Open Hongbin98 opened 6 months ago
Hi @Hongbin98, thanks for your question!
We observed similar patterns with some models in our benchmark (see our supplementary file). We conjecture that this is because the wet_ground
(mainly causes missing points on the ground) is not a very sensitive type of corruption to existing 3D perception models.
Indeed, the LiDAR scenes are imbalanced towards certain majority classes, including the ground. A certain loss of LiDAR points for these classes will not likely be an issue since there are a sufficient number of points remaining during the training.
Thanks for your work.
When I tried to explore the KITTI-C dataset, I found that the model performance of the 'wet_ground' corruption is same at all three levels. So I wonder if there are some problems in the point cloud data under this condition?
Note: I download the KITTI-C dataset from https://opendatalab.com/OpenDataLab/KITTI-C/tree/main/raw