A two-layer canopy reflectance model for the anisotropic scattering of the vegetation canopy and background

A two-layer canopy reflectance model proposed by the authors is adopted to apply to a forest canopy in this study. The anisotropic scattering from the shrub substrate of the forest canopy is taken into consideration. The experiment demonstrates the estimation of the canopy properties of both the overstory and understory. Although the results show the insufficiency of the homogeneous model because of the discontinuity of the forest canopy, this will serve as a preliminary study for the hybrid model in future work.