rRMSE for 10 parameters of ADEL-Wheat, GAI, and the number of tillers with d3l estimated with the D3P using the GF observations under five view directions for 10 dates between crop emergence and the beginning of stem elongation. Three levels of noise were considered (0%, 5%, and 10%) for the evaluation dataset. The 10 parameters include: ψ; L, rank from the bottom; αleaf; Δφ; Δθ, shift of leaf basal inclination Nsen; Nmin; Ntil; θtil; αtil.