omnifall / statistics.md
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OmniFall Dataset Statistics

Overview

Metric Value
Total datasets 10 (5 multi-view, 5 single-view)
Total videos 14,982
Total segments (single-view) 32,840
Total segments (multi-view) 71,846
Total duration (single-view) 33.34 hours
Total duration (multi-view) 82.46 hours
Activity classes 16 (core 10 + extended 6)
Average segment duration 4.13s
Median segment duration 2.70s

Duration breakdown

Component Segments (SV) Duration (SV)
OF-Syn 19,228 16.88h
OF-ItW (OOPS) 4,022 2.65h
OF-Staged (single-view) 9,590 13.81h
OF-Staged (multi-view) 46,913 61.51h

Per-Dataset Statistics

Dataset Type Videos Segments (SV) Segments (MV) Duration (SV) Duration (MV) Avg Seg (s)
CAUCAFall single 100 258 - 0.28h - 3.85
CMDFall multi 384 6,026 42,143 7.12h 49.80h 4.25
EDF multi 10 254 508 0.22h 0.44h 3.14
GMDCSA24 single 160 458 - 0.36h - 2.80
Le2i single 190 967 - 0.79h - 2.95
MCFD multi 192 169 1,352 0.20h 1.60h 4.26
OCCU multi 10 245 484 0.25h 0.48h 3.54
OOPS single 818 4,022 - 2.65h - 2.38
UP-Fall multi 1,118 1,213 2,426 4.59h 9.18h 13.63
OF-Syn single 12,000 19,228 - 16.88h - 3.16

SV = single-view (one segment per camera view). MV = multi-view (all synchronized camera views counted separately). Single-view datasets have identical SV and MV counts.

Class Distribution

Class Segments (SV) Segments (MV) Duration (SV) Duration (MV) % Segments (SV) % Segments (MV)
walk 4,137 8,694 5.66h 16.77h 12.6% 12.1%
fall 4,517 6,722 2.79h 4.73h 13.8% 9.4%
fallen 3,169 5,602 3.11h 6.58h 9.6% 7.8%
sit_down 1,895 3,204 1.19h 1.65h 5.8% 4.5%
sitting 3,350 1,959 3.91h 2.85h 10.2% 2.7%
lie_down 1,589 2,054 1.29h 1.93h 4.8% 2.9%
lying 2,597 1,211 3.35h 2.26h 7.9% 1.7%
stand_up 3,593 9,211 2.71h 8.54h 10.9% 12.8%
standing 3,747 3,317 4.05h 4.56h 11.4% 4.6%
other 3,229 4,939 4.79h 11.64h 9.8% 6.9%
kneel_down 33 0 0.02h 0.00h 0.1% 0.0%
kneeling 236 0 0.13h 0.00h 0.7% 0.0%
squat_down 59 0 0.03h 0.00h 0.2% 0.0%
squatting 50 0 0.03h 0.00h 0.2% 0.0%
crawl 110 0 0.10h 0.00h 0.3% 0.0%
jump 529 0 0.16h 0.00h 1.6% 0.0%

Classes 0-9 (core) are used by all components. Classes 10-15 (extended) appear only in OF-ItW and OF-Syn; they can be mapped to "other" (class 9) for compatibility with staged datasets.