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TEDWB1k

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Modalities:
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Languages:
English
Size:
1K<n<10K
Tags:
3d-human
smpl-x
flame
avatar
gaussian-splatting
video
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metadata 
license: cc-by-nc-nd-4.0
language:
  - en
pretty_name: TEDWB1k
size_categories:
  - 1K<n<10K
task_categories:
  - other
tags:
  - 3d-human
  - smpl-x
  - flame
  - avatar
  - gaussian-splatting
  - video
  - motion-capture
  - ted
extra_gated_prompt: >-
  TEDWB1k is derived from TED talks (https://www.ted.com), which are licensed
  under CC-BY-NC-ND 4.0 by TED Conferences, LLC. The dataset author claims no
  rights over the underlying TED content; this dataset is distributed for
  non-commercial academic research only and may be removed at any time at TED's
  request. By accessing TEDWB1k you agree to the terms below.
extra_gated_fields:
  Name: text
  Email: text
  Affiliation: text
  Country: country
  Intended use:
    type: select
    options:
      - Academic research (university / lab)
      - Independent / personal research
      - Other (explain in 'Notes')
  Notes: text
  I will use TEDWB1k only for non-commercial academic research: checkbox
  I will credit TED in any publication, demo, or derivative work that uses TEDWB1k: checkbox
  I will not redistribute the data (in full or in part) outside my research group: checkbox
  I acknowledge that TED Conferences LLC owns the underlying video content and may request removal at any time: checkbox
extra_gated_button_content: I agree — request access
configs:
  - config_name: subjects
    data_files:
      - split: train
        path: metadata/subjects_train.parquet
      - split: train_subset_x1
        path: metadata/subjects_train_subset_x1.parquet
      - split: train_subset_x12
        path: metadata/subjects_train_subset_x12.parquet
      - split: train_val
        path: metadata/subjects_train_val.parquet
      - split: test
        path: metadata/subjects_test.parquet

TEDWB1k

👀 Want to browse before requesting access? A public preview lives at initialneil/TEDWB1k-preview. It has the same 5 split tabs in the HF Dataset Viewer with thumbnails for all 1,431 subjects, plus full downloadable data for 12 sample subjects — no agreement required. Use that to explore. Use this (gated) repo when you want the full training data.

1,431 TED-talk speaker videos with per-frame SMPL-X + FLAME tracking, ready for 3D human / avatar research.

TEDWB1k is a tracked subset of TED talks built with the HolisticTracker (ehm-tracker) pipeline. Every subject is shot-segmented, background-matted, and fitted with whole-body SMPL-X (body + hands), FLAME (face + jaw + eyes), and per-shot whole-image keypoints. It is the dataset used to train the HolisticAvatar feed-forward Gaussian avatar model.

License: TED talks on ted.com are CC-BY-NC-ND 4.0. This dataset matches the upstream license: CC-BY-NC-ND 4.0. Non-commercial research only, attribution required, no redistribution of modified or derivative versions.

At a glance

Split Subjects Approx download Notes
train_subset_x1 1 ~80 MB tiny single-subject overfit (⊂ train)
train_subset_x12 12 ~1 GB 12-subject overfit (⊂ train)
train_val 20 ~2 GB monitored during training (⊂ train)
test 70 ~10 GB identity-disjoint evaluation set
train 1,361 ~190 GB full training pool
total 1,431 ~200 GB

train (1,361) and test (70) are identity-disjoint and together cover all 1,431 subjects. train_subset_x1, train_subset_x12, and train_val are all subsets of train — train_val are the 20 subjects whose frames the original training run reserved for validation monitoring (see dataset_frames.json); the small overfit subsets are intended for debugging.

The HF Dataset Viewer above renders one row per subject with a thumbnail of the final tracked SMPL-X overlay (track_smplx.jpg) and the per-subject frame and shot counts. Switch between the 5 split tabs to browse each subset.

