跳到主要內容

臺灣博碩士論文加值系統

(3.236.68.118) 您好!臺灣時間:2021/07/31 20:12
字體大小: 字級放大   字級縮小   預設字形  
回查詢結果 :::

詳目顯示

: 
twitterline
研究生:陳文祥
研究生(外文):Wen Hsiang Chen
論文名稱:以L-System為基礎的植物動畫生成手法
論文名稱(外文):The synthesis of CG Plants based on L-System
指導教授:陳履恆
學位類別:碩士
校院名稱:國立暨南國際大學
系所名稱:資訊工程學系
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2007
畢業學年度:95
語文別:中文
論文頁數:41
中文關鍵詞:L-system碰撞偵測植物生成
外文關鍵詞: L-system collision detection generate plants
相關次數:
  • 被引用被引用:0
  • 點閱點閱:182
  • 評分評分:
  • 下載下載:20
  • 收藏至我的研究室書目清單書目收藏:0
在目前的CG領域中產生擬真的植物影像是極為重要的議題,至於要如何產生擬真的植物影像則應該著重在rendering的技巧和植物形態特徵的真實呈現上,在植物的呈現上,我改進了植物的莖在呈現上不平滑的現象,使用BezierCurve做出來平順的branch,以較好的方式來產生branch連續的呈現,而最重要的是我們改進了原有的可在加入環境變數,環境影響的植物影像卻我這些論文所關心的,如何為一棵由L-System所產生出來的植物影像具有與環境互動產生如搖晃、斷枝、擠壓變形等等…,這是我們這篇論文所關心的,也因為此,我決定使用k-dops檢測的方式來虛擬出植物和環境之間的互動關系,k-dops是一種正確度極高的碰撞檢測方式,在虛擬實境這個議題上,碰撞檢測是一種重要的基礎,在了解兩個model之間的collision detection,在判斷model自身的self-detection,這都是重要的一個了解model 與model甚至是自身與自身互動的方式,因此我們此篇論文就是將k-dops加入L-System所生成的文法植物當中,使之能夠和環境產生準確度高的互動。
Abstract
Rendering photorealistic images of plants is always an important research issue in the field of computer graphics. To achieve this research goal both rendering technique and simulation of morphology should be considered. I improve unsmooth stem to smooth stem using BezierCurve. It’s important that environment variable affect plants. I decide to use k-dops collision detection to simulate interaction in plants and environment. k-dops is a kind of high quality collision detection theory. So I add k-dops into L-System plants to make interaction in environment and plants with high quality.
內容目錄
誌謝………………………………………………………………………II
中文摘要…………………………………………………………………III
Abstract…………………………………………………………………IV目錄………………………………………………………………………V
第一章  緒論…………………………………………………………1
1.1研究背景……………………………………………………………1
1.2研究動機與目的……………………………………………………2
1.3研究方法……………………………………………………………3
第二章  文獻探討和相關研究………………………………………5
2.1 L-System的研究……………………………………………………5
第三章 理論基礎……………………………………………………7
3.1 L-System理論基礎……………………………………………………7
3.2Collision Detection (CD)理論基礎…………………………………9
第四章 系統設計……………………………………………………12
4.1系統架構………………………………………………………………12
4.2 系統流程和操作流程………………………………………………14
第五章 系統實作……………………………………………………18
5.1 匯入的檔案…………………………………………………………18
5.1.1 文法描述檔………………………………………………………18
5.1.2 3D植物器官模型的取得…………………………………………19
5.2 植物外觀的呈成………………………………………………23
5.2.1 莖的貼合…………………………………………………………23
5.2.2 葉子的貼合………………………………………………………28
5.2.2 花的貼合………………………………………………………28
5.4 結果影像…………………………………………………………29
第六章 結論…………………………………………………………31
參考文獻……………………………………………………………33
[1]G. V. G. Baranoski and J. G. Rokne. An algorithmic reflectance and transmittance model for plant tissue. Computer Graphics Forum, Volume 16, Issue 3, pages 141 – 150, 1997.
[2]G. V. G. Baranoski and J. G. Rokne. Efficiently simulating scattering of light by leaves. The Visual Computer 17(8), pages 491 – 505, 2001.
[3]F. Boudon, P. Prusinkiewicz, P. Federl, C. Godin and R. Karwowski. Interactive design of bonsai tree models. Computer Graphics Forum. Proceedings of Eurographics, Volume 22, Number 3, pages 591 – 599, September 2003.
[4]O. Deussen, P. Hanrahan, B. Lintermann, R. Měch, M. Pharr, and P. Prusinkiewicz. Realistic modeling and rendering of plant ecosystems. Proceedings of the 25th annual conference on Computer graphics and interactive techniques, pages 275 – 286, July 1998.
[5]O. Deussen, C. Colditz, M. Stamminger, and George Drettakis. Interactive Visualization of Complex Plant Ecosystems. Proceedings of the conference on Visualization '02, pages 219 – 226, October 2002.
[6]R. Green. Spherical Harmonic Lighting: The Gritty Details. Game Developers' Conference, San Jose, CA, March 2003.
[7]T. Ijiri, S. Owada, M. Okabe, and T. Igarashi. Floral diagrams and inflorescences: interactive flower modeling using botanical structural constraints. ACM Transactions on Graphics (TOG), Volume 24, Issue 3, pages 720 – 726, July 2005.
[8]H. W. Jensen, S. R. Marschner, M. Levoy, and P. Hanrahan. A practical model for subsurface light transport. Proceedings of the 28th annual conference on Computer graphics and interactive techniques, pages 511 – 518, August 2001.
[9]G. Kokai, Z. Toth, and R. Vanyi. Evolving artificial trees described by parametric L-systems. 1999 IEEE Canadian Conference on Electrical and Computer Engineering, Volume 3, pages 1722 – 1727, May 1999.
