光学信息隐藏在出入境证件防伪中的应用研究  

Optical Information Encryption Applying into Exit-Entry Documents Security

作　　者：张梅[1] 王雪姣 徐剑澜 ZHANG Mei;WANG Xuejiao;XU Jianlan(Border Control Department, The Chinese People’s Armed Police Forces Academy, Langfang 065000, Heibei, China)

机构地区：[1]中国人民武装警察部队学院边防系,河北廊坊065000

出　　处：《刑事技术》2017年第6期446-450,共5页Forensic Science and Technology

基　　金：武警学院博士科研创新计划项目(No.BSKY201510)

摘　　要：出入境证件中的个人信息隐藏(IPI)技术是一种利用光学信息隐藏的防伪技术。本文概述IPI技术的现状与特点,重点论述信息隐藏技术在出入境证件防伪中的理论和应用。首先,分析样本证件中的隐藏图像,指出其通过打印点(线)的位置、形状以及频率的变化将隐藏信息嵌入到持证人照片中,并从理论上研究信息隐藏的原理和过程;然后阐释两种常见的信息提取方式:透镜解码和软件解码,并且分别用样本证件进行验证。本文最后指出IPI技术在提高出入境证件安全领域的研究趋势。Invisible personal information(IPI),a security technique,has been applied in safeguarding the exit-entry documents integrity through the help of optical information encryption.The status and features of IPI were summarized here,with the focus being placed at the expatiation of the involved theory and relevant application.Firstly,based on the analysis of the encrypted information that is to hide into a sampling identity-recognition certificate,the principle and procedure of information encryption were theoretically illustrated together with the demonstrative embedment of the hiding information into the certificate-holder’s photo via changing the positions,shapes and/or frequencies of the printed dots(or lines).Secondly,two common methods of information decoding were elaborated:one by lens and the other by software,in combination of their respective verification with sampling certificates.Finally,the trend was pointed out for the research to employ in enhancing the security of exit-entry documents.

关 键 词：出入境证件 防伪 个人信息隐藏 嵌入和提取 

分 类 号：DF794.2[政治法律—诉讼法学]