Material Recovery Algorithm of Translucent Object under Complex Environment Illumination

Based on the reflective and refractive phenomena of translucent objects,this paper proposes an algorithm to recover the material properties of the objects under complex environment illumination,where refractive index and the BRTDF model both are considered in the rendering process.This algorithm first estimates all the material parameters in the sequence of object color,refractive index,transmission coefficient, diffuse reflection coefficient,mirror reflection coefficient,surface roughness coefficient,then the processing procedure repeats by using these parameter values as initial ones,and finally all the parameters are obtained in the solution through this recursive method.Experiments show that the algorithm is able to recover the material parameters of translucent objects with high accuracy by a few recursive steps,and the recovered parameters can be used to render the translucent objects in a new scene effectively.