Learning a 3D Morphable Face Reflectance Model from Low-Cost Data

Morphable Face Reflectance Model Diffuse Albedo Linear Combination Weights for Different Specular Exponents Figure 1. We propose the first 3D morphable face reflectance model with spatially varying BRDF and a technique to train the model with low-cost publicly-available data. We represent face reflectance as a Lambertian BRDF combined with the linear combination of Blinn-Phong BRDFs with different predefined specular exponents. The reflectance parameters for each face vertex are the diffuse albedo and a set of weights. We show the first 3 principal components of diffuse albedo and spatially varying weights here in nonlinear sRGB space.