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facebookresearch / ContrastiveSceneContexts

Code for CVPR 2021 oral paper "Exploring Data-Efficient 3D Scene Understanding with Contrastive Scene Contexts"
MIT License
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About instance loss for PointGroup #42

Closed Gofinge closed 1 year ago

Gofinge commented 1 year ago

Hi, thanks for your research; it's really inspired me a lot. I have a question about your reproduced version of PointGroup, since I am trying to add instance segmentation support to my codebase.

The original PointGroup adds an instance loss after a preparing epoch, but the reproduced version of CSC only contains a seg loss and two offset loss, and I am curious about the reason. Does it because the instance loss can not promote the performance?

Sekunde commented 1 year ago

Hi there, the initial purpose is just to have a clean and simple instance segmentation method we can work with, we didn't intend to exactly reproduce the PointGroup. For instance loss, I am not sure whether it helps, I assume it would further improve the performance as you add it.

Gofinge commented 1 year ago

I see. Thanks for your quick response!