Image-based BRDF acquisition for 3D objects with specular reflection

An effective image-based measurement for the BRDF of objects was proposed with specular reflection. Unlike traditional methods, using measurements to fit BRDF parameters directly, specular and diffuse parameters were fitted respectively. Firstly, the specular components and diffuse components of reflectance were reliably separated. Then, separated components were used to fit the two kinds of parameters independently. Experiments were conducted using the method as well as the traditional ones, and the results indicate that the method has a better performance for the BRDF acquisition of specular objects.