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Proceedings Paper

Implementation of progressive data transmission in distributed virtual environment
Author(s): Xiaohong Jiang; Jiaoying Shi; Zhigeng Pan; Bowei Lin
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Paper Abstract

Transmitting huge geometry data over the network would bring severe delays that would effect the characteristics of reality and real-time of distributed virtual environment. To solve this problem we implemented a demand-driven progressive geometry transmission strategy with a prototype multi-user distributed virtual environment in client-server mode. Our data transmission strategy incorporates several techniques including multi-layer AOI management, demand- driven pre-fetching, progressive mesh based transmission and degraded presentation. The experimental result indicate that this strategy optimally utilizes the limited network bandwidth, efficiently saves memory space on local host, at the same time still meets with the real-time demand of virtual environment. In addition, to avoid the server being the system bottleneck, we designed and implemented a divisional data management mechanism with a demand-driven load-balancing algorithm.

Paper Details

Date Published: 27 April 2001
PDF: 8 pages
Proc. SPIE 4303, Real-Time Imaging V, (27 April 2001); doi: 10.1117/12.424953
Show Author Affiliations
Xiaohong Jiang, Zhejiang Univ. (China)
Jiaoying Shi, Zhejiang Univ. (China)
Zhigeng Pan, Zhejiang Univ. (China)
Bowei Lin, Zhejiang Univ. (China)

Published in SPIE Proceedings Vol. 4303:
Real-Time Imaging V
Nasser Kehtarnavaz, Editor(s)

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