Table 8 The classification results for different sequences containing possible type of usual and unusual indoor activities using a single camera
From: Context-aware visual analysis of elderly activity in a cluttered home environment
Category | Name | Ground truth | # Of sequences | # Of correct classifications |
|---|---|---|---|---|
Backward fall | Ending sitting | Positive | 4 | 3 |
| Â | Ending lying | Positive | 4 | 4 |
| Â | Ending in lateral position | Positive | 3 | 3 |
| Â | With recovery | Negative | 4 | 4 |
Forward fall | On the knees | Negative | 6 | 6 |
| Â | Ending lying flat | Positive | 11 | 11 |
| Â | With recovery | Negative | 5 | 5 |
Lateral fall | Ending lying flat | Positive | 13 | 12 |
| Â | With recovery | Negative | 1 | 1 |
Fall from a chair | Ending lying flat | Positive | 8 | 8 |
Syncope | Vertical slipping and finishing in sitting | Negative | 2 | 2 |
| Â | To sit down on chair and stand up | Negative | 4 | 4 |
| Â | To lie down then to rise up | Negative | 2 | 0 |
Neutral | To walk around | Negative | 1 | 1 |
| Â | To bend down then rise up | Negative | 2 | 1 |
| Â | To couch or sneeze | Negative | 3 | 3 |