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基于线性光谱混合模型的棉花遥感识别混合像元分解 被引量:4

Mixed Pixel Decomposition of Cotton Identification with Remote Sensing Data Based on Linear Spectral Mixture Model(LSMM)
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摘要 遥感图像中普通存在着混合像元,对这部分像元进行分类(即混合像元分解)是遥感图像处理中的难点。以新疆玛纳斯县为研究区,运用线性光谱混合模型,估算端元丰度值,进行空间建模,将棉花、玉米、番茄和土壤4类典型的端元组分光谱值代入线性模型,在非约束条件下用最小二乘法估计混合系数,得到每种地物类型的丰度及均方根误差图,以实地测量的棉花种植面积对模型分解效果进行评估,结果表明:线性光谱混合模型构模简单、计算量小,棉花线性光谱混合像元分解精度达到90%以上,可用于新疆棉花的遥感识别。
出处 《中国棉花》 北大核心 2011年第10期32-36,共5页 China Cotton
基金 国家自然基金(4070112840661011)
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参考文献11

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