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Automatic asset detection for disaster relief using satellite imagery

机译:利用卫星图像自动检测资产以进行救灾

摘要

Systems and methods for automatic detection of disaster relief assets from a satellite image can include a satellite and a processor, which can contain non-transitory written directions that perform a method, which includes the step of defining spectra of interest (SOI). A reference spectral profile that is based on the SOI is built. The reference spectral profile can extend into the near infrared range to eliminate false positive indications. A satellite image of the spatial region of interest (ROI) is taken. For each pixel in the ROI, test spectra of the spatial region can be extracted and compared to the reference spectral profile using a spectral angle mapper (SAM) tool. When the comparison meets predetermined parameters, that pixel of the ROI can be deemed to be indicative of a disaster relief asset, and the geo-reference data for that pixel can be transmitted to a remote user.
机译:用于从卫星图像自动检测救灾资产的系统和方法可以包括卫星和处理器,其可以包含执行方法的非临时性书面指示,该指示包括定义关注光谱(SOI)的步骤。建立基于SOI的参考光谱图。参考光谱图可以扩展到近红外范围,以消除误报。拍摄感兴趣的空间区域(ROI)的卫星图像。对于ROI中的每个像素,可以使用光谱角度映射器(SAM)工具提取空间区域的测试光谱并将其与参考光谱轮廓进行比较。当比较满足预定参数时,ROI的那个像素可以被视为指示救灾资产,并且该像素的地理参考数据可以传输到远程用户。

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