Improving QGA-ELM Inversion Model of Rice Leaf Area Index Based on UAV Remote Sensing Image

Table 5

LAI inversion models and their spectral index evaluation indicators.

Vegetation index	Model	^2	RMSE
RVI		0.5002	0.6248
NDVI		0.5485	0.7399
GNDVI		0.3530	1.2720
NPCI		0.3036	0.9798
NRI		0.4298	0.8867
s-REP		0.4191	0.8949