Bihoi-data-samples / README.md
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metadata
pretty_name: Bihoi data samples
size_categories:
  - n<1K
tags:
  - bihoi
  - hand-object-interaction
  - bimanual-manipulation
  - 3d
  - mano
  - motion-capture

Bihoi data samples

This release is a 100-sequence subset of the full BIHOI dataset, covering bimanual hand–object interactions across 18 object categories. 88,570 frames at 30 fps, interpolated from 10 fps pose estimates.

Download

hf download YFEI002/Bihoi-data-samples --repo-type dataset --local-dir ./bihoi
cd bihoi
sha256sum -c SHA256SUMS
unzip BIHOI_100_standard_hoi_exports.zip

Format

Each sequence is stored in fwd_capture/<dataset>/<take>/standardized_hoi_30fps/.

File Contents
mano_left.npz, mano_right.npz MANO global_orient (T×3), hand_pose (T×45), transl (T×3), betas (10).
obj_pose.npz Object trans (T×3), quat (T×4, wxyz).
object_mesh.ply Canonical object mesh.
frames.npy, source_frame_ids.npy, timestamps_sec.npy Frame indices, source-frame mapping and timestamps.
metadata.json, table.json, README.md Sequence metadata, estimated table plane and format notes.

Units: meters and radians. Coordinates: right-handed, +Z up, tabletop at Z=0. MANO poses use axis-angle with flat_hand_mean=True. Object poses transform the supplied mesh into world coordinates.

sequences.csv lists all sequences and frame counts; SHA256SUMS provides file checksums. MANO model weights and RGB videos are not included.