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Computer-Assisted Facial Image Identification System, Tables 1-5, by Yoshino, Matsuda, Kubota, Imaizumi, and Miyasaka (Forensic Science Communications, January 2001)

Computer-Assisted Facial Image Identification System, Tables 1-5, by Yoshino, Matsuda, Kubota, Imaizumi, and Miyasaka (Forensic Science Communications, January 2001)
 
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Forensic Science Communications January 2001 — Volume 3 — Number 1


Red bar graphic Tables 1 – 5

Computer-Assisted Facial Image Identification System
Mineo Yoshino, Hideaki Matsuda, Satoshi Kubota,
Kazuhiko Imaizumi
, and Sachio Miyasaka

Table 1. Anthropometrical Data for the 3D and 2D
Facial Images in Figure 4
Anthropometric
points
Reference
numbers
Distance
(mm)
Anthropometric
points
Reference
numbers
Angle (degree)
3D2D3D2D

al-al

5-6

38.4

38.4

al-sto-al

5-8-6

63.0

62.9

ch-ch

9-10

39.1

38.5

al-gn-al

5-15-6

28.7

28.3

sn-gn

7-15

67.0

66.5

ch-sn-ch

9-7-10

73.9

77.7

sto-gn

8-15

45.3

45.7

ch-gn-ch

9-15-10

48.1

46.2

go-sba

13-17

151.7  

149.1 

go-gn-sba

13-15-17

90.1

88.2


al = alare; sto = stomion; ch = cheilion; gn = gnathion; sn = subnasale; go = gonion; and sba = subaurale.

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Table 2. Reciprocal Point-to-Point Difference Between the
3D and 2D Facial Images in Figure 6
Anthropometric
point
Reference
number
Distance
(mm)
Anthropometric
point
Reference
number
Distance
(mm) 
r-en 1 2.0 r-ch 9 0.9
l-en 2 0.9 l-ch 10 1.3
r-ex 3 3.2 r-zy 11 2.5
l-ex 4 1.4 r-go 13 0.6
r-al 5 1.4 gn 15 1.8
l-al 6 1.8 l-sa 16 3.8
sn 7* 0 l-sba 17 3.4
sto 8 2.0 l-t 18 3.6

 

Mean = 1.9; SD = 1.1; Min = 0; and Max = 3.8. r-en = right entocanthion;
r-ch = right cheilion; l-en = left entocanthion; l-ch = left cheilion; r-ex = right ectocanthion; r-zy = right zygion; l-ex = left ectocanthion; r-go = right gonion; r-al = right alare; gn = gnathion; l-al = left alare; l-sa = left superaurale; sn = subnasale; l-sba = left subaurale; sto = stomion; l-t = left tragion. * = standard.

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Table 3. Descriptive Statistics for the Average Distance of the
Reciprocal Points Between the 3D and 2D
Facial Images of the Same Person (N = 25)


E


n


Mean


SD
Distance (mm)

E


n


Mean


SD
Distance
(mm)
MinMaxMinMax
1 10 2.0 0.3 1.5 2.6 14 10 2.4 0.2 2.0 2.8
2 10 2.1 0.3 1.9 2.6 15 10 2.6 0.2 2.3 2.8
3 10 2.5 0.2 2.2 3.0 16 10 2.3 0.3 1.8 2.7
4 10 2.4 0.3 2.4 3.0 17 10 2.5 0.2 2.3 2.9
5 10 2.6 0.3 1.9 3.0 18 10 2.2 0.3 1.5 2.6
6 10 2.2 0.2 2.0 2.6 19 10 2.5 0.3 1.9 3.0
7 10 2.1 0.3 1.7 2.8 20 10 2.6 0.3 2.2 3.1
8 10 2.6 0.3 2.3 3.3 21 10 2.2 0.2 1.9 2.4
9 10 2.3 0.2 1.8 2.6 22 10 2.1 0.2 1.8 2.5
10 10 2.1 0.3 1.5 2.4 23 10 2.4 0.2 1.9 2.7
11 10 2.7 0.2 2.2 3.0 24 10 2.4 0.3 2.0 2.8
12 10 2.3 0.5 1.7 1.7 25 10 1.9 0.3 1.4 2.3
13 10 2.5 0.5 3.1 3.1            


E = examinee.

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Table 4. Descriptive Statistics for the Average Distance of the
Reciprocal Points Between the 3D and 2D
Facial Images in the Same and Different Persons

Superimposition
Image


n


Mean


SD
Distance (mm)
MinMax
Same person 250 2.3 0.4 1.4 3.3
Different person 600 4.7 1.0 2.6 7.0

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Table 5. Assessment of the Propriety of the Threshold for
Identifying the 2D and 3D Facial Images
(Target: Examinee 2)

Examinee
Average
distance

Examinee
Average
distance
1 3.6 14 5.8
2 2.2 15 4.5
3 4.1 16 4.3
4 4.6 17 4.6
5 3.1 18 3.7
6 3.6 19 3.0
7 4.2 20 3.6
8 5.0 21 4.3
9 5.8 22 3.6
10 4.0 23 4.3
11 4.2 24 4.5
12 4.1 25 3.9
13 4.1    


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  Forensic Science Communications January 2001 — Volume 3 — Number 1