Quick start 

pip install huggingface_hub

# Smallest possible test (1 subject):
python load_tedwb1k.py --split train_subset_x1 --out ./tedwb1k_x1

# 12-subject overfit set:
python load_tedwb1k.py --split train_subset_x12 --out ./tedwb1k_x12

# 20-subject training-monitor set (subset of train):
python load_tedwb1k.py --split train_val --out ./tedwb1k_train_val

# 70-subject test set:
python load_tedwb1k.py --split test --out ./tedwb1k_test

# Full training pool (1361 subjects):
python load_tedwb1k.py --split train --out ./tedwb1k_train

load_tedwb1k.py is included in this repo (or grab it from ehm-tracker/release/load_tedwb1k.py). It downloads only the matching subjects, merges per-subject tracking pickles into the format HolisticAvatar's TrackedData expects, extracts frames + mattes, and writes a fresh extra_info.json with absolute paths to the user's local data dir.

After it finishes, point your training config at --out:

DATASET:
  data_path: ./tedwb1k_test

…and you can train / fine-tune HolisticAvatar with zero code changes to that codebase.

Repository layout 

TEDWB1k/
├── README.md                          this file
├── train.txt                          1,361 subject ids (full training pool)
├── train_subset_x1.txt                1 subject id (single-subject overfit, ⊂ train)
├── train_subset_x12.txt               12 subject ids (small overfit, ⊂ train)
├── train_val.txt                      20 subject ids (training monitor, ⊂ train)
├── test.txt                           70 subject ids (identity-disjoint evaluation)
├── dataset_frames.json                frame-level train/valid/test split used by HolisticAvatar
├── metadata/
│   ├── subjects_train.parquet            per-split subject tables w/ embedded source-frame previews (HF Viewer)
│   ├── subjects_train_subset_x1.parquet
│   ├── subjects_train_subset_x12.parquet
│   ├── subjects_train_val.parquet
│   ├── subjects_test.parquet
│   ├── subjects.csv                      all rows in one CSV (programmatic use)
│   ├── skipped.txt                       (empty for the public release)
│   ├── previews/<id>.jpg                 1024×1024 first source frame per subject (also embedded in parquets)
│   ├── ehm/<id>.jpg                      full-res SMPL-X overlay grid (final tracking stage, ~13 MB)
│   ├── flame/<id>.jpg                    full-res FLAME overlay grid (intermediate stage, ~6 MB)
│   └── base/<id>.jpg                     full-res PIXIE+Sapiens overlay grid (stage 1, ~4 MB)
└── subjects/<video_id>/
    ├── tracking/
    │   ├── optim_tracking_ehm.pkl     per-frame SMPL-X + FLAME parameters
    │   ├── id_share_params.pkl        per-video shape / scale / joint offsets
    │   └── videos_info.json           frame-key listing for this video
    ├── frames.tar                     per-shot RGB JPGs (no audio, no video)
    └── mattes.tar                     per-shot RMBG-v2 alpha mattes

Per-subject visualizations: each subject has 4 standalone files under metadata/:

  • metadata/previews/<id>.jpg — a clean 1024×1024 source frame (the first frame of the first shot). These are what the HF Dataset Viewer renders in the preview column of the per-split parquets.
  • metadata/ehm/<id>.jpg — the full-resolution SMPL-X overlay grid from the final tracking stage (large vertical contact sheet).
  • metadata/flame/<id>.jpg — the FLAME overlay grid from the intermediate face-fitting stage.
  • metadata/base/<id>.jpg — the stage-1 PIXIE+Sapiens overlay grid.

You can fetch a single subject's QC visualizations without downloading the heavy frames.tar/mattes.tar by hitting any of those paths directly via huggingface_hub.hf_hub_download.

Each frames.tar unpacks to:

<shot_id>/000000.jpg, 000001.jpg, ..., 0000NN.jpg

where <shot_id> is NNNNNN_NNNNNN encoding start_frame_end_frame — the inclusive keyframe indices of the shot inside the source TED talk, sampled at 0.5 fps (one keyframe every 2 seconds). For example 000015_000019 is keyframes 15..19 (5 frames, covering seconds 30..38 in the source video). The JPGs inside the directory are indexed locally per shot starting at 000000.jpg.

We do not redistribute the original .mp4 clips or the per-shot audio.wav extracts — those are direct excerpts of TED's source content. Only the per-frame JPGs (plus their alpha mattes) and the SMPL-X / FLAME tracking parameters are included.

