Syn4D: A Multiview Synthetic 4D Dataset

Syn4D is a synthetic 4D dataset with multi-view RGB videos, depth, masks, tracking geometry, and supporting object mesh metadata.

Layout

data/
  syn4d_v1_stride_1/       # Syn4D v1 archives for stride-1 use
  syn4d_v1_stride_5/       # Syn4D v1 archives for stride-5 use
  syn4d_sim/               # simulation subset archives
  metadata/new_weight_bone/

code/visualizer/
  README.md
  requirements.txt
  run.py

code/bedlam2/
  README.md
  smplx_anim_to_alembic_batch.py
  smplx_anim_to_objs_batch.py

LICENSE
README.md
THIRD_PARTY_NOTICES.md
LICENSES/
resources/

Each Syn4D v1 split includes sequence_to_asset_mapping.csv, which maps dataset sequences to their underlying assets. The same mapping files are also referenced in THIRD_PARTY_NOTICES.md together with third-party asset notices and license references.

data/syn4d_v1_stride_1 and data/syn4d_v1_stride_5 contain Syn4D v1 packaged for different sampling strides. data/syn4d_sim contains the simulation subset. data/metadata contains shared object mesh and rig metadata used by the visualizer and dataset loaders.

The visualizer code is included under code/visualizer/. BEDLAM2 download and SMPL-X motion-to-vertex-cache conversion instructions are included under code/bedlam2/.