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首页> 外文会议>Conference on Remote Sensing for Agriculture, Ecosystems, and Hydrology >ROCSAT-2 spectral reflectance experiments using local three end-member spectral mixed model in Taiwan
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ROCSAT-2 spectral reflectance experiments using local three end-member spectral mixed model in Taiwan

机译：Rocsat-2使用台湾局部三个末端成员光谱混合模型的罗克斯-2光谱反射率实验

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摘要

Classification of land cover and land use is one of ROCSAT-2 primary applications. Spectral reflectance experiments were conducted for classification of the main land use and land cover in Taiwan. The four Level I categories of USGS classification system were picked out for classification of the major territory in Taiwan. The fourteen subcategories with fourteen different crops were further classified for the agricultural land use. The barren land is classified into five subcategories. The spectralreflectance of each category or subcategory was recorded with a spectro-radiometer, GER3700, with 702 channels. Since the spectral range of GER3700 covers the four color bands, blue, green, red and infrared of the ROCSAT-2 Remote Sensing Imager, the recorded data were derived into simulated reflectance in the color bands of the ROCSAT-2 Remote Sensing Imager. To use a multiple end-member spectral mixed model, the correlation among the category and/or subcategory was calculated. Yam, dry sand and waterwere selected as the local three end-members for their low correlation of spectral reflectance. The spectral reflectance of other categories is coded as the components of the local end-members.
机译：土地覆盖和土地使用的分类是Rocsat-2主要应用之一。对台湾主要土地利用和陆地覆盖的分类进行了光谱反射率实验。为台湾主要领土的分类挑选了四级USG分类系统。十四个不同作物的十四个子类别进一步分类为农业用地。贫瘠的土地分为五个子类别。每个类别或子类别的Spectralrefleflectance用带有702个通道的光谱辐射计GER3700记录。由于GER3700的频谱范围覆盖了Rocsat-2遥感成像器的四个色带，蓝色，绿色，红色和红外线，因此记录的数据始于Rocsat-2遥感成像器的色带中的模拟反射率。为了使用多个端成员光谱混合模型，计算类别和/或子类别之间的相关性。山药，干砂和水擦拭，作为本地三个端构件的光谱反射率低的低相关性。其他类别的光谱反射率被编码为本地端部件的组件。

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