A direct locality preserving projections (DLPP) algorithm for image recognition
This paper proposes a novel locality preserving projections (LPP) algorithm for image recognition, namely, the direct locality preserving projections (DLPP), which directly optimizes locality preserving criterion on high-dimensional raw images data via simultaneous diagonalization, without any dimensionality reduction preprocessing. Our algorithm is a direct and complete implementation of LPP. Experimental results on the PolyU palmprint database and ORL face database show the effectiveness of the proposed algorithm.
direct locality preserving projections (dlpp) image recognition locality preserving projections (lpp) principal component analysis (pca) linear discriminant analysis (lda)