Request for COLMAP data process scripts

[HyoKong]

Thank you for the amazing work on this project! I’ve been training the vanilla GS model using the COLMAP dataset you provided, and I’m seeing a significant performance boost (+2 PSNR) compared to training on my own dataset.

I suspect the difference in performance might be due to variations in the pre-processing steps. Would it be possible for you to share the COLMAP pre-processing script you used for preparing the data?

Thanks again for your help!

[papercv7]

Hello,
We didn't do any additional preprocessing on the images besides the multi-nerf's COLMAP script.
Are you using undistortion in COLMAP? vanilla 3DGS cannot handle distortions in the images.
We have provided our COLMAP setting in this issue #11 .

[HyoKong]

Thank you so much for the reply.

I notice that multi-nerf's colmap script did not undistort images.

https://github.com/google-research/multinerf/blob/5b4d4f64608ec8077222c52fdf814d40acc10bc1/scripts/local_colmap_and_resize.sh#L69

Do I need to uncomment the undistortion lines?

Thank you!

[lilygoli]

yes! please uncomment the undistortion.