[10]A. Lindenmayer and G. Rozenberg. Developmental systems and languages. Proceedings of the fourth annual ACM sumposium on Theory of computing, pages 214 – 221, May 1972.
[11]B. Lintermann and O. Deussen. Interactive Modeling of Plants. IEEE Computer Graphics and Applications, Volume 19, pages 56 – 65, January 1999.
[12]F. E. Nicodemus, J. C. Richmond, J. J. Hsia, I. W. Ginsberg, and T. Limperis. Geometric considerations and nomenclature for reflectance. Monograph 161, National Bureau of Standards (US), October 1977.
[13]J. L. Power, A.J. B. Brush, P. Prusinkiewicz, and D. H. Salesin. Interactive arrangement of botanical L-system models. Proceedings of the 1999 symposium on Interactive 3D graphics, pages 175 – 182, April 1999.
[14]P. Prusinkiewicz, A. Lindenmayer, and J. Hanan. Development models of herbaceous plants for computer imagery purposes. ACM SIGGRAPH Computer Graphics, Proceedings of the 15th annual conference on Computer graphics and interactive techniques’88, Volume 22, Issue 4, pages 141 – 150, June 1988.
[15]P. Prusinkiewicz, M. S. Hammel, and E. Mjolsness. Animation of plant development. Proceedings of the 20th annual conference on Computer graphics and interactive techniques, pages 351 – 360, September 1993.
[16]P. Prusinkiewicz, L. M¨undermann, R. Karwowski, and B. Lane. The use of positional information in the modeling of plants. Proceedings of the 28th annual conference on Computer graphics and interactive techniques, pages 289 – 300, August 2001.
[17]R. Ramamoorthi and P. Hanrahan. On the relationship between radiance and irradiance: Determining the illumination from images of a convex lambertian object. Journal of the Optical Society of America (JOSA A), Volume 18, 10, pages 2448 – 2459, October 2001.
[18]R. Ramamoorthi and P. Hanrahan. An efficient representation for irradiance environment maps. Proceedings of the 28th annual conference on Computer graphics and interactive techniques, pages 497 – 500, August 2001.
[19]W. T. Reeves and R. Blau. Approximate and probabilistic algorithms for shading and rendering structured particle systems. ACM SIGGRAPH Computer Graphics, Proceedings of the 12th annual conference on Computer graphics and interactive techniques, Volume 19, Issue 3, pages 313 – 322, July 1985.
[20]M. Renton, J. Hanan, and P. Kaitaniemi. The inside story: including physiology in structural plant models. Proceedings of the 1st international conference on Computer graphics and interactive techniques in Australasia and South East Asia, pages 95 – ff, February 2003.
[21]A. Runions, M. Fuhrer, B. Lane, P. Federl, A. G. Rolland-Lagan, and P. Prusinkiewicz. Modeling and visualization of leaf venation patterns. ACM Transactions on Graphics (TOG), Volume 24, Issue 3, pages 702 – 711, July 2005.
[22]P. P. Sloan, J. Kautz, and J. Snyder. Precomputed radiance transfer for real-time rendering in dynamic, low-frequency lighting environments. ACM Transactions on Graphics (TOG) , Proceedings of the 29th annual conference on Computer graphics and interactive techniques SIGGRAPH '02, Volume 21, Issue 3, pages 527 – 536, July 2002.
[23]A. R. Smith. Plants, fractals, and formal languages. ACM SIGGRAPH Computer Graphics. Proceedings of the 11th annual conference on Computer graphics and interactive techniques, Volume 18, Issue 3, pages 1 – 10, January 1984.
[24]C. Soler, F. X. Sillion, F. Blaise, and P. Dereffye. An efficient instantiation algorithm for simulating radiant energy transfer in plant models. ACM Transactions on Graphics (TOG), Volume 22, Issue 2, pages 204 – 233, April 2003.
[25]L. Wang, W. Wang, J. Dorsey, X. Yang, B. Guo, and H. Y. Shum. Real-time rendering of plant leaves. ACM Transactions on Graphics (TOG), Volume 24 Issue 3, pages 712 – 719, July 2005.
[26]A. Watt. 3D Computer Graphics. Third Edition, Addison Wesley, U.S.A., 2000.
QRCODE
 
 
 
 
 
                                                                                                                                                                                                                                                                                                                                                                                                               
第一頁 上一頁 下一頁 最後一頁 top
無相關論文