基于无人机影像阴影去除的苹果树冠层氮素含量遥感反演
|
|
李美炫,朱西存,白雪源,彭玉凤,田中宇,姜远茂
|
Remote Sensing Inversion of Nitrogen Content in Apple Canopy Based on Shadow Removal in UAV Multi-Spectral Remote Sensing Images
|
|
LI MeiXuan,ZHU XiCun,BAI XueYuan,PENG YuFeng,TIAN ZhongYu,JIANG YuanMao
|
|
表3 光谱参量及其与氮素含量的相关性分析
|
Table 3 Correlation analysis between spectral parameters and nitrogen content
|
|
序号
Number | 光谱指数
Spcetral index | 相关系数R | 原始光谱信息
Original reflectivity | 基于NSVI提取光谱信息
NSVI reflectivity | 基于NDCSI提取光谱信息
NDCSI reflectivity | | 1 | Bg+Br | -0.692 | -0.756 | -0.790 | | 2 | Bg-Br | -0.527 | -0.587 | -0.627 | | 3 | Bg×Br | -0.700 | -0.738 | -0.763 | | 4 | Br/(Bg+Br) | -0.290 | -0.264 | -0.246 | | 5 | $\sqrt{B\text{g}\times Br}$ | -0.699 | -0.740 | -0.766 | | 6 | $\sqrt{B{{g}^{2}}+B{{r}^{2}}}$ | -0.679 | -0.754 | -0.793 | | 7 | 1/(Bg+Br) | 0.687 | 0.754 | 0.792 | | 8 | 1/(Bg-Br) | 0.512 | 0.584 | 0.627 | | 9 | $\sqrt{B\text{g}+B\text{r}}$ | -0.691 | -0.756 | -0.791 | | 10 | $\sqrt{B\text{g}-Br}$ | -0.523 | -0.587 | -0.628 |
|
|
|