3DGS rendering shows offset rotation center — camera pose error or coordinate mismatch?

[sIHURs]

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hihi eveyone~

I’m trying to render a MAD-dataset object with 3DGS, my inputs are just the images plus a model-predicted point cloud and camera poses. The camera poses aren’t perfect. In Open3D, when I visualize the points, the cloud seems to rotate nicely around the object center. But in 3DGS, the orbit/rotation center is offset.

Is that happening because the camera poses are inaccurate, or is it more likely a coordinate-system mismatch?

appreciate any insights or experiences—thanks!

Yifan