Axis alignment during Freeview rendering

[Dipankar1997161]

Hello @wyysf-98, Thank you for the work.

I was wondering why the Freeview rendering of people snapshot is slightly inclined. Is it really the issue with the monocular axis?

when I tried multi-view datasets, it works fine. but for monocular, it goes slightly inclined.
Would be great if you can mention anything about it?

[wyysf-98]

Hi, I think the main reason is the z-axis ambiguity of the monocular pose estimation. The optimization process will further enlarge this error (Some other works may also meet the same issue, like https://huangyangyi.github.io/TeCH/,

). Moreover, the results of multi-view datasets evidence this hypothesis.

To solve this, I think a possible way you can try is to adjust the camera poses for training.