TY - GEN
T1 - Automatic model-order selection for PCA
AU - Sarkis, Michel
AU - Dawy, Zaher
AU - Obermeier, Florian
AU - Diepold, Klaus
PY - 2006
Y1 - 2006
N2 - Determining the model-order of a given data set is an important task in signal analysis. Principal Component Analysis (PCA) can be used for this purpose if there is a criterion upon which the correct order can be chosen. In this work, we propose a new and simple technique to determine automatically the rank of a PCA model. Tested with simulated data, the algorithm is able to determine the correct model order efficiently. Applied to video sequences, this method is able to estimate the necessary subspaces that capture the motion and illuminance changes within the different frames. This helps in reducing the storage need/requirements of video sequences and improves the efficiency of context based search and retrieval techniques.
AB - Determining the model-order of a given data set is an important task in signal analysis. Principal Component Analysis (PCA) can be used for this purpose if there is a criterion upon which the correct order can be chosen. In this work, we propose a new and simple technique to determine automatically the rank of a PCA model. Tested with simulated data, the algorithm is able to determine the correct model order efficiently. Applied to video sequences, this method is able to estimate the necessary subspaces that capture the motion and illuminance changes within the different frames. This helps in reducing the storage need/requirements of video sequences and improves the efficiency of context based search and retrieval techniques.
KW - Data compression
KW - Image coding
KW - Information retrieval
KW - Video signal processing
UR - https://www.scopus.com/pages/publications/78649860751
U2 - 10.1109/ICIP.2006.312628
DO - 10.1109/ICIP.2006.312628
M3 - Conference contribution
AN - SCOPUS:78649860751
SN - 1424404819
SN - 9781424404810
T3 - Proceedings - International Conference on Image Processing, ICIP
SP - 933
EP - 936
BT - 2006 IEEE International Conference on Image Processing, ICIP 2006 - Proceedings
T2 - 2006 IEEE International Conference on Image Processing, ICIP 2006
Y2 - 8 October 2006 through 11 October 2006
ER -