Testing recognition with cropped class images

1. The Average Face and Eigenfaces

Building eigenfaces by using the following command:
C:>main --eigenfaces <p> <width> <height> <textfile image list> <outfile for eigenfaces>
ex. main --eigenfaces 10 25 25 nonsmiling_cropped/list.txt eigenfaces

The resulting eigenfaces are as follows:
Average Face:

Eigenfaces 0-9:

2. Building a userbase

C:>main --constructuserbase <eigenfaces filename> <textfile image list> <database output filename>
ex. main --constuctuserbase eigenfaces nonsmiling_cropped/list.txt userbase

3. Recognizing faces

# of eigenfaces# of faces recognized
13
314
513
716
916
1121
1321
1521
1721
1925
2123
2324
2524
2724
2924
3124
3323


Discussions

From the above, we found that the recognizing power seems to reach saturation after you use enough eigenfaces.
If you use more eigenfaces, not only the recognition process would take longer, the space for storing eigenfaces also increases. In the above case, I would choose a user database with 19 eigenfaces.

In the recognizing face part, I checked hahn.tga. Here are some of the results:
Loaded faces from 'eig21.face'
Loaded users from 'base21.user'
Face 'hahn.tga' recognized as being closest too:
0: nonsmiling_cropped/eckart; MSE: 14258.3
1: nonsmiling_cropped/richardson; MSE: 15639.8
2: nonsmiling_cropped/gauthier; MSE: 16676
3: nonsmiling_cropped/moe; MSE: 17719.4
4: nonsmiling_cropped/hazen; MSE: 21318
5: nonsmiling_cropped/li; MSE: 23292.9
6: nonsmiling_cropped/simon; MSE: 24399.3
7: nonsmiling_cropped/lester; MSE: 27390.5
8: nonsmiling_cropped/hoyt; MSE: 27562.5
9: nonsmiling_cropped/treuille; MSE: 27755.5
10: nonsmiling_cropped/zhou; MSE: 28317.2
11: nonsmiling_cropped/mcnew; MSE: 29653.2
12: nonsmiling_cropped/mullen; MSE: 29841.6
13: nonsmiling_cropped/shon; MSE: 29851.4
14: nonsmiling_cropped/zhang; MSE: 29873.9
15: nonsmiling_cropped/lane; MSE: 30833.5
16: nonsmiling_cropped/hasselrot; MSE: 33357.7
17: nonsmiling_cropped/stewart; MSE: 43484.7
18: nonsmiling_cropped/nowak; MSE: 46913.3
19: nonsmiling_cropped/ko; MSE: 52211.7
20: nonsmiling_cropped/hahn; MSE: 61184.1

Loaded faces from 'eig25.face'
Loaded users from 'base25.user'
Face 'hahn.tga' recognized as being closest too:
0: nonsmiling_cropped/eckart; MSE: 20067.1
1: nonsmiling_cropped/gauthier; MSE: 22337.7
2: nonsmiling_cropped/richardson; MSE: 22746.4
3: nonsmiling_cropped/moe; MSE: 24387.8
4: nonsmiling_cropped/li; MSE: 27895.8
5: nonsmiling_cropped/simon; MSE: 28825.2
6: nonsmiling_cropped/mcnew; MSE: 30589.5
7: nonsmiling_cropped/lester; MSE: 31337.8
8: nonsmiling_cropped/hoyt; MSE: 31482.3
9: nonsmiling_cropped/treuille; MSE: 31496.1
10: nonsmiling_cropped/zhou; MSE: 32116.2
11: nonsmiling_cropped/mullen; MSE: 33396.7
12: nonsmiling_cropped/zhang; MSE: 33423.8
13: nonsmiling_cropped/hazen; MSE: 34109.5
14: nonsmiling_cropped/lane; MSE: 34229.9
15: nonsmiling_cropped/shon; MSE: 44057.4
16: nonsmiling_cropped/stewart; MSE: 44856.9
17: nonsmiling_cropped/nowak; MSE: 47737
18: nonsmiling_cropped/hahn; MSE: 52144
19: nonsmiling_cropped/ko; MSE: 52187.6
20: nonsmiling_cropped/huang2; MSE: 59774.9
21: nonsmiling_cropped/hasselrot; MSE: 60503.2
22: nonsmiling_cropped/downey; MSE: 60944.9
23: nonsmiling_cropped/su; MSE: 62364.5
24: nonsmiling_cropped/mcnamara; MSE: 66183.3
From the result, you can easily tell. It does not appear highly in the sorted results. It is hardly recognized by the system.

Cropping and finding faces

Aseem's Face

c:>main --findface aseem.tga test 0.3 0.7 0.05 mark 1 victor_mark.tga


c:>main --findface aseem.tga test 0.45 0.55 0.01 crop 1 aseem_crop.tga

My Face

c:>main --findface victor.tga test 0.3 0.7 0.05 mark 1 victor_mark.tga


c:>main --findface victor.tga test 0.3 0.7 0.05 crop 1 victor_mark.tga

Faces in group pictures

c:>main --findface group1.tga test 0.9 0.9 0.1 mark 1 group1_mark.tga


c:>main --findface group2.tga test 1 1.3 0.05 mark 6 group2_mark.tga