Bidirectional Reflectance Simulation

—Practical Application of Forest—

Abstract

To improve techniques in remote sensing data analyses, the authors composed a program by introducing the idea of bidirectional reflectance model developed by D.D. Egbert. By applying the program to the forest, the effectiveness of the bidirectional reflectance ratio simulation model was confirmed. The simulation experiment was done step by step: first laboratory experiments, then field experiments and finally experiments using aerophoto data.
As a result, the authors found the forest reflectance characteristic was simulated by the spherical perturbation model. And in the experiment using aerophoto data, the bidirectional reflectance ratio could be estimated by the reformed model plus topographical data and surface structure data of forest.