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Table 4 The algorithms for estimating rapeseed yield using the product of vegetation index and short-stalk-leaf abundance

From: Remote estimation of rapeseed yield with unmanned aerial vehicle (UAV) imaging and spectral mixture analysis

VI × AbdSS_LF Best fit function R2 RMSE (kg/ha)
SAVI × AbdSS_LF Yield = 9252.9 × SAVI × AbdSS_LF +519.28 0.84 299.91
NDVI × AbdSS_LF Yield = 8059.7 × NDVI × AbdSS_LF +204.22 0.83 294.11
CIrededge × AbdSS_LF Yield = 7011.2 × CIrededge × AbdSS_LF +735.09 0.82 302.27
TVI × AbdSS_LF Yield = 181.15 × TVI × AbdSS_LF +755.43 0.82 299.88
  1. The best fit functions, determination coefficients (R2) and root mean square errors (RMSE) are given for four indices