VGGT2Gsplat, but low PSNR and SSIM

[LeiF-u]

I used VGGT to generate point clouds and then used GSplat to reconstruct them. However, my GSplat reconstruction evaluation metrics (PSNR, SSIM, etc.) were not very good. Furthermore, the MP4 files generated by gsplat's simple_trainer have poor visual quality. The images I used were the "kitchen" images from the "examples" provided by VGGT, about 25 in total, and the scene was not very continuous, and I did not use BA. I want to know why the results aren't very good. Thank you！

[Eecornwell]

I found that with SLAM or VGGT/map_anything, you will need to run bundle adjustment on the poses because they will be slightly off. This will cause the reconstruction to do poor if the poses are not exactly aligned to ground-truth.

[LeiF-u]

I found that with SLAM or VGGT/map_anything, you will need to run bundle adjustment on the poses because they will be slightly off. This will cause the reconstruction to do poor if the poses are not exactly aligned to ground-truth.

Thanks a lot. 👍