README.md

---
configs:
  - config_name: default
    data_files:
      - split: train
        path: "dataset-*.tar"
      - split: test
        path: "dataset-*.tar"
    subset: true
    subset_field: txt
    subset_mapping:
      - key: diffuse_train
        split:
          - train
      - key: diffuse_test
        split:
          - test
license: cc-by-nc-4.0
tags:
  - croissant
  - webdataset
size_categories:
  - 1K<n<10K
task_categories:
  - image-to-3d
---


# OpenMaterial: A Comprehensive Dataset of Complex Materials for 3D Reconstruction
 
 Zheng Dang<sup>1</sup>  ·  Jialu Huang<sup>2</sup>  ·  Fei Wang<sup>2</sup>  ·  Mathieu Salzmann<sup>1</sup>

 <sup>1</sup>EPFL CVLAb, Switzerland <sup>2</sup> Xi'an Jiaotong University, China
 

[Paper](https://arxiv.org/abs/2406.08894)

[WebPage](https://christy61.github.io/openmaterial.github.io/)

![image/png](https://cdn-uploads.huggingface.co/production/uploads/638884d65588554e2425e625/KY1UEji6ffL6sUYimg4no.png)

## Dataset

[+] 1001 unique shapes

[+] 295 material types with laboratory measured IOR

[+] 723 lighting conditions

[+] Physical based rendering with costomized BSDF for each material type

[+] 1001 uniques scenes, for each scene 90 images (50 for training, 40 for testing) with object mask, depth, camera pose, materail type annotations.

## Example Images

![image/png](https://cdn-uploads.huggingface.co/production/uploads/638884d65588554e2425e625/dlFmsdbJqFKnDUN3yg_S1.png)

<details>
  <summary> Click to see more examples</summary>
  
![image/png](https://cdn-uploads.huggingface.co/production/uploads/638884d65588554e2425e625/A9mmqEVW_3BgMWey5cPrC.png)
![image/png](https://cdn-uploads.huggingface.co/production/uploads/638884d65588554e2425e625/1k_zGTTZAYyJtcIDo0FOO.png)
![image/png](https://cdn-uploads.huggingface.co/production/uploads/638884d65588554e2425e625/w5P_MvlTXt6FMwEDMwPwe.png)
</details>

## Data structure

```
.
├── name_of_object/[lighing_condition_name]-[material_type]-[material_name]
│   ├── train
│   │   ├── images
│   │   │   ├── 000000.png
│   │   │   |-- ...
│   │   └── mask
│   │   │   ├── 000000.png
│   │   │   |-- ...
│   │   └── depth
│   │       ├── 000000.png
│   │       |-- ...
│   ├── test
│   │   ├── images
│   │   │   ├── 000000.png
│   │   │   |-- ...
│   │   └── mask
│   │   │   ├── 000000.png
│   │   │   |-- ...
│   │   └── depth
│   │       ├── 000000.png
│   │       |-- ...
│   └── transformas_train.json
│   └── transformas_test.json

```

## Usage

Going to have a example code at the link.

## Citation

If you find our work useful in your research, please cite:

```
@article{Dang24,
	title={OpenMaterial: A Comprehensive Dataset of Complex Materials for 3D Reconstruction},
	author={Zheng Dang and Jialu Huang and Fei Wang and Mathieu Salzmann},
	journal={arXiv preprint arXiv:2406.08894},
	year={2024}
}


```