Tracking format

Per-frame data inside optim_tracking_ehm.pkl (after the loader merge, keyed by {video_id: {frame_key: ...}}):

{
    'smplx_coeffs': {
        'global_pose':       (3,),       # axis-angle
        'body_pose':         (21, 3),    # axis-angle per joint
        'left_hand_pose':    (15, 3),
        'right_hand_pose':   (15, 3),
        'exp':               (50,),      # SMPL-X expression
        'body_cam':          (3,),
        'camera_RT_params':  (3, 4),
    },
    'flame_coeffs': {
        'pose_params':       (3,),
        'jaw_params':        (3,),
        'neck_pose_params':  (3,),       # all zero (not optimized)
        'eye_pose_params':   (6,),       # optimized
        'eyelid_params':     (2,),
        'expression_params': (50,),
        'cam':               (3,),
        'camera_RT_params':  (3, 4),
    },
    'body_crop':       {'M_o2c': (3,3), 'M_c2o': (3,3), ...},
    'head_crop':       {'M_o2c': (3,3), 'M_c2o': (3,3)},
    'left_hand_crop':  {...},
    'right_hand_crop': {...},
    'body_lmk_rlt':    {'keypoints': (133,2), 'scores': (133,)},
    'dwpose_raw':      {'keypoints': (133,2), 'scores': (133,), 'bbox': (4,)},
    'head_lmk_203':    {...},
    'head_lmk_70':     {...},
    'head_lmk_mp':     {...},
    'left_mano_coeffs':  {...},
    'right_mano_coeffs': {...},
}

Per-video identity data inside id_share_params.pkl (keyed by {video_id: ...}):

{
    'smplx_shape':      (1, 200),
    'flame_shape':      (1, 300),
    'left_mano_shape':  (1, 10),
    'right_mano_shape': (1, 10),
    'head_scale':       (1, 3),
    'hand_scale':       (1, 3),
    'joints_offset':    (1, 55, 3),
}

Pipeline

Tracking was produced by ehm-tracker (a fork of LHM_Track) in three stages:

  1. track_base — per-frame perception:
    • PIXIE for SMPL-X body initialization
    • Sapiens 1B for 133 whole-body keypoints
    • HaMeR for per-hand MANO regression on left/right hand crops
    • MediaPipe FaceMesh for 478-point face landmarks
    • additional 70- and 203-point face landmark models for face fitting
    • face / hand crop computation from the keypoints
  2. flame — 2-stage FLAME optimization for face, jaw, expression, eyes, eyelids.
  3. smplx — 2-stage whole-body SMPL-X optimization (body, hands, expression) consistent with the FLAME face fit.

Each stage produces a sanity-check overlay grid (track_base.jpg, track_flame.jpg, track_smplx.jpg) that you can browse via the HF Dataset Viewer thumbnail column or in the per-subject directory.

Known issues / caveats

Please read these before training — they affect what is and isn't reliable in the data.

  • neck_pose_params is all zero. Not optimized by the pipeline; relying on neck rotation from FLAME will give you a static neck.
  • Eyes only live in flame_coeffs. smplx_coeffs has no eye_pose field — the flame_coeffs.eye_pose_params is the source of truth. They are non-zero (range roughly [-0.54, 0.53]).
  • Per-subject pickles are flat. If you skip the loader and read subjects/<id>/tracking/optim_tracking_ehm.pkl directly, the top-level keys are frame keys (e.g. '000015_000019/000000'), NOT video ids. The loader wraps them under {video_id: ...} so the merged file matches the format HolisticAvatar's dataset/data_loader.py::TrackedData expects.
  • dataset_frames.json train/valid/test split is shot-limited. During the original training run we limited val and test to the first 2 shots of each video to keep evaluation fast. The per-subject videos_info.json retains every shot, so the per-subject optim_tracking_ehm.pkl has all frames — only the merged dataset_frames.json is restricted.
  • No videos, no audio. We do not redistribute the original TED .mp4 clips or the per-shot audio.wav extracts. Only per-frame JPGs (and their alpha mattes) plus the SMPL-X / FLAME tracking parameters are shipped.
  • The original frames are stored as JPG at the source resolution from yt-dlp of the TED talks. We did not re-encode.

License

CC-BY-NC-ND 4.0. Non-commercial research use only. Attribution required. No derivatives — you may not distribute modified or remixed versions of this dataset.

The tracking parameters, JPG frames, and mattes are all derived works of TED talk videos that are themselves CC-BY-NC-ND on ted.com. This dataset matches the upstream license to remain compatible with TED's source restrictions.

Links