Robust Face Recognition via Block Sparse Bayesian Learning
Figure 1
Face recognition via BSBL. (a) Recognition with 24 21 downsampled faces as features. The left picture shows a test face image and the downsampled face. The right picture shows the estimated coefficients . The test face belongs to Subject 4, and thus the representation coefficients associated with the downsampled training faces of the subject, that is, , have large values. Two training faces (and their downsampled faces) associated with the two largest coefficients are plotted. The bars near the top and the bottom of the box indicate the blocks in the coefficient vector. (b) The residuals for .
