| # OmniFall Dataset Statistics |
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| ## Overview |
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| | 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 | |
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| ### Duration breakdown |
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| | 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 | |
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| ## Per-Dataset Statistics |
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| | 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 | |
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| 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. |
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| ## Class Distribution |
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| | 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% | |
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| 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. |
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