2DGS on Replica

[wongsinglam]

Hi,

I am trying to do reconstruction in Replica dataset and the result seems not right, the mesh is so sparse.

This is scan1

This is scan2. The settings follow the default without extra setting.

Do you have any suggestion on it. Many thanks!

[wuyingxiong]

Do you slove the problems? I meet the same. THANKS

[thegenerativegeneration]

I have a similar problem with custom data. The Gaussian splat looks okay but the mesh has these odd circular patterns and holes. What could be the source of the issue?

[Zerui-Yu]

2DGS is actually not optimized specifically for indoor scenes, it doesn't perform well in reconstructing weakly textured areas like white walls, ceilings, etc. Try using something like GeoGaussian. GeoGaussian uses slam as Replica for initialization, which is more compatible with Gaussian Splatting than COLMAP's initialization data. Perhaps you can modify the 2DGS dataset code for reading slam's initialization data.

[Howie-Ye]

Use bounded mode for meshing.

[hbb1]

The unbounded mode only works for structured scenes enclosed by cameras (like MipNeRF360 data). For unstructured scenes, I suggest using bounded mode with large depth_trunc.