Rotation invariant seal imprint verification method

Author

Matsuura, Takenobu ; Mori, Kazuya

Author_Institution

Dept. of Commun. Eng., Tokai Univ., Hiratsuka, Japan

Volume

3

fYear

2002

fDate

2002

Firstpage

955

Abstract

This paper proposes a rotation invariant seal imprint verification method. First, the magnitude of Zernike moments is calculated after calculation of the center of the normalized seal imprint. Second, a Wiener filter is used to improve the Zernike moments of the seal imprint contaminated with noise. Third, the discrete cosine transform (DCT) of the autocorrelation of the output sequence of the Wiener filter is computed. Then, the seal imprint can be verified using the discrete K-L expansion of the DCT. Finally the verification experiments are given to show the effectiveness of our method.

Keywords

Wiener filters; correlation methods; discrete cosine transforms; feature extraction; filtering theory; image recognition; DCT; Wiener filter; Zernike moments calculation; autocorrelation; discrete K-L expansion; discrete cosine transform; logos; output sequence; pattern recognition; rotation invariant seal imprint verification method; trademarks; Asia; Autocorrelation; Discrete cosine transforms; Equations; Magnetooptic recording; Quantization; Seals; Shape; Skeleton; Wiener filter;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Circuits and Systems, 2002. 9th International Conference on

Print_ISBN

0-7803-7596-3

Type

conf

DOI

10.1109/ICECS.2002.1046407

Filename

1046407