政大機構典藏-National Chengchi University Institutional Repository(NCCUR):Item 140.119/23621
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    题名: A Data Management Scheme for Effective Walkthrough in Complex Virtual Environments
    作者: 李蔡彥;W.H. Hsu
    贡献者: IEEE
    資訊科學系
    关键词: Large-scale virtual environment;Spatial data management;Effective walkthrough;Prefetching;Caching
    日期: 2004-12
    上传时间: 2009-01-09 16:30:49 (UTC+8)
    摘要: As the complexity of virtual environments increases, it becomes a critical issue to maintain the quality of a walkthrough experience. In this paper, we propose an effective data management scheme to address this issue in client-server architecture. First, we propose using real-time scene management to manage the computing resources on the client side by reducing the amount of transmitted geometry data. Second, we propose a prioritized most likelihood movement model to prefetch potential future objects based on the user’s current motion intention. Lastly, a hybrid coherence cache model is proposed to take advantages of both the temporal and spatial localities of the walkthrough process. We have done extensive experiments to demonstrate how these techniques can improve the effectiveness of walkthrough in a large virtual environment.
    關聯: The Visual Computer, 20(10), 624-634
    数据类型: article
    DOI 連結: http://dx.doi.org/10.1007/s00371-004-0264-0
    DOI: 10.1007/s00371-004-0264-0
    显示于类别:[資訊科學系] 期刊論文

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