Robust Reconstruction of Building Facades for Large Areas Using Spaceborne TomoSAR Point Clouds
Robust Reconstruction of Building Facades for Large Areas Using Spaceborne TomoSAR Point Clouds
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DOI：
10.1109/tgrs.2014.2327391
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发表时间：
2015-02-01
影响因子：
8.2
通讯作者：
Zhu, Xiao Xiang
中科院分区：
文献类型：
--
作者：
Shahzad, Muhammad;Zhu, Xiao Xiang
利用现代米分辨率合成孔径雷达（SAR）传感器和先进的多程干涉技术（如层析成像SAR反演（TomoSAR））提供的数据，现在可以从空间以非常高的细节水平重建城市基础设施的形状并监测其运动。丰富信息的检索使我们能够更进一步地生成4-D（甚至更高维）动态城市模型，即，城市模型，可以将时间（运动）行为沿着与3-D信息结合。受这些机会的激励，作者提出了一种方法，首先尝试从这类数据中重建立面。这种方法适用于只有几栋建筑物的小区域。然而，对于整个城市区域的自动重建，需要一个更强大的和全自动的方法。在本文中，我们提出了一个完整的扩展方法，自动（参数）重建建筑物立面4-D TomoSAR点云数据，并特别关注大面积的鲁棒重建。所提出的方法进行了说明和验证的例子，使用TomoSAR点云生成的一个堆栈的TerraSAR-X高分辨率聚光灯图像从上升轨道覆盖约2公里（2）的高层建筑地区的拉斯维加斯。
With data provided by modern meter-resolution synthetic aperture radar (SAR) sensors and advanced multipass interferometric techniques such as tomographic SAR inversion (TomoSAR), it is now possible to reconstruct the shape and monitor the undergoing motion of urban infrastructures on the scale of centimeters or even millimeters from space in very high level of details. The retrieval of rich information allows us to take a step further toward generation of 4-D (or even higher dimensional) dynamic city models, i.e., city models that can incorporate temporal (motion) behavior along with the 3-D information. Motivated by these opportunities, the authors proposed an approach that first attempts to reconstruct facades from this class of data. The approach works well for small areas containing only a couple of buildings. However, towards automatic reconstruction for the whole city area, a more robust and fully automatic approach is needed. In this paper, we present a complete extended approach for automatic (parametric) reconstruction of building facades from 4-D TomoSAR point cloud data and put particular focus on robust reconstruction of large areas. The proposed approach is illustrated and validated by examples using TomoSAR point clouds generated from a stack of TerraSAR-X high-resolution spotlight images from ascending orbit covering an approximately 2-km(2) high-rise area in the city of Las Vegas.