ply files don't perform well

[shaopeng666]

Hi, this is great work. The rendered images look good, but the final Ply file, after being visualized by Supersplat, appears somewhat blurry, quite different from the GIF. The dataset I used is the degenerate_seq_00.bag file from the R3LIVE Dataset and the R3LIVE Dataset parameter file.

[Jerry-locker]

Thanks for your interest in our work!😀 The less satisfactory visualization of the Gaussian point cloud can typically be attributed to two reasons:

1. The exported PLY file does not include sky Gaussians. This can noticeably affect the visual quality when viewed in Supersplat, especially for large outdoor scenes.
2. When using Supersplat, if the viewing angle deviates significantly from the training trajectory, artifacts or blurriness may appear. This is a common limitation of standard 3DGS, which tends to overfit to the training viewpoints. If you would like to improve the visual quality when rendering from novel or distant viewpoints, you may consider incorporating: 1）Geometric constraints, such as those used in PGSR or Gaussian-LIC2, which help preserve structure beyond the observed views. 2）Generative priors (e.g., ReconDreamer) to enhance out-of-sequence novel view synthesis. These approaches can significantly improve robustness and fidelity away from the training viewpoints.