TSync: A new synchronization framework for multi-site 3D tele-immersion

Zixia Huang, Wanmin Wu, Klara Nahrstedt, Ahsan Arefin, Raoul Rivas

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Synchronization is a challenge in the multi-site 3D tele-immersion (3DTI) because it is complicated by the coexistence of highly correlated heterogenous streams from multiple sources, and the need for multi-stream resynchronization when user views change. To address the problems, we present TSync: a new multi-tier synchronization framework for 3DTI which can effectively reduce the multi-stream sync skews. Our contributions are focusing on (1) the use of timed synchronization points for multi-stream synchronization; (2) Internet bandwidth estimation based on machine learning; (3) the cooperative frame rate allocation for correlated multi-streams and (4) the resynchronization protocol used when user views change. Experimental results show that TSync can successfully achieve the synchronization of multi-source heterogeneous streams in 3DTI under Internet dynamics.

Original languageEnglish (US)
Title of host publicationNOSSDAV'10 - Proceedings of the 20th International Workshop on Network and Operating Systems Support for Digital Audio and Video
Pages39-44
Number of pages6
DOIs
StatePublished - Jul 23 2010
Event20th ACM Workshop on Network and Operating System Support for Digital Audio and Video, NOSSDAV 2010 - Amsterdam, Netherlands
Duration: Jun 2 2010Jun 4 2010

Publication series

NameProceedings of the International Workshop on Network and Operating System Support for Digital Audio and Video

Other

Other20th ACM Workshop on Network and Operating System Support for Digital Audio and Video, NOSSDAV 2010
CountryNetherlands
CityAmsterdam
Period6/2/106/4/10

Keywords

  • 3d tele-immersion
  • synchronization

ASJC Scopus subject areas

  • Software
  • Media Technology
  • Computer Networks and Communications

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  • Cite this

    Huang, Z., Wu, W., Nahrstedt, K., Arefin, A., & Rivas, R. (2010). TSync: A new synchronization framework for multi-site 3D tele-immersion. In NOSSDAV'10 - Proceedings of the 20th International Workshop on Network and Operating Systems Support for Digital Audio and Video (pp. 39-44). (Proceedings of the International Workshop on Network and Operating System Support for Digital Audio and Video). https://doi.org/10.1145/1806565.1806577