新型喷墨打印篡改文件的识别和可视化关键技术研究

The project aims to identify and visualize the identification and visualization of the new inkjet printing tampering documents at home and abroad, and use the spectrum, mass spectrometry method and imaging technology to realize the identification and visualization of the new inkjet printed tamper file. At present, the research on the new inkjet printed tamperred documents is still in the begining stage at home and abroad . This project is based on the application requirements of forensic science, and uses spectrum technology and mass spectrometry as the research strategy to explore the technical system of identifying and visualizing tamperred files based on new inkjet printing technology and materials. Based on the common tamperred method and the common new type of inkjet printing material, this paper uses the method of spectral analysis and mass spectrometry to study the composition of the new inkjet printing material, and uses the spectral imaging and mass spectrometry technology to identify and visualize the tamperred file. The project aims to deal with the following key issues: to explore the combination of chemical, spectroscopy, computer image processing technology and forensic science and technology, to analyze the components of inkjet printing materials, develope the system research to identify and visualize the tamperred documents and testing the stability and repeatability of the method. The implementation of this project helps to promote multidisciplinary cross research, which helps to deepen the full and systematic study of the temperred inkjet printed documents, and to promote the development in the research of new inkjet printing tamperred documents in forensic science.

本项目在国内外提出新型喷墨打印篡改文件的识别和可视化研究，运用光谱、质谱分析方法和成像技术，实现对新型喷墨打印篡改文件的识别和可视化。目前国内外对新型喷墨打印篡改文件的研究尚处于起步阶段。本项目以法庭科学的应用需求为导向，以光谱技术和质谱技术为研究策略，探索构建基于新型喷墨打印技术和材料的篡改文件的识别和可视化的技术体系。本项目运用光谱分析和质谱分析的方法，研究新型喷墨打印材料的成分，基于常见篡改方法和常见新型喷墨打印材料，运用光谱成像和质谱成像技术对篡改文件进行识别和可视化。本项目着眼于探索将化学、谱学、计算机图像处理技术和法庭科学技术相结合，拟解决喷墨打印材料的成分分析，篡改文件的识别和可视化的系统性研制以及检测分析方法的稳定性和可重复性等关键问题。本项目的实施，有助于推动多学科的交叉研究，有助于深化喷墨打印字迹文本重现的全面、系统的研究，促进法庭科学中新型喷墨打印篡改文件研究的发展。

本项目在国内外提出新型喷墨打印篡改文件的识别和可视化研究，运用光谱、质谱分析方法和成像技术，实现对新型喷墨打印篡改文件的识别和可视化。本项目以法庭科学的应用需求为导向，以光谱技术和质谱技术为研究策略，探索构建基于新型喷墨打印技术和材料的篡改文件的识别和可视化的技术体系。本项目收集了2015年之后国内上市的三大品牌喷墨打印机及其打印样本，运用光谱分析和质谱分析的方法，研究新型喷墨打印墨水中的会挥发性溶剂、染料和颜料、聚合物等成分，基于常见篡改方法和常见新型喷墨打印材料，运用光谱成像和质谱成像技术对涂抹、掩盖等形式篡改文件进行识别和可视化。本项目梳理了喷墨打印的技术参数及打印头特性，还对基于少量打印字迹的打印机溯源进行了研究，溯源准确率达98.13%。本项目着眼于探索将化学、谱学、计算机图像处理技术和法庭科学技术相结合，拟解决喷墨打印材料的成分分析，篡改文件的识别和可视化的系统性研制以及检测分析方法的稳定性和可重复性等关键问题。本项目的完成，有助于推动多学科的交叉研究，有助于深化喷墨打印字迹文本重现的全面、系统的研究，促进法庭科学中新型喷墨打印篡改文件研究的发展。