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AMASS-Annotation-Unifier

Unify text-motion datasets (like BABEL, HumanML3D, KIT-ML) into a common motion-text representation.

All these datasets have a lot of common source of motions, but the process are usually different:

• KIT-ML use Master Motor Map
• HumanML3D extract and transform joints from SMPL
• BABEL use raw SMPL pose parameters

The goal of this repo is to create a common reprensentation of the annotations for these datasets. The output of each of these scripts is a json file, like this one (for HumanML3D):

{
  "000000": {
    "path": "KIT/3/kick_high_left02_poses",
    "duration": 5.82,
    "annotations": [
      {
        "seg_id": "000000_0",
        "text": "a man kicks something or someone with his left leg.",
        "start": 0.0,
        "end": 5.82
      },
      ...

where we get the original path from AMASS (SMPL+H G version), the duration of the motion, and the annotations (ID, text, start, end).

Installation

Make sure to have these package in your python3 environment:

pip install pandas
pip install tqdm
pip install numpy
pip install orjson

For AMASS (see below), please download the SMPL+H G version.

Dataset processes

HumanMl3D

1. Download and put AMASS motions into datasets/AMASS/.
2. Clone the HumanML3D repo to datasets/HumanML3D/ and unzip the texts.zip file.
3. Execute the cmd:

python humanml3d.py

For now, humanact12 is skipped. I will update the repo with the instructions on how to get the original SMPL fits of humanact12 (based on the PHSPDataset).

KITML

1. Download and put AMASS motions into datasets/AMASS/.
2. Download [KIT-ML])(https://motion-annotation.humanoids.kit.edu/dataset/) motions, and unzip in the folder datasets/kit-mocap/.
3. Execute the cmd:

python kitml.py

The script kitml_text_preprocess.py is made to produce the files kitml_process/amass-path2kitml.json and kitml_process/kitml_not_found_amass.json. It is already executed so you don't need to.

BABEL

1. Download and put AMASS motions into datasets/AMASS/.
2. Download the BABEL annotations from TEACH into datasets/babel-teach/.
3. Execute the cmd:

python babel.py

Merging the datasets

To use all datasets at the same time, we can use the cmd:

python merge.py

It will create a json file (in outputs/babel_humanml3d_kitml.json) structured in this way:

{
 "CMU/75/75_18_poses": {
    "duration": 5.05,
    "annotations": [
      {
        "seg_id": "babel_04565_seq_0",
        "babel_id": "67ed4f2f-ab40-4e64-98e5-d6185a9e8df4",
        "text": "sit",
        "start": 0.0,
        "end": 5.05
      },
      {
        "seg_id": "babel_04565_seg_4",
        "babel_id": "bb06e44a-641f-4dc3-a7fb-f2a2259ec095",
        "text": "sit",
        "start": 1.69,
        "end": 3.252
      },
      {
        "seg_id": "humanml3d_007848_2",
        "text": "a person sits down on an object, then stands back up.",
        "start": 0.0,
        "end": 5.05
      },
      {
        "seg_id": "kitml_02926_0",
        "text": "A person sits down on a chair behind him and stands up again.",
        "start": 0.0,
        "end": 5.05
      },
      ...

Credits

For all the datasets, be sure to read and follow their license agreements, and cite them accordingly. If you find this code useful in your research, you may cite this paper:

@article{petrovich23tmr,
    title     = {{TMR}: Text-to-Motion Retrieval Using Contrastive {3D} Human Motion Synthesis},
    author    = {Petrovich, Mathis and Black, Michael J. and Varol, G{\"u}l},
    journal   = {arXiv preprint},
    year      = {2023}
}