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Urban scene analysis from SAR image sequences

机译:SAR图像序列的城市场景分析

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This paper considers the problem of target delineation in SAR images. A novel technique involving multiple active contours evolving simultaneously is developed and tested using real radar data. In particular, a technique referred to as multiple hypothesis delineation, in which contours can be in several states simultaneously, is developed and shown to lead to considerable improvement in convergence time and delineation accuracy. The technique is applied to two different SAR image applications, the delineation of multiple targets in close proximity, and the automatic estimation of building dimensions by delineation of shadows in a sequence of SAR images of an urban scene. Finally, the incorporation of the delineation algorithms in a software tool enabling rapid interactive building dimension estimation is briefly described.
机译:本文考虑了SAR图像中的目标描绘问题。使用实际雷达数据开发并测试了一种涉及同时演变的多个活动轮廓的新颖技术。特别地,发展了一种被称为多重假设描绘的技术,在该技术中轮廓可以同时处于几种状态,并且显示出导致收敛时间和描绘精度的显着改善。该技术已应用于两种不同的SAR图像应用程序:非常接近地描绘多个目标;通过描绘城市场景的一系列SAR图像中的阴影来自动估计建筑物的尺寸。最后,简要介绍了将轮廓描述算法合并到能够快速进行交互式建筑尺寸估算的软件工具中。

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