Seal imprint verification with rotation invariance

• DOI: 10.1109/apccas.2004.1412833
• Publication Date: 2005-04-12T10:25:58Z
• Authors: T. Matsuura; K. Yamazaki
• Keywords: 0102 computer and information sciences; 01 natural sciences

This work discusses on a seal imprint verification method with rotation invariance. The rotation invariant feature is represented here by the coefficients of 2D Fourier series expansion of the log-polar image. Seal imprint can be verified by the eigen vector corresponding to the largest eigen value of a matrix defined in terms of the above Fourier coefficients. The seal imprint verification experiments are given to show the effectiveness of the proposed method.