Preprocessing for the scannet data about pointnet2

[charlesq34]

Hi @shuluoshu

You can find how to extract ScanNet data at here:

https://github.com/charlesq34/pointnet2/tree/master/scannet/preprocessing

[ganlumomo]

Hi @shuluoshu, @charlesq34
I used the code in preprocessing, however, I can only get numpy data .npy from the code. Could you point me how to process the .npy data to 'pickle' format? Thank you!

[oafolabi]

Hi,
I'm not sure how to handle .npy files, but here's how you can load and save pickle files
https://wiki.python.org/moin/UsingPickle

If you have a numpy array or anything else, just replace favorite_color in the example with that.

Also, note that you can save multiple things to one pickle file, as the author does in lines 14-16, starting at this line:

pointnet2/scannet/scannet_dataset.py

Line 14 in 7961e26

with open(self.data_filename,'rb') as fp:

Hope that helps.