Principal moments for efficient representation of 2D shape. - João F. P. Crespo; Gustavo A. S. Lopes; Pedro M. Q. Aguiar (ICIP, 2009)

The 2D orientation is unique through principal moments analysis. - João F. P. Crespo; Pedro M. Q. Aguiar (ICIP, 2010)

Revisiting Complex Moments For 2D Shape Representation and Image Normalization - João F. P. Crespo; Pedro M. Q. Aguiar (CoRR, 2010)

Revisiting Complex Moments for 2-D Shape Representation and Image Normalization. - João F. P. Crespo; Pedro M. Q. Aguiar (IEEE Trans. Image Process., 2011)