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yanchi-3dv / diff-gaussian-rasterization-for-gsslam

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About the bundle adjustment #2

Open ljjTYJR opened 6 months ago

ljjTYJR commented 6 months ago

Hi authors,

I have a minor question on the "Bundle Adjustment" in the paper. Did you conduct the ablation study on bundle adjustment? I ever tried some simple experiments, which show the bundle adjustment makes the result worse.

I wonder did you do experiments on it? Do you have some observations during the process?

Best, Shuo.

yanchi-3dv commented 5 months ago

We have not done an ablation study on bundle adjustment yet. In our experiment, if the 3DGS is incorrect, the pose estimation will be wrong, so we only optimize it after 1/2 iters. Even if we only optimize it after 1/2 iters, sometimes it still makes a worse result. The motivation why for BA is to make sure the 3DGS perspective is consistent.