主管：中华人民共和国司法部
主办：司法鉴定科学研究院
ISSN 1671-2072  CN 31-1863/N
中国司法鉴定

中国司法鉴定 ›› 2021 ›› Issue (3): 71-76.DOI: 10.3969/j.issn.1671-2072.2021.03.009

• 鉴定科学 • 上一篇    下一篇

办公扫描机具特征的实验研究

马陈骏1，2，王中阳2，张清华2   

  1. 1.华东政法大学，上海 200042； 2.司法鉴定科学研究院 上海市司法鉴定专业技术服务平台

    司法部司法鉴定重点实验室，上海 200063

  • 收稿日期:2021-01-20 出版日期:2021-07-05 发布日期:2021-05-25
  • 作者简介:马陈骏（1990-），男，工程师，博士研究生，主要从事司法鉴定制度与物证技术学研究。E-mail:daluma2005@163.com

Characterization of Regular Office Scanner

MA Chenjun1,2， WANG Zhongyang2， ZHANG Qinghua2   

  1. 1. East China University of Political Science and Law, Shanghai 200042, China; 2. Shanghai Forensic Service Platform,

     Key Laboratory of Forensic Science, Ministry of Justice, Academy of Forensic Science, Shanghai 200063, China

  • Received:2021-01-20 Published:2021-07-05 Online:2021-05-25

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摘要：

目的 研究扫描打印文件上扫描瑕疵特征及扫描固有特征的价值及应用。方法 通过制作扫描母件、扫描电子文件以及扫描打印文件实验样本，比较上述样本中各扫描瑕疵特征及扫描固有特征之间的异同，分析各类扫描特征的形态表现与应用价值。结果 扫描瑕疵特征易与印刷痕迹特征发生混淆，而扫描固有特征具有较强的特异性，有助于判断待检文件的形成方式。结论 扫描特征中的固有特征能够有效确认待检文件是否存在扫描过程，并为待检文件溯源提供一定参考。

关键词:

扫描机具, 感光元件, 固有特征, 瑕疵特征

Abstract:

Objective To study the various characteristics and its applications of office scanners left on the documents during scanning process. Methods By comparing the similarities and differences of various characteristics from the experimental samples of documents to be scanned, scanning documents and printing documents after scanning, then analyzed the external pattern and application value of the above characteristics. Results The defect features of the scanners are easily to be mixed with the  printing trace features. However the species traceability of inherent characteristics of the scanners are strong. Conclusion The inherent characteristics of the scanners are unique. It is not only an important species characteristics to determine whether the questioned documents to be inspected have been scanned, but also provides a basis for tracing the scanning devices.

Key words:

scanners, image sensor, inherent characteristics, defect characteristics

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