Figure 1.

Figure 2.

Figure 3.

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Figure 6.

Figure 7.

Figure 8.

Comparison table for classification, labelling and coding of video status for dual lane speed climbing_
| Dual-lane climb state | Annotation | Encode | Videos Quantities |
|---|---|---|---|
| left flash, right flash | 1-1 | 0 | 237 |
| left flash, right slip | 1-2 | 1 | 86 |
| left flash, right fall | 1-3 | 2 | 57 |
| left flash, right empty | 1-4 | 3 | 72 |
| left slip, right flash | 2-1 | 4 | 93 |
| left slip, right slip | 2-2 | 5 | 45 |
| left slip, right fall | 2-3 | 6 | 20 |
| left slip, right empty | 2-4 | 7 | 31 |
| left fall, right flash | 3-1 | 8 | 44 |
| left fall, right slip | 3-2 | 9 | 10 |
| left fall, right fall | 3-3 | 10 | 29 |
| left fall, right empty | 3-4 | 11 | 15 |
| left empty, right flash | 4-1 | 12 | 90 |
| left empty, right slip | 4-2 | 13 | 20 |
| left empty, right fall | 4-3 | 14 | 23 |
Table of 3D ResNet model classification report
| Class | Precision | Recall | F1-Score | Support |
|---|---|---|---|---|
| 0 (L-Flash; R-Flash) | 0.91 | 0.95 | 0.93 | 594 |
| 1 (L-Flash; R-Slip) | 0.85 | 0.91 | 0.88 | 190 |
| 2 (L-Flash; R-Fall) | 0.95 | 0.82 | 0.88 | 131 |
| 3 (L-Flash; R-Empty) | 0.95 | 0.96 | 0.95 | 164 |
| 4 (L-Slip; R-Flash) | 0.94 | 0.82 | 0.88 | 244 |
| 5 (L-Slip; R-Slip) | 0.93 | 0.92 | 0.93 | 125 |
| 6 (L-Slip; R-Fall) | 0.89 | 0.98 | 0.93 | 57 |
| 7 (L-Slip; R-Empty) | 0.95 | 0.94 | 0.95 | 83 |
| 8 (L-Fall; R-Flash) | 0.93 | 0.93 | 0.93 | 124 |
| 9 (L-Fall; R-Slip) | 0.95 | 0.95 | 0.95 | 20 |
| 10 (L-Fall; R-Fall) | 0.84 | 0.91 | 0.88 | 58 |
| 11 (L-Fall; R-Empty) | 1.00 | 0.79 | 0.88 | 24 |
| 12 (L-Empty; R-Flash) | 0.99 | 0.98 | 0.99 | 250 |
| 13 (L-Empty; R-Slip) | 0.99 | 0.99 | 0.99 | 72 |
| 14 (L-Empty; R-Fall) | 0.98 | 1.00 | 0.99 | 52 |
Performance Comparison of 3D ResNet, 2D CNN and C3D in Terms of Accuracy and Loss_
| Model | Accuracy | Loss |
|---|---|---|
| 3D ResNet | 92.78% | 0.57 |
| 2D CNN | 25.62% | 2.42 |
| C3D | 27.15% | 2.51 |