Research Article
Lateral Inhibition in Accumulative Computation and Fuzzy Sets for Human Fall Pattern Recognition in Colour and Infrared Imagery
Table 2
Results of fall detection and fall pattern recognition from a “sitting” position in infrared and colour.
| | | Width to height ratio | Height change | Horizontal velocity | Vertical velocity | Fall direction | Position change | Fall | Fall pattern |
| Fall
Sitting position
Falling backward, Figure 3(f) | 2.99
3.00
2.84
2.63
3.89
4.89 | 1.04
1.05
1.00
0.95
0.97
1.15 | 0.000
0.000
0.000
0.015
0.016
0.022 | 0.000
0.000
0.012
0.015
0.016
0.029 | 0
0
0
0
0
0 | 0
0
0
0
0
0 | 58.0
58.5
56.4
54.5
55.8
64.2 | 4 |
| Fall
Sitting position
Falling to the right, Figure 3(g) | 1.04
1.36
1.43
1.71
2.10
2.26
2.31 | 1.01
1.08
0.90
1.14
1.79
1.83
1.78 | 0.086
0.077
0.000
0.025
0.226
0.177
0.135 | 0.021
0.077
0.045
0.051
0.226
0.249
0.226 | 1
1
1
1
1
1
1 | 0
0
0
0
0
0
0 | 42.1
60.0
53.6
63.1
67.5
67.5
67.5 | 5 |
| Fall
Sitting position
Falling backward, Figure 4(a) | 1.85
2.00
2.15
2.16 | 1.11
1.05
1.25
1.43 | 0.027
0.021
0.058
0.154 | 0.011
0.010
0.047
0.221 | 0
0
0
0 | 0
0
0
0 | 58.05
57.57
55.41
55.33 | 4 |
|
|
