Spherical Gaussian Color Representation for 3D Gaussian Splatting
3D Gaussian Splatting stores each Gaussian's view-dependent color with third-degree spherical harmonics, which dominate model size and rendering time. This concept covers representing that view-dependent color instead with spherical Gaussians (compact directional lobes of orthogonal orientation), optionally mixed with a few low-degree spherical-harmonic terms, to cut the color parameter count and speed up rendering while preserving visual quality.
2501.00342
3D Gaussian Splatting renders novel views of a scene from a set of Gaussian primitives, and encodes each Gaussian's view-dependent color with third-degree spherical harmonics, which account for most …