WorldView-3是目前空间分辨率最高的商业卫星数据,具有立体采集、1∶5000测图能力,同时又具有更多的光谱波段,有利于地物识别。本文尝试基于深度学习分类工艺和方法,探讨利用0.31 m WorldView-3多光谱、高分辨率遥感影像的地物识别能力...WorldView-3是目前空间分辨率最高的商业卫星数据,具有立体采集、1∶5000测图能力,同时又具有更多的光谱波段,有利于地物识别。本文尝试基于深度学习分类工艺和方法,探讨利用0.31 m WorldView-3多光谱、高分辨率遥感影像的地物识别能力,通过选取试验区对房屋建筑区、植被、阴影、水体、棚房等城市目标进行分类试验,分析针对分米级高分辨率遥感影像城市目标分类试验工艺和关键参数设置、样本特征选取。试验结果表明模型具有一定样本容错能力,并在一定程度上可以有效挖掘WorldView-3的不同材质地物识别能力。展开更多
The multispectral commercial satellite-WorldView-3(WV-3) has the highest spatial, spectral and radiation resolutions among the satellites currently and can generate good data in the shortwave infrared(SWIR). The study...The multispectral commercial satellite-WorldView-3(WV-3) has the highest spatial, spectral and radiation resolutions among the satellites currently and can generate good data in the shortwave infrared(SWIR). The study area is located in the Pobei area of Xinjiang Uygur Autonomous Region, which is rich in mineral resources. The spectral analyses of some typical altered hydroxy-bearing, iron-bearing, and carbonate-bearing minerals could establish several Principal Component Analysis(PCA) models and mineral indices, using the visible and near infrared(VNIR) and the shortwave infrared(SWIR) subsystems of WV-3 data. In addition, the Spectral Angle Method and the spectrum index tool of ENVI software were used to extract the relevant alteration information. The WV-3 data is well suited for identifying hydroxy-bearing alteration with rich SWIR bands which distinguish Al-OH-bearing from MgOH-bearing alteration. Hence, this study provides a basis for the prediction of mineral resources in the Pobei area and sets the foundation for WV-3 data to be used as an important tool in extracting alteration information and prospecting practices.展开更多
文摘WorldView-3是目前空间分辨率最高的商业卫星数据,具有立体采集、1∶5000测图能力,同时又具有更多的光谱波段,有利于地物识别。本文尝试基于深度学习分类工艺和方法,探讨利用0.31 m WorldView-3多光谱、高分辨率遥感影像的地物识别能力,通过选取试验区对房屋建筑区、植被、阴影、水体、棚房等城市目标进行分类试验,分析针对分米级高分辨率遥感影像城市目标分类试验工艺和关键参数设置、样本特征选取。试验结果表明模型具有一定样本容错能力,并在一定程度上可以有效挖掘WorldView-3的不同材质地物识别能力。
基金supported by the “Iron and manganese resources investigation projection” from the Chinese Academy of Geological Sciences(Grant No.12120115037901)
文摘The multispectral commercial satellite-WorldView-3(WV-3) has the highest spatial, spectral and radiation resolutions among the satellites currently and can generate good data in the shortwave infrared(SWIR). The study area is located in the Pobei area of Xinjiang Uygur Autonomous Region, which is rich in mineral resources. The spectral analyses of some typical altered hydroxy-bearing, iron-bearing, and carbonate-bearing minerals could establish several Principal Component Analysis(PCA) models and mineral indices, using the visible and near infrared(VNIR) and the shortwave infrared(SWIR) subsystems of WV-3 data. In addition, the Spectral Angle Method and the spectrum index tool of ENVI software were used to extract the relevant alteration information. The WV-3 data is well suited for identifying hydroxy-bearing alteration with rich SWIR bands which distinguish Al-OH-bearing from MgOH-bearing alteration. Hence, this study provides a basis for the prediction of mineral resources in the Pobei area and sets the foundation for WV-3 data to be used as an important tool in extracting alteration information and prospecting practices.
