Table 3.
Hyperspectral characteristic parameters and their descriptions.
| Characteristic Parameter | Definition |
|---|---|
| SDb | Sum of the first-order derivative values within the blue edge wavelength range (492~530 nm) |
| SDg | Sum of the first-order derivative values within the green edge wavelength range (505~553 nm) |
| SDy | Sum of the first-order derivative values within the yellow edge wavelength range (555~571 nm) |
| SDr | Sum of the first-order derivative values within the red edge wavelength range (680~760 nm) |
| SDr/SDb | Ratio of the total sum of first-order derivatives within the red edge to that within the blue edge |
| SDr/SDg | Ratio of the total sum of first-order derivatives within the red edge to that within the green edge |
| (SDr − SDb)/(SDr + SDb) | The normalized sum of first-order derivatives within the red edge compared to that within the blue edge. |
| (SDr − SDg)/(SDr + SDg) | The normalized sum of first-order derivatives within the red edge compared to that within the green edge. |
| PSSRa | R800/R680 |
| PSSRb | R800/R635 |
| PSSRc | R800/R470 |