. Author manuscript; available in PMC: 2022 Sep 7.

Published in final edited form as: Agronomy (Basel). 2020 Apr 27;10(5):618. doi: 10.3390/agronomy10050618

Table 6.

Processing time (minutes) using the standard per-pixel hyperparameters optimization vs. the proposed methodology (i.e., precalculated per crop-type/global hyperparameters). Computer specifications: CPU i7-8700k @ 3.7 Ghz with 32 gb of RAM, running under windows 10—Matlab 2018b.

Crop Type	No. of Pixels	Time (m)
Crop Type	No. of Pixels	θ_pp	[θ_pc,θ_gl]	Ratio
Wheat	62,482	104.136	1.145	90.95
Corn	36,065	60.108	0.661	90.93
Barley	44,154	73.590	0.809	9.,96
Sunflower	29,463	49.105	0.540	90.94
Rape	23,467	39.111	0.430	90.96
Pea	14,726	24.543	0.269	91.24
Alfalfa	21,683	36.138	0.397	91.03
Beet	16,466	27.443	0.301	91.17
Potato	14,337	23.895	0.262	91.20
Total	262,843	438.069	4.814	-