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首页> 外文期刊>IEEE Geoscience and Remote Sensing Letters >Reflective Imaging Solved by the Radon Transform
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Reflective Imaging Solved by the Radon Transform

机译：Radon变换解决的反射成像

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摘要

This letter is concerned with imaging a 3-D scene from a set of 2-D laser images of backscattered intensity without prior knowledge. The interaction between an electromagnetic wave and a medium can be understood and modeled in different ways. In the configuration considered here, the interactions result in a 3-D projection of the scene. After inspection in the measured signal, the reflection data appear as a sum of point spread functions with or without angular limitations. The approach proposed here consists thus in considering reflection data as an incomplete data set of Radon kind used in conventional computerized tomography. Under this approximation, reconstruction techniques, such as the well-known filtered back projection or the Feldkamp algorithm, can be exploited. The advantage of this approach is to provide isosurfacic reconstructions of the scene from reflective data performed with real-time computation times and without prior information. Simulation results on a real laser tomographic data set attest of the strength and of the relevancy of the proposed method.
机译：这封信涉及在没有先验知识的情况下从一组反向散射强度的2D激光图像中对3D场景进行成像。电磁波和介质之间的相互作用可以通过不同的方式理解和建模。在此处考虑的配置中，交互会导致场景的3D投影。在对测量信号进行检查之后，反射数据显示为有或没有角度限制的点扩展函数的总和。因此，这里提出的方法在于将反射数据视为常规计算机断层摄影中使用的Radon类的不完整数据集。在这种近似下，可以利用重构技术，例如众所周知的滤波反投影或Feldkamp算法。这种方法的优点是可以根据反射数据提供场景的等表面重建，而反射数据是在实时计算时间且没有先验信息的情况下执行的。在真实的激光层析成像数据集上的仿真结果证明了所提出方法的强度和相关性。

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