NRF-GS: Neural Residual Fields for Expressive and Compact Gaussian Splatting
We revisit the role of appearance modeling in 3D Gaussian Splatting (3DGS) and show that limited expressiveness in view-dependent reflectance is a key driver of representation redundancy. In standard 3DGS, low-order spherical harmonics (SH) are used, restricting the splats'ability to model high-frequency directional ef...