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政大機構典藏 > 資訊學院 > 資訊科學系 > 期刊論文 > Item 140.119/23621

Please use this identifier to cite or link to this item: https://nccur.lib.nccu.edu.tw/handle/140.119/23621

Title:	A Data Management Scheme for Effective Walkthrough in Complex Virtual Environments
Authors:	李蔡彥;W.H. Hsu
Contributors:	IEEE 資訊科學系
Keywords:	Large-scale virtual environment;Spatial data management;Effective walkthrough;Prefetching;Caching
Date:	2004-12
Issue Date:	2009-01-09 16:30:49 (UTC+8)
Abstract:	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.
Relation:	The Visual Computer, 20(10), 624-634
Data Type:	article
DOI 連結:	http://dx.doi.org/10.1007/s00371-004-0264-0
DOI:	10.1007/s00371-004-0264-0
Appears in Collections:	[資訊科學系] 期刊論文

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