Create README.md

README.md

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+# The test split of Drag-a-Move dataset
+
+This test set is used to evaluate [DragAPart](https://dragapart.github.io/) and [Puppet-Master](https://vgg-puppetmaster.github.io/).
+
+### How to use it?
+
+1. **Frame folders & Ground‑truth videos**
+   Under the dataset root, each sample has its own sub‑folder.  
+   Inside each sub‑folder you will find **14 PNG frames** extracted from the ground‑truth video:
+
+        {sample_id}/
+          cXXX_tYYY.png
+          cXXX_tYYY.png
+          …
+
+   where `cXXX` is the zero‑padded camera index and `tYYY` is the zero‑padded frame index.
+
+2. **Metadata**  
+   A `metadata.json` file in the dataset root maps each sample ID to two fields:
+
+   * `reverse` — `true` if the original motion runs backward (larger frame index first), otherwise `false`.
+   * `per_frame_drags` — the sparse motion trajectories as drags. It's an array of shape (14, 5, 4), where it specifies the starting coordinates and ending coordinates of the 5 drags on the 14 frames. The coordinates are normalized to [0, 1] range.
+
+### Dataset structure
+
+    Drag-a-Move-test-split/
+    ├── 00000/
+    │   ├── c031_t000.png
+    │   ├── c031_t010.png
+    │   └── … (14 frames total)
+    ├── 00001/
+    │   ├── c005_t020.png
+    │   └── …
+    ├── …
+    ├── metadata.json
+    └── README.md
+
+### Citation
+
+    @article{li2024dragapart,
+      title     = {DragAPart: Learning a Part-Level Motion Prior for Articulated Objects},
+      author    = {Li, Ruining and Zheng, Chuanxia and Rupprecht, Christian and Vedaldi, Andrea},
+      journal   = {arXiv preprint arXiv:2403.15382},
+      year      = {2024}
+    }
+
+    @article{li2024puppetmaster,
+      title     = {Puppet-Master: Scaling Interactive Video Generation as a Motion Prior for Part-Level Dynamics},
+      author    = {Li, Ruining and Zheng, Chuanxia and Rupprecht, Christian and Vedaldi, Andrea},
+      journal   = {arXiv preprint arXiv:2408.04631},
+      year      = {2024}
+    }