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zztianzz / PF-Net-Point-Fractal-Network

CVPR2020 PF-Net: Point Fractal Network for 3D Point Cloud Completion
MIT License
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Questions about dense regions in the predictions #39

Open OlivierLessard opened 3 years ago

OlivierLessard commented 3 years ago

Hi, thank you for sharing your work.

I am using the architecture on a different dataset for a research project and I noticed that there is sometimes a dense region in my final predictions after 60 epochs. The points in the dense region are mainly coming from the low level prediction (Y_primary). Q1: Is it an expected behavior that occur when training the model? Q2: Does it disappear with more epochs?

I saw that you change the alpha weights during the training by augmenting them. Q3: Did you try by starting with higher weights and decrease them over time? Q4: Can this last suggestion solve the problem mentioned above?

Example or the problem: image

Thanks in advance.