| 城区三维景观重建中的建筑物提取 |
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| 引用本文： | 郭飞,郭树东.城区三维景观重建中的建筑物提取[J].交通科技与经济,2009,11(2):49-50. |
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| 作者姓名： | 郭飞 郭树东 |
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| 作者单位： | 1. 哈尔滨市勘察测绘研究院,黑龙江哈尔滨,150010
2. 黑龙江工程学院测绘工程系,黑龙江哈尔滨,150050 |
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| 摘 要： | 采用包含建筑物高程信息的DEM数据进行地形建模时，依次连结相邻网格点为多边形的绘制方式会带来建筑物墙面倾斜，建筑物与地形混淆的情况。针对这一问题，利用建筑物顶点与地形顶点之间具有较大高度差的特点，结合建筑物的几何特征，提出一种在DEM数据中提取建筑物的算法。实验结果证明，利用该算法重建出的城区三维景观具有更为逼真的显示效果。
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| 关 键 词： | 三维景观 数字高程模型 建筑物提取 |
Extraction of Buildings in Reconstruction of City Three-dimensional Scene |
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| GUO Fei,GUO Shu-dong.Extraction of Buildings in Reconstruction of City Three-dimensional Scene[J].Technology & Economy in Areas of Communications,2009,11(2):49-50. |
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| Authors: | GUO Fei GUO Shu-dong |
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| Institution: | 1.Harbin Prospecting and Mapping Institute;Harbin 150010;China;2.Department of Surveying and Mapping;Heilongjiang Institute of Technology;Harbin 150050;China |
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| Abstract: | This paper presented a method of extracting buildings from digital elevation model data by utilizing the great altitude difference between building and terrain vertices,and the geometry characteristics of buildings.The experimental results showed that this approach made the reconstructed three-dimensional scene vivid. |
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| Keywords: | three-dimensional scene digital elevation model building extraction |
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