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首页> 外文期刊>IEEE Geoscience and Remote Sensing Letters >Phase Analysis of Three-Dimensional Zernike Moment for Building Classification and Orientation in Digital Surface Model
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Phase Analysis of Three-Dimensional Zernike Moment for Building Classification and Orientation in Digital Surface Model

机译：数字表面模型中建筑物分类和定向的三维Zernike矩的相位分析

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摘要

In this letter, we proposed a phase analysis of the 3-D Zernike moment (3D-ZM), to estimate the orientation difference between buildings in a digital surface model (DSM). A 3-D analysis using the DSM is an important way for building reconstruction and many further remote sensing applications. By using the 3D-ZM, we could decompose the 3-D structure of an object in a complex domain. Benefiting from rotation invariance of the amplitude component, the 3D-ZM has excellent performance for object classification. However, the phase component of 3D-ZM is ignored in early research, by which orientation of different objects could be analyzed, and similar buildings (within one class) could be distinguished meticulously, whereas other traditional geometric features may fail to do so. Therefore, we studied the phase analysis of 3D-ZM and introduced a flow frame of orientation-difference estimation. Experimental results illustrated that our method could robustly find the orientation difference between similar buildings, and improvement on accuracy was achieved for building classification and orientation.
机译：在这封信中，我们提出了3-D Zernike矩（3D-ZM）的相位分析，以估计数字表面模型（DSM）中建筑物之间的方向差异。使用DSM进行3D分析是建筑物重建和许多其他遥感应用的重要方法。通过使用3D-ZM，我们可以分解复杂域中对象的3-D结构。得益于幅度分量的旋转不变性，3D-ZM在对象分类方面具有出色的性能。但是，在早期研究中忽略了3D-ZM的相位分量，通过它可以分析不同对象的方向，并且可以细致地区分相似的建筑物（在一类之内），而其他传统的几何特征则可能无法做到。因此，我们研究了3D-ZM的相位分析，并介绍了方向差估计的流程。实验结果表明，我们的方法能够可靠地找到相似建筑物之间的方位差异，并提高了建筑物分类和方位的准确性。

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