The performance of semantic segmentation on S3DIS dataset about pointnet2 HOT 3 OPEN

Hello,

After getting PointNet++ to work with S3DIS, I experienced the same thing. However, as Charles pointed out, PointNet uses XYZ RGB X'Y'Z' for segmentation, while, as of right now, PointNet++ semantic segmentation model (pointnet2_sem_seg.py) only uses XYZ. The fact that PointNet++ performs in the same ballpark as PointNet using so much less information is quite impressive in my opinion.

Having read the paper carefully, I do not see a fundamental difficulty in using other features in this model. It would be quite a bit of work to implement however.

from pointnet2.

Hi @shuluoshu
Have you tried to use XYZ information only?
the RGB and X'Y'Z' features can be quite dominant in S3DIS dataset

from pointnet2.

Hi, @charlesq34 , do you mean that by comparing the results of PointNet (XYZ instead of original XYZRGB) and PointNet++ only using the XYZ information? Does the PointNet++ model not support RGB information?

from pointnet2.