調適性動態載入之多重解析度地形展示

以作者查詢圖書館館藏

、以作者查詢臺灣博碩士

、以作者查詢全國書目

、勘誤回報

、線上人數：27

、訪客IP：3.145.57.5

姓名

李岳倫(Yue-Lun Lee) 查詢紙本館藏

畢業系所

資訊工程學系

論文名稱

調適性動態載入之多重解析度地形展示
(Adaptive Dynamic Loading with Multiresolution Terrain Visualization)

相關論文

★ 適用於大面積及場景轉換的視訊錯誤隱藏法	★ 虛擬觸覺系統中的力回饋修正與展現
★ 多頻譜衛星影像融合與紅外線影像合成	★ 腹腔鏡膽囊切除手術模擬系統
★ 飛行模擬系統中的動態載入式多重解析度地形模塑	★ 以凌波為基礎的多重解析度地形模塑與貼圖
★ 多重解析度光流分析與深度計算	★ 體積守恆的變形模塑應用於腹腔鏡手術模擬
★ 互動式多重解析度模型編輯技術	★ 以小波轉換為基礎的多重解析度邊線追蹤技術(Wavelet-based multiresolution edge tracking for edge detection)
★ 基於二次式誤差及屬性準則的多重解析度模塑	★ 以整數小波轉換及灰色理論為基礎的漸進式影像壓縮
★ 建立在動態載入多重解析度地形模塑的戰術模擬	★ 以多階分割的空間關係做人臉偵測與特徵擷取
★ 以小波轉換為基礎的影像浮水印與壓縮	★ 外觀守恆及視點相關的多重解析度模塑

檔案

[Endnote RIS 格式]

[Bibtex 格式]

[相關文章]

[文章引用]

[完整記錄]

[館藏目錄]

[檢視]

[下載]

本電子論文使用權限為同意立即開放。
已達開放權限電子全文僅授權使用者為學術研究之目的，進行個人非營利性質之檢索、閱讀、列印。
請遵守中華民國著作權法之相關規定，切勿任意重製、散佈、改作、轉貼、播送，以免觸法。

摘要(中)

一般來說，把一大塊地形模型載入到記憶體做展示是不切實際的。在此，我們將大區域地形模型切割成許多矩形小地塊，並且動態地載入所需的小地塊到記憶體中展示。在增進視覺效能而不減少視覺品質的要求下，每個地形區塊各自擁有變動的解析度，解析度會自動根據螢幕空間誤差 (screen-space error) 作調整；也就是每個地形區塊都有視點相關多重解析度模塑 (view-dependent multiresolution modeling) 的功能。在這種情形下，當相鄰地塊有不同解析度時，在邊界就可能產生破裂。在此我們提出重新三角化邊界 (re-triangulated boundary method) 的方法來克服這個問題。
在3D虛擬環境瀏覽的應用中，視點可能會靠近或遠離地形模型，而視野範圍也就跟著改變。為了進一步增進視覺效能及品質，我們讓地形區塊數量可以隨著視點高度自動改變。
在只有一個處理器的電腦上執行3D飛行模擬，當載入地形區塊時，虛擬環境的飛行瀏覽經常會被暫停。為了消除這個現象，我們依據最近的飛行方向來預測飛行路徑，然後利用處理器執行的空檔預先載入可能需要的地形區塊。

摘要(英)

For a large terrain model, it is generally impractical to load the whole terrain model into the main memory. We here partition a large terrain model into blocks and then dynamically load the necessary terrain blocks into the memory for rendering. To improve the visualization performance without reducing the visual quality, every terrain block has its own variant resolution and the variable resolution is automatically adapted based on the screen-space error. That is, every terrain block possesses the view-dependent multiresolution modeling function. In such a case, cracks between two adjacent blocks with different resolutions are always generated. We here propose a re-triangulated boundary method to overcome the problem.
During fly-through applications, the viewpoint may move toward or away from the terrain model, then the view-scope is changed. To further improve the visualization performance, the active block number is automatically adapted according to the height of the viewpoint.
In a one-processor computer, the fly through always suspends during loading necessary terrain blocks. To reduce the phenomenon, we predict the flight path to pre-load the necessary blocks in advance based on the last flying directions.

