| 面向三维重建的视图坐标转换 |
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| 引用本文： | 张爱军,诸昌钤,王喆.面向三维重建的视图坐标转换[J].西南交通大学学报,2001,36(1):57-61. |
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| 作者姓名： | 张爱军 诸昌钤 王喆 |
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| 作者单位： | 西南交通大学计算机与通信工程学院, |
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| 摘 要： | 结合面法几何学和工程制图的投影原理和制图规则，讨论了一二维坐标系下的各视图图形坐标到空间投景坐标的转换策略，通过引入二维半中间坐标系推导出了映射算子，并建立了各视图间对应点坐标在统一二维坐标系下的联动约束关系。
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| 关 键 词： | 坐标转换 工程视图 三维重建 视图坐标 空间投影坐标 映射算子 投影原理 制图规则 |
| 文章编号： | 0258-2724（2001）01-0057-05 |
Coordinates Transformation of Engineering Drawings
for 3D Reconstruction from Orthographic Views |
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| ZHANG Ai jun,ZHU Chang qian,WANG Ji.Coordinates Transformation of Engineering Drawings
for 3D Reconstruction from Orthographic Views[J].Journal of Southwest Jiaotong University,2001,36(1):57-61. |
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| Authors: | ZHANG Ai jun ZHU Chang qian WANG Ji |
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| Abstract: | Coordinates transformation of engineering drawings is the basis proce ss for 3D reconstruction from orthographic views. In this paper, a method is pre sented for segmenting engineering drawings into views and establishing the corre sponding relations of coordinates between them. Two sets of 2.5D coordinate syst ems are introduced as intermediates to relate the 2D original drawing system to the 3D space projection coordinates, and a formal technique is developed for con structing transformation matrices between coordinates. Coordinate constraint b ased driving relations are established in addition between the views. |
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| Keywords: | coordinate transformation r econstruction orthographic projection |
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