中大機構典藏-NCU Institutional Repository-提供博碩士論文、考古題、期刊論文、研究計畫等下載:Item 987654321/9403
English  |  正體中文  |  简体中文  |  全文笔数/总笔数 : 66984/66984 (100%)
造访人次 : 22956796      在线人数 : 491
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
搜寻范围 查询小技巧:
  • 您可在西文检索词汇前后加上"双引号",以获取较精准的检索结果
  • 若欲以作者姓名搜寻,建议至进阶搜寻限定作者字段,可获得较完整数据
  • 进阶搜寻


    jsp.display-item.identifier=請使用永久網址來引用或連結此文件: http://ir.lib.ncu.edu.tw/handle/987654321/9403


    题名: 整合多重解析度地形與建築物的景觀展示系統;Multiresolution Terrain Visualization with Multiresolution Building Modeling
    作者: 謝耀緯;Yao-Wei Hsieh
    贡献者: 資訊工程研究所
    关键词: 簡化;多重解析度模塑;simplification;level-of-detail;Multiresolution
    日期: 2007-06-27
    上传时间: 2009-09-22 11:47:02 (UTC+8)
    出版者: 國立中央大學圖書館
    摘要: 城市和郊區的景觀展示系統提供使用者更真實的感觀和認識我們的環境。此外,使用者可以自由的在合成環境中瀏覽,藉此得到更多的資訊。在本論文中,我們結合了多重解析度地形模塑,視點相關展示、多重解析度建築物模塑、及鏡頭操縱等技術做飛行模擬應用。 為了構建立體的虛擬環境,我們需要許多模型資料;例如,地形、建築物、車輛等等。如果此虛擬環境中有大量的模型資料,繪圖的效率將會降低。因此我們需要一些技巧來改善繪圖的效率而又不失視覺品質。 在我們的系統中,大型的地形資料和複雜的建築物資料都需要建立成多重解析度的型態。自然的地形模型和人造的建築物模型需要不同的方法來建構其多重解析度的模型。在我們的論文中,地形的多重解析度模塑是使用漸進式網格 (progressive mesh) 產生;而建築物模型則是根據一連串的分割和簡化的步驟產生其多重解析度模型。另外,我們為此系統提供了一個路徑編輯器,能讓我們可以展示和重現飛行路徑。 Urban and suburban scenery visualization system offers the users more realistic presentation and understanding to our environment. Moreover, the users can feel free to walk and fly through the synthetic world to get more information. In this study, we propose a visualization system based on multiresolution terrain modeling, view-dependent browsing, multiresolution building modeling, and other operation functions. To construct a 3D virtual environment, we need many models such as, terrain, buildings, vehicles, and others. If there are huge amount of models in the virtual environment, the rendering efficiency of the visualization system will degrade; thus we need advanced techniques to improve the visualization performance without reducing the visual quality. The multiresolution modeling technique is one way to improve the visualization performance without degrading the visual quality. In the proposed system, huge terrain models as well as the complex building models are need to be simplified and built as multiresolution styles. The natural terrain models and the artificial building models need different techniques to construct the multiresolution models. In this study, the terrain multiresolution models are generated by the method of progressive mesh; the building multiresolution models are constructed by a sequence of separation and simplification processes. Moreover, we provide a path editor for the proposed system such that we can demonstrate or rehearse a fly through simulation.
    显示于类别:[資訊工程研究所] 博碩士論文

    文件中的档案:

    档案 大小格式浏览次数
    0KbUnknown308检视/开启


    在NCUIR中所有的数据项都受到原著作权保护.

    社群 sharing

    ::: Copyright National Central University. | 國立中央大學圖書館版權所有 | 收藏本站 | 設為首頁 | 最佳瀏覽畫面: 1024*768 | 建站日期:8-24-2009 :::
    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - 回馈  - 隱私權政策聲明