Infrared Face Recognition Based on DCT and Partial Least Squares - Advances in Image and Graphics Technologies - page 71

Fig. 2. Part of infrared face database

The recognition rate of proposed infrared face recognition method is shown in
Figure 3. It is evident on the Figure 3 that our proposed infrared face recognition
method can reach the highest recognition rate (95.8%) when the number of PLS bases
is 50. The PLS can be used to effectively reduce and discriminate the DCT
coefficients in infrared face images.

100

80

60

40

20

0

0 20 40 60 80 100

PLS bases used

Fig. 3. Recognition rate vs the number of PLS bases used