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姓名	吳宗謙(Tsung-Chien Wu)  查詢紙本館藏	畢業系所	機械工程學系
論文名稱	以二維影像重建三維彩色模型之色彩紋理貼圖技術與三維模型重建系統發展 (Development of Texture Mapping Technique and 3D Photo-Modeling System for the Reconstruction of 3D Color Model via Two-Dimensional Photos)
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摘要(中)	三維彩色模型是由三維網格模型以及物體的紋理資訊結合所組成，此種模型已經被廣泛應用於計算幾何的領域中，然而在實際的應用上如何將物體的色彩資訊轉換到三維網格模型上需要更進一步的探討。色彩紋理貼圖常被應用於建立物體的三維彩色模型，透過三維網格模型與相對應物體色彩紋理貼圖的合併來建立三維彩色模型，然而在彩色模型中，色彩紋理貼圖的解析度與品質非常的重要也需要謹慎的處理。本研究的目的為產生高品質的色彩紋理貼圖來建立真實的三維彩色模型以及發展整合性物體三維模型重建系統；前者需要一系列的技術來產生，包含網格分群、保角網格參數化、網格包裝、物體影像紋理轉換以及色彩紋理最佳化，另外網格品質與色彩紋理品質會被特別強調以產生高品質的色彩紋理貼圖，其中網格包裝與色彩紋理最佳化的目標為提升色彩紋理貼圖的品質。後者為合併影像拍攝與三維模型重建兩個模組以建立系統，其中建立了簡易的系統操作流程。本研究提出許多實際的例子來證明所提方法的可行性。
摘要(英)	A three-dimensional (3D) color model is a 3D mesh model with the texture information of an object. It has been widely used in computational geometry. However, the transferring of the color information from the object photos to 3D mesh model needs to be studied for practical implementation. The texture mapping technique is commonly used to create the 3D color model of an object via combining a 3D mesh model with the object’s texture map. However, the resolution and quality of the texture on the color model is important and requires a careful consideration. The aims of this study are to generate the high quality texture map to obtain the photorealistic 3D color model and to develop an integrated system for the reconstruction the 3D color model of the object. The former is based on a series of techniques, including mesh partitioning, conformal mesh parameterization, mesh packing, texture transferring from the object photos and texture optimization. In addition, both mesh quality and texture quality are investigated during the generation to reach the high quality texture map. The mesh packing and texture optimization processes are aimed at promoting the quality of the texture map. The latter is accomplished based on two systems which are photo capturing and 3D photo-modeling. The simple operation procedure is accomplished. Several realistic examples are also presented to demonstrate the feasibility of the proposed methods.
關鍵字(中)	★ 色彩紋理貼圖 ★ 三維彩色模型 ★ 網格分群 ★ 保角網格參數化 ★ 網格包裝 ★ 色彩紋理最佳化	關鍵字(英)	★ Texture Mapping ★ 3D color model ★ Mesh partitioning ★ Conformal mesh parameterization ★ Mesh packing ★ Texture optimization
論文目次	摘要 I ABSTRACT II 致謝 III CONTENT IV FIGURE LIST VI TABLE LIST X CHAPTER 1 INTRODUCTION 1 1.1 Introduction 1 1.2 Literature review 3 1.2.1 Mesh partitioning 3 1.2.2 Mesh parameterization 4 1.2.3 Texture mapping 6 1.3 Research objectives and methodology 16 1.4 Organization of the dissertation 20 CHAPTER 2 MESH PARTITIONING AND PARAMETERIZATION 21 2.1 Introduction 21 2.2 Mesh partitioning 22 2.3 Mesh parameterization 29 2.3.1 Mesh unwrapping 29 2.3.2 Mesh packing 35 2.4 Results and discussion 38 2.5 Summary 47 CHAPTER 3 TEXTURE MAPPING AND OPTIMIZATION 48 3.1 Introduction 48 3.2 Texture mapping 50 3.2.1 Mesh grouping for photos 50 3.2.2 Texture extraction and transferring for meshes 53 3.3 Texture optimization 58 3.4 Results and discussion 63 3.5 Summary 83 CHAPTER 4 3D PHOTO-MODELING SYSTEM 84 4.1 Introduction 84 4.2 Improvement of modeling process 85 4.2.1 Camera calibration 85 4.2.2 Camera alignment 89 4.3 Operation of modeling system 95 4.4 Summary 99 CHAPTER 5 CONCLUSION AND FUTURE STUDY 100 5.1 Conclusion 100 5.1.1 Mesh partitioning and parameterization 100 5.1.2 Texture mapping and optimization 101 5.1.3 3D photo-modeling system 101 5.2 Future work 102 REFERENCE 104
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指導教授	賴景義 李朱育(Jiing-Yih Lai Ju-Yi Lee)	審核日期	2019-6-18
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