About preprocessing the 3DMatch dataset.

[xl-huo]

First, thank you for this solid work!

As we want to further explore this work, I wonder if you would like to share the preprocess script on 3DMatch dataset for transforming the raw 3DMatch dataset to the training data?

Also, I notice that the raw 3DMatch dataset you provide is different from the official 3DMatch dataset, can you please illustrate the difference between these two?

Thank you and look forward to your reply!