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

Table 4

LAI inversion models and their spectral index evaluation indicators.

Vegetation index	Model	^2	RMSE
RVI		0.6373	0.7759
NDVI		0.6912	0.6405
GNDVI		0.4539	0.9521
NPCI		0.4978	0.9131
NRI		0.5616	0.8531
s-REP		0.5282	0.885