苹果叶片氮含量高光谱反演方法对比
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杨福芹,冯海宽,李振海,潘洁晨,谢瑞
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Comparison of Hyperspectral Remote Sensing Inversion Methods for Apple Leaf Nitrogen Content
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Fuqin Yang,Haikuan Feng,Zhenhai Li,Jiechen Pan,Rui Xie
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表9 光谱指数与叶片氮含量袋外数据重要性顺序
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Table 9 Sequence of correlation between spectral index and LNC with OOB
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| 光谱指数 | 袋外数据 | 排序 | 光谱指数 | 袋外数据 | 排序 |
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| Db | 10.204 | 1 | SDr/SDb | 1.495 | 14 | | D527 | 8.696 | 2 | Rg/Ro | 1.154 | 15 | | R553 | 4.682 | 3 | Dr | 1.000 | 16 | | D559 | 4.677 | 4 | SDy | 0.982 | 17 | | RSI(554,615) | 4.158 | 5 | (SDr-SDb)/ (SDr+SDb) | 0.947 | 18 | | Rg | 3.327 | 6 | (Rg-Ro)/ (Rg+Ro) | 0.946 | 19 | | D708 | 3.298 | 7 | SDr | 0.640 | 20 | | Dy | 3.068 | 8 | Ro | 0.471 | 21 | | SDr/SDy | 3.033 | 9 | λr | 0.453 | 22 | (SDr-SDy)/ (SDr+SDy) | 2.971 | 10 | λb | 0.306 | 23 | | NDSI(567,615) | 2.823 | 11 | λg | 0.100 | 24 | | SDb | 2.435 | 12 | λy | 0.0132 | 25 | | R724 | 2.022 | 13 | | | |
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