POLYGON PARTITION AND SHAPE RECTIFICATION FOR AUTOMATIC GENERATION OF 3D BUILDING MODEL
POLYGON PARTITION AND SHAPE RECTIFICATION FOR AUTOMATIC GENERATION OF 3D BUILDING MODEL
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自动生成 3D 建筑模型的多边形分割和形状校正
DOI：
10.1109/tencon.2016.7848441
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发表时间：
2016
期刊：
影响因子：
--
通讯作者：
Takahiro Murase
中科院分区：
文献类型：
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作者：
Kenichi Sugihara;Takahiro Murase
3D城市模型在城市规划和游戏行业中非常重要。然而，创建这些3D模型是劳动密集型的。为了自动化繁琐的步骤，提出了一种GIS（地理信息系统）和CG（计算机图形学）集成系统，用于基于数字地图上的建筑多边形自动生成3D建筑模型。这些多边形通常是正交的。一个复杂的正交多边形可以划分成一组矩形。建议的集成系统划分成一组矩形的正交建筑多边形和放置在这些矩形的矩形屋顶和盒形建筑体。由于技术人员使用数字化仪手动绘制这些多边形，因此根据航拍照片，并非所有建筑物多边形都精确正交。但是，当放置一组盒子作为用于创建建筑物的建筑物主体时，如果建筑物多边形不是精确正交的，则这些盒子之间可能存在间隙或重叠。本文提出了一种新的建筑物多边形的分割和纠正方法。
A 3D urban model is important in urban planning and game industries. However, creating these 3D models are labor-intensive. In order to automate laborious steps, a GIS (Geographic Information System) and CG (Computer Graphics) integrated system is proposed for automatically generating 3D building models, based on building polygons on a digital map. These polygons are usually orthogonal. A complicated orthogonal polygon can be partitioned into a set of rectangles. The proposed integrated system partitions orthogonal building polygons into a set of rectangles and places rectangular roofs and box-shaped building bodies on these rectangles. Since technicians are drawing these polygons manually with digitizers, depending on aerial photos, not all building polygons are precisely orthogonal. But, when placing a set of boxes as building bodies for creating the buildings, there may be gaps or overlaps between these boxes if building polygons are not precisely orthogonal. In this paper, the new methodology is proposed for partitioning and rectifying building polygons.