Compress on multiple 3dgs models

[BruceLz]

Great job!
I was wondering if it would be possible to input multiple 3dgs models together for compression.
If so:
How is calc importance calculated?
And vq compression?
And finetune?
Could you please give me some advice. Thx!

[KeKsBoTer]

For multiple scenes, one could share the codebooks.
My guess is that you probably need larger codebooks but if you have multiple scenes with similar features (e.g. multiple office rooms) it should work.

• The importance/sensitivity can be calculated per scene.
• VQ needs to be calculated for all scenes together
• Fintetuning also has to be performed simultaneously for all scenes. (This is probably the hardest / computationally expensive part)

Once could try to fix the codebooks after the VQ for all scenes and only optimize the other free parameters in the scene. This can then be done per scene. I don't know how well that will work.