Where can I find T-net module about pointnet2 HOT 5 OPEN

t-net and max pooling is the key of pointnet, if pointnet++ did not use above ,why papers did not mark

from pointnet2.

For anyone still wondering about this, see this line from the paper:
"Note that PoinetNet (vanilla)... is the version... that does not use transformation networks, which is equivalent to our hierarchical net with only one level"
Notice the wording in PointNet++: the "PointNet layer uses a mini-PointNet" i.e. not a normal PointNet. As a matter of fact, in the original PointNet paper T-Nets are referred to as mini-PointNets (they're not exactly the same, but similar).

As for why they decide use a vanilla PointNet instead of a normal one, maybe it was for efficiency reasons as they mention it is less than half the FLOPS/sample as the normal PointNet.

from pointnet2.

@itswyri I think the author didn't use the T-net in the pointnet_sa_module.

from pointnet2.

@charlesq34 could you give me the commet regarding the @itswyri 's question? I also wondering the T-Net usage in PointNet++.

from pointnet2.

from pointnet2.