[1] K Ueda,Y Nakamura.Automatic verification of seal impression pattern[C].Proc.7th Inter Conf.Pattern Recognition(ICPR),1984,2:1019-1021

[2] Fan T J,Tsai W H.Automatic Chinese seal identification[J].Computer Vision Graphics and Image Processing,1984,25(3):311-330

[3] C M Chen,W H Tsai.Automatic identification of Chinese seal imprint with arbitrary or partial shapes[J].Comput.Process.Chinese Oriental Languages,1986,2:216-233

[4] S Lee,J.H.Kim.Unconstrained seal imprint verification using attributed stroke graph matching[J].Pattern Recognition,1989,22(6):653-664

[5] Liu Tiegen.Embedded technology for image detection[M].Beijing:China Machine Press,2008,278-307

[6] Law of the People's Republic of China on Negotiable Instruments[M].Bejing:China Legal Publishing House,2001:42-49

[7] Ai Wu,Peng Lei,Li Lingling et al..Preprocessing and registration algorithm for check seal verification[J].Computer Engineering and Applications,2003,39(3):34-37

[8] Zhou Kun,Zhang Dali.Image processing technology in seal imprint verification[J].Computer Engineering and Applications,2002,38(20):218-220

[9] Agarwal Pankaj K,Har-Peled,Sariel et al..Hausdorff distance under translation for points and balls[J].Proceeding of the Annual Symposium on Computational Geometry,2003,282-291

[10] Chati,H.D.Muhlbamer,F.et al..SOPC architecture for a key point detector[C].2007 International Conference on Field Programmable Logic and Applications,FPL 2007,2007,710-73