關鍵字(中)

★ 地形展示
★ 動態載入

關鍵字(英)

★ Multiresolution Terrain
★ Dynamic Loading

論文目次

摘要 I
誌謝 II
目錄 III
第一章緒論一
第二章相關研究二
第三章重新三角化邊界及視點相關三
第四章調適性動態載入四
第五章飛行路徑預測五
第六章實驗六
第七章結論七
附錄英文版論文八

參考文獻

[1] Chang, J.-H., Adaptive Multiresolution Terrain Modeling and Dynamic-loading for Flight Simulation, Master’s thesis, Inst. of Computer Science and Information Engineering, National Central University, Chung-li, Taiwan, 2002.
[2] Cohen, J., A. Varshney, D. Manocha, G. Turk, H. Weber, P. Agarwal, F. Brooks, and W. Wright, “Simplification envelops,” in Proc. SIGGRAPH’96, New Orleans, LA, Aug.4-9, 1996, pp.119-128.
[3] Duchaineau, M., M. Wolinsky, D. E. Sigeti, M. C. Miller, C. Aldrich, and M. B. Mineev-Weinstein, “ROAMing terrain: real-time optimally adapting meshes,” in Proc. Visualization’97, Phoenix, AZ, Oct.19-24, 1997, pp.81-88.
[4] Erikson, C., Polygonal Simplification: An Overview, Tech. Report of Dept. Com. Sci., Univ. North Carolina at Chapel Hill, TR96-016, 1996.
[5] Erikson, C. and D. Manocha, Simplification Culling of Static and Dynamic Scene Graphs, Tech. Report 98-009, Computer Science Dept., University of North Carolina, Chapel Hill, 1998.
[6] Garland, M. and P. S. Heckbert, “Multiresolution modeling for fast rendering,” in Proc. Graphics Interface’94, Banff, Alberta, Canada, May, 1994, pp.43-50.
[7] Garland, M. and P. S. Heckbert, Fast Polygonal Approximation of Terrain and Height Fields, Tech. Report CMU-CS-95-181, Carnegie Mellon Univ., School of Computer Science, Sep. 1995.
[8] Garland, M. and P. S. Heckbert, “Surface simplification using quadric error metrics,” in Proc. SIGGRAPH`97, Los Angeles, CA, Aug.3-8, 1997, pp.209-216.
[9] Garland, M., A. Willmott, and P. Heckbert. “Hierarchical face clustering on polygonal surfaces,” in Proc. of ACM Sym. on Interactive 3D Graphics, Mar. 2001.
[10] Grabner, M., “Feature preservation in view-dependent multiresolution meshes,” in Proc. of Spring Conf. on Computer Graphics, Budmerice, Slovakia, 2002, pp.153-162.
[11] Hoppe, H., T. DeRose, T. Duchamp, J. McDonald, and W. Stuetzle, “Mesh optimization,” in Proc. SIGGRAPH’93, Anaheim, CA, Aug.1-6, 1993, pp.19-26.
[12] Hoppe, H., “Progressive meshes,” in Proc. SIGGRAPH’96, New Orleans, LA, Aug.4-9, 1996, pp.99-108.
[13] Hoppe, H., “View-dependent refinement of progressive meshes,” in Proc. SIGGRAPH’97, Los Angeles, CA, Aug.3-8, 1997, pp.189-198.
[14] Hoppe, H., Efficient Implementation of Progressive Meshes, Tech. Report of Microsoft Research, Microsoft Corporation, MSR-TR-98-02, Jan. 1998.
[15] Hoppe, H., “Smooth view-dependent level-of-detail control and its application to terrain rendering,” in IEEE Visualization’98, Research Triangle Park, NC, Oct.18-23, 1998, pp.35-42.
[16] Huang, C.-C., View-dependent Progressive-mesh Terrain Browsing with Dynamic Loading, Master’s thesis, Inst. of Computer Science and Information Engineering, National Central University, Chung-li, Taiwan, 1999.
