Please excuse my naive question - isn't Gaussian Splatting usually used to create 3D imagery from 2D? How does providing 3D input data make sense in this context?
Yes, the normal case uses 2D input, but it can take hours to create the scene. Using the depth channel allows me to create the scene in 33 milliseconds, from scratch, every frame. You could conceptualize this as a compromise between raw pointcloud rendering and fully precomputed Gaussian splat rendering. With pointclouds, you have a lot visual artifacts due to sparsity (low texture information, seeing "through" objec…
That makes things clearer, thanks!