WorldCrafter / README.md
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---
language:
- en
license: other
license_name: worldcrafter-academic-research-only
license_link: LICENSE
pretty_name: WorldCrafter dataset
configs:
- config_name: default
data_files:
- split: train
path: metadata/samples.jsonl
size_categories:
- 10K<n<100K
task_categories:
- image-to-video
- text-to-video
tags:
- worldcrafter
- camera-control
- video
- academic-research-only
- camera-pose
extra_gated_heading: Agree to access the dataset
extra_gated_description: >-
This dataset is restricted to non-commercial academic research at universities
and non-profit academic research institutions. Read the Dataset Access Agreement linked on this page,
provide your institution and research purpose, and accept the agreement.
Download access is granted automatically to your Hugging Face account upon submission.
extra_gated_button_content: Agree and access dataset
extra_gated_prompt: "Read the Dataset Access Agreement: https://huggingface.co/datasets/Drexubery/WorldCrafter/blob/main/LICENSE. By submitting, you accept its academic-research-only terms. Please consider starring https://github.com/TencentARC/WorldCrafter to support our open-source work; this is optional."
extra_gated_fields:
Full legal name: text
University or non-profit academic research institution: text
Department and academic position: text
Institutional email address: text
Institutional profile or research group URL: text
Research project and intended use: text
I have read and accept the WorldCrafter Academic Research Only Dataset License: checkbox
I will use the dataset solely for non-commercial academic research and not for commercial research or products: checkbox
I will not redistribute the dataset or share access and understand that each researcher must apply individually: checkbox
---
# WorldCrafter dataset
**High-quality videos with captions and camera annotations for camera-controlled video generation and WorldCrafter fine-tuning.**
[Project code](https://github.com/TencentARC/WorldCrafter) · [Project page](https://drexubery.github.io/WorldCrafter/)
If you find this release useful, please **[star WorldCrafter on GitHub](https://github.com/TencentARC/WorldCrafter)** to support our open-source work. A star is appreciated but is not required for access.
## Preview
Most videos in the WorldCrafter dataset feature subject-following camera motion, helping models learn camera control for tracking and following subjects.
<video src="https://huggingface.co/datasets/Drexubery/WorldCrafter-preview/resolve/8738c69d65b3eac30aa500624db7006ba2f486d3/preview.mp4" poster="https://huggingface.co/datasets/Drexubery/WorldCrafter-preview/resolve/8738c69d65b3eac30aa500624db7006ba2f486d3/preview.jpg" controls autoplay muted loop playsinline width="100%"></video>
## Access agreement
This dataset is available for **non-commercial academic research only**.
Read the [Dataset Access Agreement](https://huggingface.co/datasets/Drexubery/WorldCrafter/blob/main/LICENSE),
then sign in to Hugging Face, provide your institution and research purpose,
and accept the agreement using the access form on this page. Download access
is granted automatically to your Hugging Face account upon submission.
## Contents
| Item | Count |
|---|---:|
| Unique source MP4 videos | 19,972 |
| Camera annotation JSON records | 20,434 |
| Valid target chunk entries | 77,642 |
Videos are deduplicated by their source-file path. Multiple sample records can
refer to different segments of one source video. The release preserves complete
source MP4 files and complete camera histories; the valid index selects target
chunks, rather than trimming away history required by the training sampler.
The dataset includes the existing video captions. Precomputed latent features
and depth maps are not included.
## Layout
```text
archives/videos-00000.tar # bounded video shards
archives/cameras-00000.tar.gz # portable camera annotations
metadata/samples.jsonl # sample-to-video mapping, existing caption, crop/cut
metadata/videos.jsonl # unique videos, byte sizes and SHA-256
metadata/cameras.jsonl # camera record sizes and SHA-256
metadata/valid_chunk_indices.json # unchanged selected feature-name -> chunk IDs
metadata/shards.json # archive sizes, members and SHA-256
scripts/download_dataset.py # authenticated download, verification and extraction
release.json # dataset version and provenance
```
Extract all archives into the same dataset directory. Video members live under
`videos/` and annotation members under `cameras/`. Public paths are relative and
do not depend on internal storage mounts.
## Camera and sampling conventions
Camera poses and intrinsics are estimated using **[Depth Anything 3](https://huggingface.co/depth-anything/DA3NESTED-GIANT-LARGE-1.1)**
(Nested Giant–Large, version 1.1), a model for reconstructing scene geometry from multiple images.
We sample 9 anchor frames from each 33-frame processed chunk at offsets
`[0, 4, 8, 12, 16, 20, 24, 28, 32]` and estimate them jointly with the video's reference frame.
The predicted poses are converted to camera-to-world transforms and expressed relative
to the video reference camera and to each chunk's first anchor. These annotations
are model estimates at the sampled anchors, rather than measured ground truth or dense per-frame poses.
- `camera_pose_rel_video_c2w`: `[chunks, 9, 4, 4]`, camera-to-world poses relative to the video's reference camera.
- `camera_pose_rel_chunk_c2w`: `[chunks, 9, 4, 4]`, poses relative to the first anchor of each chunk.
- `camera_K_norm`: `[chunks, 9, 4]`, normalized `[fx, fy, cx, cy]` using the model-processed image dimensions.
- `camera_valid_mask`: `[chunks, 9]`, validity flags.
- `camera_anchor_frame_idx`: source-video frame indices.
- `camera_anchor_processed_frame_idx`: indices after temporal selection.
- `selected_start_frame`, `selected_end_frame`, `stride`, `fps`, and the sample's original `cut` and `crop`: alignment metadata for reproducing preprocessing.
## Download
Sign in to Hugging Face, complete the access form on this page, and accept the
agreement to receive download access automatically. Use your own account and
do not share access tokens:
```bash
pip install huggingface_hub
hf auth login
hf download Drexubery/WorldCrafter --repo-type dataset --local-dir WorldCrafter-data
python WorldCrafter-data/scripts/download_dataset.py --root WorldCrafter-data --verify --extract
```
Keep approximately 400 GB free if retaining both downloaded archives and extracted
videos. Exact archive sizes and checksums are recorded in `metadata/shards.json`.