---
license: cc-by-4.0
tags:
- computer-vision,
- inverse-rendering,
- photometric-stereo,
- computer-graphics,
- display,
- polarization,
- stereo,
- multi-light,
- illumination-multiplexing,
pretty_name: Display Inverse Rendering Dataset
size_categories:
- n<1K
papers:
  - title: "A Real-world Display Inverse Rendering Dataset"
    url: "https://michaelcsj.github.io/DIR/"
homepage: "https://michaelcsj.github.io/DIR/"
repository: "https://github.com/MichaelCSJ/DIR"
---
# Display Inverse Rendering Dataset
- 📄 [Paper (ArXiv)]()  
- 🌐 [Project Page](https://michaelcsj.github.io/DIR/)
- 💻 [GitHub Repository](https://github.com/MichaelCSJ/DIR)
  
## Introduction
This dataset is created for display inverse rendering, including multi-light stereo images captured by polarization cameras, and GT geometry (pixel-aligned point cloud and surface normals) scanned by high-precision 3D scanner.

## Structure
- DIR-basic: The basic version of the dataset released with the paper. It includes stereo polarized RAW images, RGB images from a reference view, and ground-truth surface normals and point clouds. All images are captured under a multi-light configuration projected through 16×9 superpixels on the display.

```
  ├── A
  │  ├──GT_geometry (for reference(main) view)
  │  │  ├──'normal.npy',
  │  │  ├──'normal.png',
  │  │  ├──'point_cloud_gt.npy'
  │  ├──main
  │  │  ├──diffuseNspecular
  │  │  │  ├──'000 - 143.png',
  │  │  │  ├──'black.png',
  │  │  │  ├──'white.png',
  │  │  ├──RAW_polar
  │  │  │  ├──'000 - 143_[SHUTTER_TIME].png',
  │  │  │  ├──'black_[SHUTTER_TIME].png',
  │  │  │  ├──'white_[SHUTTER_TIME].png',
  │  ├──side
  │  │  ├──diffuseNspecular
  │  │  │  ├──'000 - 143.png',
  │  │  │  ├──'black.png',
  │  │  │  ├──'white.png',
  │  │  ├──RAW_polar
  │  │  │  ├──'000 - 143_[SHUTTER_TIME].png',
  │  │  │  ├──'black_[SHUTTER_TIME].png',
  │  │  │  ├──'white_[SHUTTER_TIME].png',
  │  ├──mask.png
  │  ├──point_cloud.npy (unprojected pixel w.r.t. depth & focal length)
```

- DIR-pms: This dataset follows the DiLiGeNT format and has the same composition as **DIR-basic**. It provides multi-light RGB images from the reference view along with related information and the ground-truth normal maps.
- 
```
  ├── A [Suffix (default "PNG")]
  │  ├──'000 - 143.png',
  │  ├──'filenames.txt',
  │  ├──'light_directions.txt'
  │  ├──'light_intensities.txt',
  │  ├──'mask.png'
  │  ├──'Normal_gt.mat'
```

## TODO
- [x] ~~Release training code.~~
- [x] ~~Release `Display Inverse Rendering (DIR)` dataset.~~
- [ ] Release EXPANDED version of DIR datset (HDR).
- [ ] Release EXPANDED version of DIR datset (multi-distance).