3TP: an application-layer protocol for streaming 3-D graphics

  • Authors:
  • G. Al-Regib;Y. Altunbasak

  • Affiliations:
  • Center for Signal & Image Process., Georgia Inst. of Technol., Atlanta, GA, USA;Center for Signal & Image Process., Georgia Inst. of Technol., Atlanta, GA, USA

  • Venue:
  • ICME '03 Proceedings of the 2003 International Conference on Multimedia and Expo - Volume 2
  • Year:
  • 2003

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Abstract

This paper addresses the problem of streaming progressively compressed 3-D models over lossy networks. Out of all encoded packets that can be transmitted, we intelligently choose a subset of packets to be transmitted using TCP in order to meet a distortion constraint, while transmitting the remaining packets using UDP to minimize the end-to-end delay. We call this new application-layer protocol 3TP (3-D models transport protocol). Experimental results show savings of 42% and 68% in delay time at packet-loss rates of 6% and 19%, respectively, compared to systems that do not optimize transmission according to the encoded bitstream content.