.Google Scholar
  2. [2]
    R. Szeliski, “Video mosaic for virtual environments,” IEEE Computer Graphics and Applications, pp. 22–30, Mar. 1996.Google Scholar
  3. [3]
    R. W. Picard and S. Mann, “Video orbits of the projective group: A simple approach to featureless estimation of parameters,” IEEE Transaction on Image Processing, vol. 6, pp. 1281–1295, Sept. 1997.CrossRefGoogle Scholar
  4. [4]
    H. C. Longuet-Higgins, “A computer algorithm for reconstructing a scene from two projections,” Nature, pp. 133–135, 1981.Google Scholar
  5. [5]
    A. Shashua, “Algebraic functions for recognition,” IEEE Transaction on Pattern Analysis Mach. Intell., pp. 779–789, 1995.Google Scholar

Copyright information

© Springer-Verlag London 2001

Authors and Affiliations

  • R. Bernardini
    • 1
  • G. M. Cortelazzo
    • 1
  1. 1.Dipartimento di Elettronica ed InformaticaUniversità di PadovaPadovaItaly

Personalised recommendations