Research Article
Lateral Inhibition in Accumulative Computation and Fuzzy Sets for Human Fall Pattern Recognition in Colour and Infrared Imagery
Table 3
Result of fall detection and fall pattern recognition from a “lying” position and results of a false fall detection in infrared.
| | | Width to height ratio | Height change | Horizontal velocity | Vertical velocity | Fall direction | Position change | Fall | Fall pattern |
| Fall
Lying position
Falling backward, Figure 3(h) | 3.03
3.02
3.56
4.14
4.15
4.22 | 1.21
1.12
1.12
1.27
0.98
1.05 | 0.000
0.000
0.816
1.014
0.000
0.000 | 0.182
0.317
0.633
0.713
0.013
0.032 | 1
0
0
0
1
1 | 1
1
1
1
1
1 | 38.6
39.5
67.5
67.5
53.0
58.0 | 7 |
| False fall
Kneeling,
Figure 3(i) | 2.10
1.93
1.95
1.97
2.04
2.27
1.92 | 2.16
2.02
1.00
1.01
1.04
0.78
0.68 | 1.141
1.117
0.602
0.731
0.731
0.423
0.507 | 0.439
0.465
0.200
0.285
0.303
0.141
0.282 | 0
0
0
0
0
1
1 | 0
0
0
0
0
0
0 | 32.5
35.9
33.7
22.4
0.0
0.0
0.0 | |
|
|
