BlitzGS: City-Scale Gaussian Splatting at Lightning Speed

Researchers introduced BlitzGS, a multi-GPU 3D Gaussian splatting system for city-scale reconstruction.

It cuts the number of active Gaussians with system-, model-, and view-level optimizations, reducing compute and communication costs.

On large benchmarks, BlitzGS delivers about an order-of-magnitude faster training while keeping image quality similar.

The work points to a practical path for faster large-scale scene reconstruction and rendering in real applications.