use extract_mesh.py to extract mesh from model trained on scannet

[XuqianRen]

Hi, thank you for your project. I have one question. When I try to use the extract_mesh.py script in your project to extract mesh for scannet scenes, the mesh results are all in a mess as followings, some objects have been reconstructed, some are not, and they are all very noisy.
Like for scene0005:

scene0050:

But I have got the right nerf result for scannet scenes: (like for scene0050)

Also, when running this script with the synthesis dataset, the results are clear.

I want to know is there any change I need to add to adapt this script to fit the scannet dataset? Or is there any problem in my way to training with scannet dataset?

[Dejan]

Hi Xuqian,

It looks like the region from which you are trying to extract the mesh is incorrect. The scene is repeating because of the periodic positional encoding. However, only the region that was optimized will look good. The quality of the repetitions is always degraded.

[XuqianRen]

Thank you