Datasets:

ZeyuLing
/

MotionFix

@@ -1,64 +1,80 @@
 ---
-license: cc-by-4.0
-task_categories:
-- other
 language:
 - en
 tags:
 - motion
-- human-motion
-- text-driven-motion-editing
-- smpl
-- amass
-pretty_name: MotionFix
 ---
-# MotionFix
-This dataset repository mirrors the released MotionFix data artifacts used for text-driven 3D human motion editing. MotionFix contains 6,730 triplets of source motion, target motion, and edit text. The uploaded `.pth.tar` packages contain processed motion tensors, not only annotation metadata.
-Upstream resources:
-- Project page: https://motionfix.is.tue.mpg.de/
-- Dataset license page: https://motionfix.is.tue.mpg.de/license.html
-- Code repository: https://github.com/athn-nik/motionfix
-- Paper: https://www.arxiv.org/abs/2408.00712
-## Files
-| file | size | sha256 | note |
-|---|---:|---|---|
-| `motionfix.pth.tar` | 5379761702 | `9d2de0ef80c97f5cf0fbe0579bf58ec22f504782aceacee8d72d9cbc93f8571c` | Full MotionFix release package with 6,730 triplets. |
-| `motionfix_val.pth.tar` | 263046195 | `6ec5b2da91705c32cb495be3b931d2c42136fcbcf5763eadad365052307116e7` | Validation split package, 330 triplets. |
-| `motionfix_test.pth.tar` | 805265131 | `cd2c59a69f0854f5b3cffeebc026fd6df2f63b75e813f6a6151cafa96b76eaea` | Test split package, 1,013 triplets. |
-| `splits.json` | 94284 | `1f91f945b76c85b2780fd9dbdce32bde1f14988a06ceecf16cb2eb4e02d0de45` | Local train/val/test split list. Contains one train id, 006722, that is absent from the full package and annotation JSON. |
-| `amt_motionfix_latest.json` | 6289990 | `8d999be2bffe086cfe2816aefdba944782dc3534e1c45e3fc4dcd5ac8755d203` | MotionFix metadata/annotation JSON, 6,730 entries. |
-## Data Format
-The `.pth.tar` files are Python pickle files containing dictionaries keyed by MotionFix sample id. Each item contains motion data:
-- `text`: edit instruction.
-- `motion_source`: source motion dictionary.
-- `motion_target`: target motion dictionary.
-Each motion dictionary contains `rots` `[T, 66]`, `trans` `[T, 3]`, `joint_positions` `[T, 22, 3]`, and `timestamp`. The observed validation and test packages use 120-frame clips.
-## Split Note
-`motionfix.pth.tar` contains the full 6,730-triplet release. The local `splits.json` contains 6,731 unique ids (`train=5388`, `val=330`, `test=1013`), but train id `006722` is absent from both the full package and `amt_motionfix_latest.json`. Consumers should filter missing ids when using `splits.json`.
-## License
-The MotionFix dataset license page states that the dataset is released under Creative Commons Attribution 4.0 International (CC-BY-4.0). The upstream code repository has a separate software license.
-## Citation
-```bibtex
-@inproceedings{athanasiou2024motionfix,
-  title = {{MotionFix}: Text-Driven 3D Human Motion Editing},
-  author = {Athanasiou, Nikos and Ceske, Alpar and Diomataris, Markos and Black, Michael J. and Varol, G{\"u}l},
-  booktitle = {SIGGRAPH Asia 2024 Conference Papers},
-  year = {2024}
-}
-```

 ---
+pretty_name: MotionFix MotionHub Format
 language:
 - en
+license: other
 tags:
 - motion
+- motion-editing
+- smpl-h
+- motionhub
+task_categories:
+- text-to-3d
 ---
+# MotionFix MotionHub Format
+This dataset contains the processed MotionFix motion-editing data in the MotionHub format.
+It stores paired source and target motions as SMPL-H 52-joint parameter files, plus editing instructions and split annotations.
+Please also follow the license and terms of the original MotionFix dataset.
+## Structure
+```text
+MotionFix/
+├── smplh_52/
+│   ├── train/
+│   ├── val/
+│   └── test/
+├── pairs/
+│   ├── train/
+│   ├── val/
+│   └── test/
+├── motionfix_train.json
+├── motionfix_val.json
+├── motionfix_train_val.json
+├── motionfix_test.json
+├── motionfix_all.json
+├── stats.json
+└── stats_target_only.json
+```
+## Splits
+| Split | Pairs | Frames | Hours |
+|---|---:|---:|---:|
+| train | 6,730 | 744,502 | 6.894 |
+| val | 330 | 36,420 | 0.337 |
+| test | 1,013 | 111,454 | 1.032 |
+| train_val | 7,060 | 780,922 | 7.231 |
+| all | 8,073 | 892,376 | 8.263 |
+Each pair has one source motion and one target motion. The `smplh_52/` directory therefore contains 16,146 `.npz` files.
+## Annotation Fields
+Each item in `motionfix_*.json` includes:
+- `motion_path`, `smplh_path`: target motion path.
+- `source_motion_path`, `source_smplh_path`: source motion path.
+- `caption_path`, `edit_pair_path`: pair metadata path.
+- `caption`, `instruction`: editing instruction text.
+- `fps`, `duration`, `num_frames`, `language`.
+Each file in `pairs/` includes the source/target motion paths, the edit instruction, source/target timestamps, and canonicalization metadata.
+## Motion Format
+Each `.npz` stores SMPL-H compatible fields:
+- `poses`: `(T, 156)` axis-angle pose parameters.
+- `global_orient`: `(T, 3)`.
+- `body_pose`: `(T, 63)`.
+- `left_hand_pose`, `right_hand_pose`: `(T, 45)` each.
+- `trans`, `transl`: `(T, 3)` body-model translation.
+- `betas`: zero-beta shape vector.
+- `expression`: zero expression vector.
+- `mocap_framerate`, `gender`, `num_frames`.
+The processed motions are canonicalized to the MotionHub SMPL-H convention and use body-model translation.

motionfix_all.json ADDED Viewed