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首页> 外文期刊>Geoscience and Remote Sensing Letters, IEEE >Automatic Recognition of Isolated Buildings on Single-Aspect SAR Image Using Range Detector
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Automatic Recognition of Isolated Buildings on Single-Aspect SAR Image Using Range Detector

机译：使用距离检测器在单方面SAR图像上自动识别孤立建筑物

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摘要

Man-made building objects mostly with vertical wall structures may present distinct scattering patterns, e.g., wall/roof upfront scattering, wall-ground double scattering, etc., along the range dimension in high-resolution synthetic aperture radar (SAR) images. In this letter, a 1-D detector, referred to as the “range detector,” is presented for building detection, which operates only along the range direction. Experiments show that this range detector can effectively detect and extract the footprint of the illuminated wall of a cuboid building, with which the outline of the building image can be captured by marching the footprint toward radar. This approach is applied to an airborne Pi-SAR image of Sendai, Japan, and more than 80% of the buildings can be identified. The building height and length are also estimated, and the errors are found around 4–5 m based on optical image.
机译：在高分辨率合成孔径雷达（SAR）图像中，大多数建筑物具有垂直墙结构的人造建筑对象可能会沿着距离维度呈现不同的散射模式，例如墙/屋顶前向散射，墙地双重散射等。在这封信中，提出了一种用于建筑物检测的一维检测器，称为“范围检测器”，仅沿范围方向运行。实验表明，这种距离检测器可以有效地检测和提取长方体建筑物的照明墙的足迹，通过将足迹向雷达行进可以捕获建筑物图像的轮廓。该方法适用于日本仙台的机载Pi-SAR图像，可以识别80％以上的建筑物。还可以估算建筑物的高度和长度，并根据光学图像在4–5 m左右发现误差。

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