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基于ASIFT的离线签名认证方法

唐有宝 卜巍 张恩泽 邬向前

唐有宝, 卜巍, 张恩泽, 等 . 基于ASIFT的离线签名认证方法[J]. 北京航空航天大学学报, 2015, 41(1): 110-116. doi: 10.13700/j.bh.1001-5965.2014.0453
引用本文: 唐有宝, 卜巍, 张恩泽, 等 . 基于ASIFT的离线签名认证方法[J]. 北京航空航天大学学报, 2015, 41(1): 110-116. doi: 10.13700/j.bh.1001-5965.2014.0453
TANG Youbao, BU Wei, ZHANG Enze, et al. Offline signature verification based on ASIFT[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(1): 110-116. doi: 10.13700/j.bh.1001-5965.2014.0453(in Chinese)
Citation: TANG Youbao, BU Wei, ZHANG Enze, et al. Offline signature verification based on ASIFT[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(1): 110-116. doi: 10.13700/j.bh.1001-5965.2014.0453(in Chinese)

基于ASIFT的离线签名认证方法

doi: 10.13700/j.bh.1001-5965.2014.0453
基金项目: 国家自然科学基金资助项目(61073125,61350004);中央高校基本科研业务费专项资金资助项目(HIT.NSRIF.2013091,HIT.HSS.201407)
详细信息
    作者简介:

    唐有宝(1987-),男,湖南衡阳人,博士生,tangyoubao@hit.edu.cn

    通讯作者:

    卜巍(1977-),男,黑龙江哈尔滨人,讲师,buwei@hit.edu.cn,主要研究方向为图像处理、模式识别、数字艺术设计.

  • 中图分类号: TP391.4

Offline signature verification based on ASIFT

  • 摘要: 通过分析现有局部不变特征方法及含伪装签名数据集的特点,提出了一种基于具有仿射不变性的尺度不变特征变换(ASIFT)的离线签名认证方法.该方法对签名图像进行预处理(包括灰度化和放缩),对处理后的图像进行ASIFT关键点检测和特征描述符提取,对从查询签名图像和参考签名图像中提取到的描述符进行匹配,对匹配的结果采用随机采样一致性(RANSAC)方法去掉错误匹配,并计算正确匹配点的描述符之间的平均距离;通过比较平均距离及正确匹配点的个数与给定阈值的大小来判断认证是否成功.使用了含伪装签名的数据库对提出的方法进行测试,实验结果表明该方法与现有方法相比等误率降低了5%.

     

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出版历程
  • 收稿日期:  2014-04-28
  • 刊出日期:  2015-01-20

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