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Relative value of radar and optical data for land cover/use mapping: Peru example

机译:雷达和光学数据在土地覆被/使用图上的相对价值:秘鲁的例子

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This study determined using divergence measures the best individual and combinations of various numbers of bands for six land cover/use classes around the city of Arequipa, Peru. A 15 band data stack consisting of PALSAR L-band dual-polarised radar, Landsat optical data, as well as six variance texture measures extracted from the PALSAR images, was used in this study. Spectral signatures were obtained for each class for the divergence examination. The band having the highest separability was the Landsat visible red band followed by the two largest window PALSAR texture measures. The best three band combination included three very different data types, Landsat visible red, near infrared and the PALSAR HH variance texture from a 17×17 pixel window. There was no need based upon the divergence values to use more than five bands for classification.
机译:这项研究使用差异量度确定了秘鲁阿雷基帕市周围六个土地覆盖/使用类别的最佳个体以及不同数量频段的组合。在这项研究中,使用了一个由PALSAR L波段双极化雷达,Landsat光学数据以及从PALSAR图像中提取的六个方差纹理量度组成的15波段数据堆栈。获得每个类别的光谱签名以用于发散检验。具有最高可分离性的波段是Landsat可见红色波段,其次是两个最大的窗口PALSAR纹理度量。最佳的三波段组合包括三种非常不同的数据类型:Landsat可见红光,近红外光和来自17×17像素窗口的PALSAR HH方差纹理。无需根据散度值使用五个以上的波段进行分类。

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