[1] CHEN Y S. Automatic identification for a Chinese seal image[J]. Pattern Recognition, 1996,29(11):1807-1820.
[2] CHANG S H, CHENG F H, HSU W H. Automatic seal identification by using point matching and fake detection[J]. Pattern Recognition Letters, 1999,20(14):1545-1552.
[3] LIU H, LU Y, WU Q, et al.. Automatic seal image retrieval method by using shape features of chinese characters[C]. Systems, Man and Cybernetics, ISIC IEEE International Conference on 7-10 Oct. USA: IEEE, 2007:2871-2876.
[4] HU Q, YANG J Y, ZHANG Q, et al.. An automatic seal imprint verification approach[J]. Pattern Recognition, 1995,28(8):1251-1266.
[5] AI W, PENG L,LI L L. Preprocessing and registration algorithm for check seal verification[J]. Computer Engineering and Applications, 2003,39(3):34-37.(in Chinese)
[6] YANG X J, WANG ZH Q, LIU W Y, et al.. Seal imprint recognition based on ring-projecting template matching[J]. Journal of Optoelectronics·Laser,2001,12(11):1177-1181.(in Chinese)
[7] LOU ZH, HU ZH SH, YANG J Y. Applications of image processing and recognition technology in an automatic bankcheck processing system[J]. Journal of Nanjing University of Science and Technology, 1999,23(3):273-277.(in Chinese)
[8] ZHOU K, ZHANG D L. Image processing technology in seal imprint verification[J]. Computer Engineering and Applications, 2002,38(20):218-220.(in Chinese)
[9] CHEN L J, LIU T G, CHEN J J,et al.. Identification of seal imprint based on center-rays model and its application[J]. Optical Technique, 2006,32(4):511-513,517.(in Chinese)
[10] XU X T. Research on the algorithm of automatic seal identification system[D]. Chongqing: Chongqing University, 2004.(in Chinese)
[11] WANG S. Research on registration algorithm for check seal verification[J]. SPIE, 2007,6833: 68330Y-1-8.
[12] LIU CH Q, ZENG D W, WANG F D. Registration method of seal imprint identification[J]. Journal of Shanghai Jiaotong University, 1998,32(9):46-48.(in Chinese)
[13] ZHU J CH. Research on recognition method for verification of circle seal stamped on finance note[D]. Tianjin: Tianjin University, 2007.(in Chinese)
[14] LIN Y CH, CUI Y P, HUANG Y G. Study on edge detection and target recognition in complex background[J]. Opt. Precision Eng., 2006,14(3):510-514. (in Chinese)