PCA

1
PCA
2
9x9
5x5
1x1
Bayesian (known pose)
Visionics
9x9
5x5
1x1
Marginal case
PCA
9x9
5x5
1x1
ssd
3
lt P (Ip, Ig ) Probability of similarity between
Ip and Ipgt
Ip, Ig probe and gallery image d Euclidean
distance n number of lattice points
ltPn (?samed i) Probability of ?i given dn at
each lattice pointgt
?isame,different
ltMarginal likelihood of ?igt
?p ,?g pose of probe and gallery image
ltlikelihood of ?i-- Gaussian distribution
N(?n(?i,?p,?g),?n(?i,?p,?g))gt