pedroodb/glosl-lsfb

GloSL — LSFB-CONT — Continuous French-Belgian Sign Language

Part of GloSL, a set of continuous sign language translation corpora in one format.

• Sign language: French Belgian Sign Language (LSFB) (sfb)
• Spoken language: French (fr)
• Domain: conversations and narratives, lab recordings
• Samples: 5,436 (10.5 h) — splits {'train': 4476, 'dev': 155, 'test': 805}
• Split policy: glosl-splits-v1, imported — LSFB-CONT official split, signer- and session-disjoint (Fink et al.) (see card.json and diagnostics/)
• License: CC BY-NC-SA 4.0 (Corpus LSFB, corpus-lsfb.be/conditions.php; cite Meurant 2015) — public; source: https://lsfb.info.unamur.be/
• Cite: Fink et al., LSFB-CONT/LSFB-ISOL (UNamur)

Files

annotations.csv, card.json, poses/<NNNN>/<id>.pose, videos/<NNNN>/<id>.mp4 (same frames as the pose). card.json holds the full provenance.

annotations.csv columns (same in every GloSL dataset; empty when not applicable): id, split, text, gloss, gloss_type, signer, start, end, fps, n_frames, video_ref, pose_file, video_file.

Poses

mediapipe-holistic, 543 points (POSE_LANDMARKS 33, FACE_LANDMARKS 468, LEFT_HAND_LANDMARKS 21, RIGHT_HAND_LANDMARKS 21), 3D. Coordinates: pixels of the frame the pose refers to (header width x height, depth 0); z raw. Confidence: body = MediaPipe visibility (1.0 where the source shipped none); face/hands 1 when detected; missing point = (0,0,0) with confidence 0. Frame rate: native, per file (also in annotations.csv). Normalization (glosl-norm-v1) is applied at load time, not stored. Note: reconstructed from LSFB-CONT per-video MediaPipe component .npy (pose/face/left_hand/right_hand); refined-iris face points dropped (478->468) for canonical-layout uniformity; clips sliced by ms offsets at 50fps; normalization applied at LOAD time (KB/05).