This repository is the official PyTorch implementation of our paper, Laplacian2Mesh: Laplacian-Based Mesh Understanding.

• 🔥 This paper was accepted by IEEE TVCG
• ⭐ Gave a talk at CVM2023 on Laplacian2Mesh.

• python 3.7
• CUDA 11.3
• Pytorch 1.10.0

To install other python requirements:

pip install -r requirements.txt

clone this repo:

git clone https://github.com/QiujieDong/Laplacian2Mesh.git
cd Laplacian2Mesh

This repo provides training scripts for classification and segmentation on the following datasets:

• SHREC-11
• manifold40
• humanbody
• coseg_aliens
• coseg_chairs
• coseg_vases

To download the preprocessed data, run

sh ./scripts/<DATASET_NAME>/get_data.sh

The coseg_aliens, coseg_chairs, and coseg_vases are downloaded via the script of coseg_aliens. This repo uses the original Manifold40 dataset without re-meshing via the Loop Subdivision.

To get the input features by preprocessing:

sh ./scripts/<DATASET_NAME>/prepaer_data.sh

The operation of preprocessing is one-time.

To train the model on the provided dataset(s) in this paper, run this command:

sh ./scripts/<DATASET_NAME>/train.sh

The training process is time-consuming, you can refer to DiffusionNet to optimize the code to speed up the training.

To evaluate the model on a dataset, run:

sh ./scripts/<DATASET_NAME>/test.sh

After testing the segmentation network, there will be colored shapes in the visualization_result directory.

If you find our work useful for your research, please consider citing the following papers :)

@article{dong2023laplacian2mesh,
  title={Laplacian2mesh: Laplacian-based mesh understanding},
  author={Dong, Qiujie and Wang, Zixiong and Li, Manyi and Gao, Junjie and Chen, Shuangmin and Shu, Zhenyu and Xin, Shiqing and Tu, Changhe and Wang, Wenping},
  journal={IEEE Transactions on Visualization and Computer Graphics},
  year={2023},
  publisher={IEEE}
}

Our code is inspired by MeshCNN and SubdivNet.