An In-Depth Guide to 3D Gaussian Splatting for Real-Time 3D Reconstruction
I highly recommend reading the two papers: [5] and [3]. [5] provides a comprehensive description of the splatting process. [3] provides an efficient implementation of the splatting process. Problem Formulation Volume Rendering with Radiance Fields [1, 2] figure from https://www.cs.cornell.edu/courses/cs5670/2022sp/lectures/lec22_nerf_for_web.pdf. The volume density $\sigma(\mathbf{x})$ can be interpreted as the differential probability of a ray terminating (being absorbed or scattered) at an infinitesimal particle at location $\mathbf{x}$. ...