Graphics Reference
In-Depth Information
Table 4.4
The effect of normalizing coefficient vectors to unit length
Data set
measure
RR
MAP
VR@0.1%FAR
UND
L1
1.00
0.99
0.94
L2
1.00
0.99
0.94
L1 norm*
1.00
1.00
0.99
L2 norm*
1.00
1.00
0.98
GAVAB
L1
0.97
0.91
0.69
L2
0.95
0.90
0.69
L1 norm*
0.97
0.94
0.85
L2 norm*
0.97
0.93
0.84
BU-3DFE
L1
0.99
0.90
0.59
L2
0.99
0.88
0.56
L1 norm*
0.98
0.94
0.80
L2 norm*
0.97
0.93
0.78
*A significant increase of the VR@0.1%FAR is achieved by matching the normalized coefficient vectors.
Table 4.5
Performance measures based on landmarks, contour curves, and coefficient vectors for
single and multiple component fits
Data set
features
model
RR
MAP
VR@0.1%FAR
UND
landmarks
1 comp
0.85
0.86
0.71
landmarks
4 comp
0.90
0.89
0.74
landmarks
7 comp
0.89
0.90
0.77
contours
1 comp
0.95
0.94
0.85
contours
4 comp
0.97
0.92
0.98
contours
7 comp
0.98
0.97
0.92
coefficients
1 comp
0.98
0.98
0.95
coefficients
4 comp
1.00
1.00
0.98
coefficients
7 comp
1.00
1.00
0.99
GAVAB
landmarks
1 comp
0.72
0.73
0.46
landmarks
4 comp
0.60
0.66
0.38
landmarks
7 comp
0.64
0.67
0.43
contours
1 comp
0.91
0.86
0.67
contours
4 comp
0.82
0.79
0.58
contours
7 comp
0.83
0.80
0.59
coefficients
1 comp
0.96
0.93
0.82
coefficients
4 comp
0.98
0.95
0.88
coefficients
7 comp
0.97
0.94
0.85
BU-3DFE
landmarks
1 comp
0.61
0.49
0.27
landmarks
4 comp
0.63
0.50
0.28
landmarks
7 comp
0.66
0.54
0.31
contours
1 comp
0.84
0.66
0.43
contours
4 comp
0.88
0.67
0.43
contours
7 comp
0.88
0.67
0.44
coefficients
1 comp
0.96
0.88
0.73
coefficients
4 comp
0.98
0.92
0.78
coefficients
7 comp
0.98
0.94
0.80
