| 纸上静态签名笔迹动态特征的提取和分析 |
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| 引用本文： | 陈晓红,贾玉文,杨旭,徐彻,崔岚,卞新伟,罗仪文.纸上静态签名笔迹动态特征的提取和分析[J].中国司法鉴定,2012(4):28-30,36. |
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| 作者姓名： | 陈晓红 贾玉文 杨旭 徐彻 崔岚 卞新伟 罗仪文 |
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| 作者单位： | 1. 司法部司法鉴定科学技术研究所,上海市法医学重点实验室,上海200063
2. 中国刑事警察学院,文件检验鉴定公安部重点实验室,沈阳100035 |
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| 基金项目： | 司法部司法鉴定科学技术研究所基金资助(2009-1);公安部应用创新项目基金资助(2005YYXXJXY040) |
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| 摘 要： | 目的建立一种新型的定量化签名笔迹鉴别技术。方法建立签名笔迹样本库，导入计算机后，提取签名笔迹的宽度，灰度和弧度等动态特征数据，进行时间归整后，比较签名动态特征之间的相关系数及其规律。结果同一人签名的动态特征之间相关系数高，而与代签签名、临摹签名和套摹签名均有显著差异。结论本研究开发和建立了一整套检测、提取和分析纸上签名笔迹动态特征的工具和方法，该方法能有效鉴别本人签名和非本人签名。
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| 关 键 词： | 静态 签名笔迹 宽度 灰度 弧度 |
Extraction and Analysis of dynamic features of Static Signature on Paper |
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| CHEN Xiao-hong
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JIA Yu-wen
,
YANG Xu
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XU Che
,
Cui Lan
,
Bian Xin-wei
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Luo Yi-wen.Extraction and Analysis of dynamic features of Static Signature on Paper[J].Chinese Journal of Forensic Sciences,2012(4):28-30,36. |
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| Authors: | CHEN Xiao-hong JIA Yu-wen YANG Xu XU Che Cui Lan Bian Xin-wei Luo Yi-wen |
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| Institution: | 1 (1.Shanghai Key Laboratory of Forensic Medicine,Institute of Forensic Science,Ministry of Justice,Shanghai,200063,China; 2.Key Laboratory of the Questioned Document Identification,Ministry of Public Security of China,China Criminal Police University,Shenyang,100035,China) |
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| Abstract: | Objective To establish a novel method to identify signatures quantitatively. Method A signatures dataset was es- tablished. Signatures on paper were imported into the computer, and the dynamic data of strokes＇ width,grayseale and radian of signatures were extracted. After dynamic time warping, the correlation coefficients between the dynamic data of signatures were studied to find out the regularities. Results The correlation coefficients between the dynamic data of signatures of one person were the highest, and they were significantly different from those of imitative signatures written by others. Conclusion The pre- sent study developed an entire system of extracting, analyzing and examining the dynamic features of signatures on paper, which could distinguish original signatures from forgery ones effectively. |
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| Keywords: | static signature width grayscale radian |
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