Three-dimensional tomographic imaging of ocean mines from real and simulated lidar returns
Three-dimensional tomographic imaging of ocean mines from real and simulated lidar returns
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根据真实和模拟激光雷达回波对海洋矿山进行三维层析成像
DOI：
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发表时间：
2002
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影响因子：
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通讯作者：
A. Singer
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文献类型：
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作者：
Nail Çadalli;P. J. Shargo;D. Munson;A. Singer
机载激光雷达为水下目标的探测和定位提供了一种有效的方法，传输的激光可以穿透水-气界面，照射水柱内的散射体，并对散射产生的光场进行采集和处理。在这里，我们考虑使用从特定水域的不同观测角度收集的激光雷达数据来成像感兴趣的对象。将激光雷达的回波解释为三维反射率场的层析投影，我们将问题描述为三维层析图像重建问题。我们展示了真实数据集和合成数据集的层析重建。真实的数据是由洛克希德-桑德斯激光雷达系统在美国海军的一次实地测试中收集的。合成数据是通过使用精确的统计模型产生的，该模型与多次散射相关。
Airborne lidar provides an effective method for detection and localization of underwater objects, where the transmitted laser beam can penetrate the air-water interface and illuminate the scatterers within the water column, and the optical field generated by this scattering can be collected and processed. Here, we consider the use of lidar data collected form different observation angles of a particular water volume to image objects of interest. Interpretation the lidar returns as tomographic projections of a 3D reflectivity field, we formulate the problem as a 3D tomographic image reconstruction problem. We show tomographic reconstructions from both real and synthetic data sets. The real dat was collected by a Lockheed-Sanders lidar system in a US Navy field test. The synthetic data is produced by using an accurate statistical model that incorprates multiple scattering.