TY - GEN
T1 - Separable PCA for image classification
AU - Xi, Yongxin Taylor
AU - Ramadge, Peter J.
PY - 2009
Y1 - 2009
N2 - As an alternative to standard PCA, matrix-based image dimensionality reduction methods have recently been proposed and have gained attention due to reported computational ef-ficiency and robust performance in classification. We unify all of these methods through one concept: Separable Principle Component Analysis (SPCA).We show that the proposed matrix methods are either equivalent to, special cases of, or approximations to SPCA. We include performance comparisons of the methods on two face data sets and a handwritten digit data set. The empirical results indicate that two existing methods, BD-PCA and its variant NGLRAM, are very good, efficiently computable, approximate solutions to practical SPCA problems.
AB - As an alternative to standard PCA, matrix-based image dimensionality reduction methods have recently been proposed and have gained attention due to reported computational ef-ficiency and robust performance in classification. We unify all of these methods through one concept: Separable Principle Component Analysis (SPCA).We show that the proposed matrix methods are either equivalent to, special cases of, or approximations to SPCA. We include performance comparisons of the methods on two face data sets and a handwritten digit data set. The empirical results indicate that two existing methods, BD-PCA and its variant NGLRAM, are very good, efficiently computable, approximate solutions to practical SPCA problems.
KW - Discrete transforms
KW - Eigenvalues and eigenfunctions
KW - Face recognition
KW - Image classification
KW - Image representations
UR - http://www.scopus.com/inward/record.url?scp=70349216500&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=70349216500&partnerID=8YFLogxK
U2 - 10.1109/ICASSP.2009.4959956
DO - 10.1109/ICASSP.2009.4959956
M3 - Conference contribution
AN - SCOPUS:70349216500
SN - 9781424423545
T3 - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
SP - 1805
EP - 1808
BT - 2009 IEEE International Conference on Acoustics, Speech, and Signal Processing - Proceedings, ICASSP 2009
T2 - 2009 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2009
Y2 - 19 April 2009 through 24 April 2009
ER -