基于红边优化植被指数的寒地水稻叶片叶绿素含量遥感反演研究
于丰华, 许童羽, 郭忠辉, 杜文, 王定康, 曹英丽

Remote sensing inversion of chlorophyll content in rice leaves in cold region based on Optimizing Red-edge Vegetation Index (ORVI)
Fenghua Yu, Tongyu Xu, Zhonghui Guo, Wen Du, Dingkang Wang, Yingli Cao
表1 高光谱植被指数
Table 1 Hyperspectral vegetation index
植被指数指数公式
Normalized Difference 528/587[28]???????ρ528-ρ567ρ528+ρ567 (5)
Simple Ratio 440/690[29]ρ440ρ690 (6)
Chlorophyll Absorption Ratio Index[30]ρ700ρ670(a*ρ670+ρ670+b)2(a2+1)0.5 (7)
Modified Chlorophyll Absorption in Reflectance Index[31]

ρ700-ρ670-0.2×ρ700-ρ550 (8)

??ρ700ρ670 (9)