NeISF++: Neural Incident Stokes Field for Polarized Inverse Rendering of Conductors and Dielectrics

Roughness Normal Ours Polarization camera Scene with conductors and dielectrics ior (real) ior (imag.) Normal Roughness Diffuse albedo Diffuse albedo Relit image Relit image Figure 1. Comparison of the polarized inverse rendering methods. Since NeISF [33] does not model conductors correctly, its geometry and material reconstruction is poor. Our method estimates the complex refractive index of conductors and re-renders the image via a physicallybased pBRDF. Therefore, the reconstructed material and geometry are accurate, and the relighting result is glossy. We normalize the real and imaginary parts of the complex refractive index ior, and visualize them separately.