Fig. 9From: Method for accurate multi-growth-stage estimation of fractional vegetation cover using unmanned aerial vehicle remote sensingFVC measured and estimated by using different SIs and methods (UAV-based dataset). Note: FVCref is the reference FVC from UAV-image classification; FVCNDVI, FVCNDVI2, FVCRDVI2, and FVCSAVI are the FVC estimates based on a NDVI, NDVI2, RDVI, SAVI, and b LAN, PDM, and FSMBack to article page