camera space motion is different form world space motion

Thank you for your work. I recently used your code to run reconstruction on Ego4D and noticed a discrepancy between the meshes in the camera coordinate system and the world coordinate system. What causes this?

https://github.com/user-attachments/assets/0a13b0e8-3ceb-487a-80db-110ab214b1d7

https://github.com/user-attachments/assets/5b7db7f8-e31f-4cbd-a8ad-95365b1f50d0

No source file, test, or entry point is named. Start by reproducing the reconstruction on Ego4D and comparing meshes in camera and world coordinate systems, then trace the coordinate transformation involved. Done means identifying the cause of the discrepancy and documenting a reproducible fix or clear explanation.

Written by the indexing model from the issue text.