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基于无人机多光谱影像与LASSO回归的棉花叶片SPAD和LAI值优化估测研究 ...
本研究针对新疆棉花黄萎病监测需求,创新性地结合无人机多光谱遥感与机器学习算法,通过lasso回归筛选植被指数(vi)和纹理特征,构建aco-rf优化模型实现棉花叶绿素含量(spad)和叶面积指数(lai)的高精度反演。研究发现红边(reg)和近红外(nir)波段对病害响应敏感,最优模型在铃期达到r2 0.898(rmse=1.523)和0 ...
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