(3.238.88.35) 您好！臺灣時間：2021/04/10 20:06

### 詳目顯示:::

:

• 被引用:3
• 點閱:264
• 評分:
• 下載:40
• 書目收藏:0
 Reverse engineering is a technique to reconstruct the CAD model from the three-dimensional measurement points of a physical object. There are many steps for building a CAD model. One of the important steps is segmentation. The goal for segmentation is to separate meshes into smaller regions, where each can be approximated by a single surface. In this study, a triangle mesh segmentation procedure which can eliminate the effect of noise on the meshes is proposed.Three key algorithmic components are presented in more detail: curvature calculation, feature extraction, and mesh skeletonizing. As long as the mesh model is decomposed into small subregions by these algorithms, each subregion of meshes is essentially smooth enough to be used for the reconstruction of the surface model in reverse engineering.
 摘要 IABSTRACT II目錄 III圖目錄 V表目錄 VII第一章 緒論 11.1 前言 11.2 文獻回顧 21.3 研究目的與方法 51.4 論文架構 8第二章 網格模型曲率計算 102.1 前言 102.2 曲面方程式與局部座標設定 102.3 法向量計算與最小平方法 132.4 網格曲率計算 172.5 曲面曲率性質 202.6 曲率計算流程 22第三章 網格幾何邊界辨識 273.1 前言 273.2 邊界辨識方法整合 293.3 網格模型曲率分佈 323.4 網格局部形狀分析 373.5 特徵區域最佳化 44第四章 邊界表示與區域分割 484.1 前言 484.2 翼邊結構 484.3 網格細線化 524.4 多邊形線修整 594.5 網格區域分割 62第五章 網格資料實例應用 665.1 前言 665.2 程式功能介紹 665.3 實例測試 685.3.1 傳統工程物件 685.3.2 自由曲面物件 735.4 分析探討 79第六章 結論與未來展望 826.1 結論 826.2 未來展望 83參考文獻 84
 [1] M. Eck, T. DeRose, T. Duchamp, H. Hoppe, M. Lounsbery, and W. Stuetzle, “Multiresolution Analysis of Arbitrary Meshes”, Proc. SIGGRAPH''95, Los Angeles, CA, Aug.6-11, pp. 173-182, 1995.[2] M. Meyer, M. Desbrun, P. Schroder, and A. H. Barr, “Discrete Differential Geometry Operators for Triangulated 2-Manifolds”, Visualization and Mathematics III, pp. 35-57, 2003.[3] G. Lavoue, F. Dupont, and A. Baskurt, ”Curvature Tensor Based Triangle Mesh Segmentation with Boundary Rectification”, Proc. of International Conference on Computer Graphics, pp. 10-17, 2004.[4] P. Krsek, G. Lukacs, and R. R. Martin, “Algorithms for Computing Curvatures from Range Data”, Mathematics of Surfaces VIII, pp. 1-16, 1998.[5] J. A. Thorpe, “Elementary Topics in Differential Geometry”, pp. 53-92, 1978.[6] N. Gelfand, and L. J. Guibas, “Shape Segmentation Using Local Slippage Analysis”, Eurographics Symposium on Geometry, 2004.[7] M. Vieira, and K. Shimada, “Surface Mesh Segmentation and Smooth Surface Extraction Through Region Growing”, Computer Aided Geometric Design, pp. 771-792, 2005.[8] P. Benko, and T. Varady, “Segmenting Large Point Clouds in Reverse Engineering Conventional Engineering Objects”, Proc. First Hungarian Conference on Computer Graphics and Geometry, pp. 3-69, 2002.[9] P. Benko, R. R. Martin, and T. Varady, “Algorithms for Reverse Engineering Boundary Representation Models”, Computer-Aided Design, Vol. 33, No. 11, pp. 839-851, 2001.[10] A. Hubeli, and M. Gross, “Multiresolution Feature Extraction for Unstructured Meshes”, Proc. of the Conference on Visualization ''01, October 21-26, San Diego, California, 2001.[11] K. Weiler, “Edge-Based Data Structures for Solid Modeling in Curved-Surface Environments”, IEEE Computer Graphics and Applications, Vol. 5, No. I, pp. 21-40, January 1985.[12] S. C. Chapra, “Applied Numerical Methods with Matlab for Engineers and Scientists”, McGraw Hill, 2005.[13] J. J. Koenderink, “Solid Shape”, MIT Press, 1990.[14] 蔡耀震, 賴景義, 鍾永彬, “網格資料特徵分離”, 國立中央大學機械工程研究所, 1998.[15] 張義宏, “光學掃描量測資料之二次曲面特徵分離”, 國立中央大學機械工程研究所碩士論文, 2006.
 電子全文
 國圖紙本論文
 推文當script無法執行時可按︰推文 網路書籤當script無法執行時可按︰網路書籤 推薦當script無法執行時可按︰推薦 評分當script無法執行時可按︰評分 引用網址當script無法執行時可按︰引用網址 轉寄當script無法執行時可按︰轉寄

 1 汽車鈑件之三角網格塊處理與B-spline曲面重建 2 光學掃描量測資料之二次曲面特徵分離 3 基於LOD演算法之3D影像重建加速系統 4 逆向工程重建CAD模型之研究與實例探討 5 三角網格分割與曲面重建於汽車鈑金件之應用 6 以物件為基礎之光達點雲分類 7 電腦輔助設計於齒列矯正系統之應用-齒模區域分割 8 長時段禪定腦電波總覽之系統化方法 9 殘肢3D掃瞄資料點之區域分割方法 10 逆向工程應用於汽車內鈑金件 11 波元轉換用於線上簽名確認系統之研究 12 以花的外觀資料強化花朵辨識率 13 建構於內容基礎上之腦部CT醫學影像搜尋研究

 無相關期刊

 1 三角網格模型之平滑化研究 2 由亂點資料建立三角網格模型之研究 3 立體幾何模型之三角網格處理技術發展 4 曲面模型轉換三角網格模型之研究 5 逆向工程之曲面連續性理論與曲面模型自動化重建技術發展 6 光學掃描量測資料之二次曲面特徵分離 7 逆向工程之網格修復與特徵邊界追蹤技術發展 8 醫學影像之三維顯示與骨組織三角網格重建技術探討 9 三角網格資料定位整合與平滑性補洞之研究 10 三角網格模型偵錯與補洞研究 11 鞋楦逆向CAD模型重建技術探討 12 大量點資料建構B-spline曲線及曲面之逆向工程技術發展 13 逆向工程在汽車外鈑件曲面建構探討 14 三角網格補洞在數位模型上之應用 15 三角網格分割與曲面重建於汽車鈑金件之應用

 簡易查詢 | 進階查詢 | 熱門排行 | 我的研究室