The Scientific World Journal

Research Article

Lateral Inhibition in Accumulative Computation and Fuzzy Sets for Human Fall Pattern Recognition in Colour and Infrared Imagery

Table 1

Results of fall detection and fall pattern recognition from a “standing” position in infrared and colour.
 Width to height ratioHeight changeHorizontal velocityVertical velocityFall directionPosition changeFallFall pattern
Static fall
Standing position
Falling backward, Figure 3(a)		1.14
1.44
1.75		1.31
1.25
1.40		0.055
0.071
0.087		0.583
0.571
0.610		0
0
0		0
1
0		67.5
67.5
67.5		1
Static fall
Standing position
Falling forward, Figure 3(b)		1.19
1.32
1.43
1.53
1.68		1.02
1.21
1.12
1.12
1.07		0.215
0.000
0.000
0.037
0.560		0.914
0.177
0.322
0.560
0.560		0
1
0
0
0		0
0
1
1
0		65.4
38.6
39.5
35.8
67.5		1
Static fall
Standing position
Falling to the left, Figure 3(c)		1.50
2.54
2.95
3.27
2.93
3.31
3.38
4.53		1.73
1.16
1.18
1.08
1.34
1.46
1.62
1.00		0.024
0.544
0.550
0.847
0.544
0.544
0.544
0.000		0.332
0.072
0.084
0.096
0.151
0.163
0.181
0.000		0
0
0
0
0
0
0
1		0
0
0
0
0
0
0
0		67.5
66.4
67.5
53.6
67.5
67.5
67.5
67.5		3
Dynamic fall
Standing position
Falling forward, Figure 3(d)		1.12
1.21
1.97
2.4		1.63
1.95
1.23
1.67		0.130
0.134
0.000
0.000		0.130
0.134
0.000
0.215		0
0
0
0		0
0
1
0		51.3
67.5
67.5
67.5		1
Dynamic fall
Standing position
Falling to the left, Figure 3(e)		1.33
2.06
2.73
2.71
2.72
2.72		1.42
1.97
1.83
1.83
1.81
1.81		0.281
0.391
0.407
0.317
0.328
0.340		0.187
0.391
0.407
0.317
0.328
0.340		0
0
0
0
0
0		0
0
0
0
0
0		43.5
67.5
67.5
67.5
67.5
67.5		3
Static fall
Standing position
Falling backward, Figure 4(b)		1.16
1.55
1.78		1.21
1.21
1.44		0.049
0.081
0.078		0.565
0.600
0.625		0
0
0		0
1
0		63.5
67.5
67.5		1
Static fall
Standing position
Falling backward, Figure 4(c)		1.30
1.85
1.88		1.40
1.90
1.49		0.222
0.335
0.152		0.177
0.401
0.656		0
0
0		0
0
0		48.5
62.7
67.5		3
Dynamic fall
Standing position
Falling to the right, Figure 4(d)		1.11
1.33
2.03
2.15		1.60
1.95
1.30
1.58		0.131
0.134
0
0		0.125
0.134
0
0.185		0
0
0
0		0
0
1
0		50.7
67.5
67.5
67.5		2
Dynamic fall
Standing position
Falling forward, Figure 4(e)		1.18
1.45
1.88		1.58
1.79
1.60		0.125
0.140
0.125		0.127
0.134
0.098		0
0
0		0
0
1		53.5
67.5
67.5		1