On the face recognition with orthogonal bidirectional discriminant supervised projection

By combining the discriminant supervised LPP with the orthogonal bidirectional projection, an orthogonal bidirectional discriminant supervised LPP (OBDSLPP), was proposed in which the left and right projection matrices for OBDSLPP are orthogonal. In this algorithm, to get the matrices, one trace ratio optimization problem are required to be solved. Experimental results show that the proposed OBDSLPP achieve more higher recognition accuracy than 2DDLPP, 2DDSLPP and BDLPP, respectively.