| --- |
| license: cc-by-nc-4.0 |
| task_categories: |
| - image-segmentation |
| tags: |
| - mirror-detection |
| - segmentation |
| - edge-detection |
| - computer-vision |
| pretty_name: Progressive Mirror Detection (PMD) |
| size_categories: |
| - 1K<n<10K |
| --- |
| |
| # Progressive Mirror Detection (PMD) Dataset |
|
|
| The **PMD** dataset is a benchmark for mirror surface detection introduced in the CVPR 2020 paper [*Progressive Mirror Detection*](https://jiaying.link/cvpr2020-pgd/). |
|
|
| ## Dataset Statistics |
|
|
| | Split | Images | Mask | Edge | |
| |-------|-------:|:----:|:----:| |
| | train | 5,095 | ✓ | ✓ | |
| | test | 571 | ✓ | — | |
| | **total** | **5,666** | | | |
|
|
| ## Columns |
|
|
| | Column | Type | Description | |
| |--------|------|-------------| |
| | `image_id` | string | Original filename stem (e.g. `000000000164`), unique within each split | |
| | `image` | Image (RGB JPEG) | Input scene photograph | |
| | `mask` | Image (grayscale PNG) | Binary mirror segmentation mask | |
| | `edge` | Image (grayscale PNG) | Mirror edge map (train only; `None` for test) | |
|
|
| ## Usage |
|
|
| ```python |
| from datasets import load_dataset |
| |
| ds = load_dataset("garrying/PMD") |
| |
| sample = ds["train"][0] |
| sample["image_id"] # original filename stem, e.g. "000000000164" |
| sample["image"] # PIL Image (RGB) |
| sample["mask"] # PIL Image (grayscale) |
| sample["edge"] # PIL Image (grayscale, None for test) |
| ``` |
|
|
| ## Converting Back to Raw Files |
|
|
| A helper script [`parquet_to_raw.py`](parquet_to_raw.py) is included to restore the original folder layout: |
|
|
| ```bash |
| # download the script |
| huggingface-cli download garrying/PMD parquet_to_raw.py --repo-type dataset --local-dir . |
| |
| # convert all splits |
| python parquet_to_raw.py --repo garrying/PMD --out PMD |
| ``` |
|
|
| Output layout: |
| ``` |
| PMD/ |
| train/ image/ mask/ edge/ |
| test/ image/ mask/ |
| ``` |
|
|
| ## Pretrained Model |
|
|
| A pretrained **PMDNet** checkpoint is available at [`garrying/PMD-PMDNet`](https://huggingface.co/garrying/PMD-PMDNet). |
|
|
| ## License |
|
|
| This dataset is released under [CC BY-NC 4.0](https://creativecommons.org/licenses/by-nc/4.0/). |
| Please cite the paper below if you use this dataset in your work. |
|
|
| ## Citation |
|
|
| ```bibtex |
| @INPROCEEDINGS{PMD:2020, |
| Author = {Jiaying Lin and Guodong Wang and Rynson W.H. Lau}, |
| Title = {Progressive Mirror Detection}, |
| Booktitle = {Proc. CVPR}, |
| Year = {2020} |
| } |
| ``` |
|
|
| ## Contact |
|
|
| csjylin@gmail.com |
|
|
