反射变换成像技术在打印变造文件中的应用  

Application of Reflection Transform Imaging in Printing and Changing Files

作　　者：吴晓 林红[1] WU Xiao;LIN Hong(Criminal Investigation Police University of China, Shenyang, Liaoning 110035)

机构地区：[1]中国刑事警察学院,辽宁沈阳110035

出　　处：《科教导刊》2018年第8期53-54,123,共3页The Guide Of Science & Education

摘　　要：在文件检验工作中,检验人员时常会遇到鉴别打印变造文件这类案件。关于打印变造文件类案件中有一类特殊案件,即在已经签名的纸张背面重新打印修改过的内容,伪造出一份新的文件,这就涉及到打印内容与签名的时序问题,检验人员对判断是先打印后签名还是先签名后打印的时序问题难以下结论,这是因为传统方法难以将文件背面笔迹压痕与打印文字交错部位的细节特征清晰呈现出来,本文将利用反射变换成像(Reflectance Transformation Imaging,简称RTI)技术来显现笔迹压痕与打印文字交错部位的细节特征,此方法可有效提高清晰度,将特征的三位形态清晰显现。In the document inspection work, the inspector often meets the case of identifying the printing and changing documents. There is a kind of special cases about print forged document cases, i.e. changes in the back has signed paper to print the contents, forge a new document, which relates to the content and timing issues printed signature, inspection personnel to determine the first printed signature is the signature print timing problem to the conclusion, this is because it is difficult for the traditional method of file and print text goes back indentation handwriting parts of the details clearly presented, this paper will use reflection transform imaging（Reflectance Transformation Imaging, referred to as RTI） technology to show the details and features of handwriting indentation print text staggered position, this method can effectively improve the clarity of the three morphological features clear.

关 键 词：文件检验 反射变换成像 添加打印变造文件 笔迹压痕 

分 类 号：D918.92[政治法律—法学]