[17] Huang, W.-K., A Tactical Simulation System with Dynamic-loading Multiresolution Terrain Modeling, Master’s thesis, Inst. of Computer Science and Information Engineering, National Central University, Chung-li, Taiwan, 2001.
[18] Klein, R., “Multiresolution representations for surfaces meshes,” in Proc. SIGGRAPH’97, Los Angeles, CA, Aug.3-8, 1997, pp.1-19.
[19] Klein, R., D. Cohen-Or, and T. Huttner, “Incremental view-dependent multiresolution triangulation of terrain,” in Proc. Fifth Pacific Conf. Computer Graphics & Applications, Seoul, Korea, Oct.13-16, 1997, pp.127-136.
[20] Lindstrom, P., D. Koller, W. Ribarsky, L. F. Hodges, N. Faust, and G. A. Turner, “Real-time, continuous level of detail rendering of height fields,” in Proc. SIGGRAPH’96, New Orleans, LA, Aug.4-9, 1996, pp.109-118.
[21] Liu, S.-C., View-dependent Multiresolution Modeling with Appearance Attributes Using Quadric Error Metrics, Master’s thesis, Inst. of Computer Science and Information Engineering, National Central University, Chung-li, Taiwan, 2001.
[22] Luebke, D. and C. Erikson., “View-dependent simplification of arbitrary polygonal environments,” in Proc. SIGGRAPH’97, Los Angeles, CA, Aug.3-8, 1997, pp.199-208.
[23] Rossignac, J., and P. Borrel, “Multiresolution 3D approximations for rendering complex scenes,” in Geometric Modeling in Computer Graphics: Methods and Applications, Springer Verlag, 1993, pp.455-465.
[24] Samet, H., “The quadtree and related hierarchical data structures,” ACM Computing Surveys, Vol.16, No.2, pp.187-260, 1984.
[25] Schroeder, W. J., J. A. Zarge, and W. E. Lorensen, “Decimation of triangle meshes,” in Proc. SIGGRAPH’92, Vol.26, No.2, Chicago, IL, Jul.26-31, 1992, pp.65-70.
[26] Soucy, M. and D. Laurendeau, “Multiresolution surface modeling based on hierarchical triangolation,” Computer Vision and Understanding, Vol.63, No.1, pp.1-14, 1996.
[27] Terrex, An Introduction to SmatrMeshTM, Terrain Experts Inc., http://www.terrex.com/Downloads/SmartMesh.pdf
[28] Turk, G., “Re-tiling polygonal surfaces,” in Proc. SIGGRAPH’92, Vol. 26, No.2, Chicago, IL, Jul.26-31, 1992, pp.55-64.
[29] Xia, J. C., J. Ei-Sana, and A. Varshney, “Adaptive real-time level-of-detail-based rendering for polygonal models,” IEEE Trans. on Visualization and Computer Graphics, Vol.3, No.2, pp.171-183, 1997.
[30] Yang, T.-S., Dynamic-loading Multiresolution Terrain Modeling in A Flight Simulation System, Master’s thesis, Inst. of Computer Science and Information Engineering, National Central University, Chung-li, Taiwan, 2000.
[31] Zhao, Y., J. Zhou, J.-Y. Shi, and Z.-G. Pan, “A fast algorithm for large scale terrain walkthrough,” in Proc. CAD/Graphics, Kunming, China, Aug.22-24, 2001, pp.123-126.

指導教授

曾定章(Yue-Lun Lee)

審核日期

2005-7-19

推文