Pytorch3d: Octree Data Structure Support

Created on 8 Oct 2020  路  4Comments  路  Source: facebookresearch/pytorch3d

馃殌 Feature

Support for Octrees based neural networks

Motivation

Recently several research works by Wang et al. have proposed Octree-Based CNNs for various shape analysis tasks. A similar feature implementation that allows the operations over octrees could be of great benefit especially due to the reduced memory footprint that octrees allow for 3D data.

Pitch

The current implementation exists in tensorflow only given here. It would great if pytorch3d too has similar features to allow the creation of octree based neural networks. Would be glad to contribute.

enhancement
Source
picture aradhyamathur
👍4

All 4 comments

This sounds like a great suggestion! We will discuss this with our team and will comment here for a timeline.

gkioxari picture gkioxari on 9 Oct 2020
👍1

It seems that two days after this conversation they added support for pytorch https://github.com/microsoft/O-CNN/tree/master/pytorch pretty efficient

albertotono picture albertotono on 2 Nov 2020
👍1

Yeah but I guess it will be better to have this data structure in pytorch3D as well, to allow some more flexibility to users to use octrees.

aradhyamathur picture aradhyamathur on 3 Nov 2020
👍1

They also confirmed that it is still under development.

albertotono picture albertotono on 3 Nov 2020
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