Forensic Differentiation of Copy Paper by Image Processing Techniques of Video Fluorescence Spectroscopy

CHEN Wei-na; YANG Chun-song; YANG Xu

doi:10.3788/fgxb20183905.0713

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Forensic Differentiation of Copy Paper by Image Processing Techniques of Video Fluorescence Spectroscopy

更新时间：2020-08-12

- Forensic Differentiation of Copy Paper by Image Processing Techniques of Video Fluorescence Spectroscopy
- Chinese Journal of Luminescence Vol. 39, Issue 5, Pages: 713-722(2018)
- 作者机构：
  
  1. 中国人民公安大学, 北京 100038
  2. 北京华夏物证鉴定中心, 北京 100089
  3. 司法部司法鉴定科学技术研究所, 上海 200042
- 作者简介：
- 基金信息：
  
  Supported by The 13th Five-Year Plan for National Key Research and Development (2016
- DOI：10.3788/fgxb20183905.0713
  CLC： O521
- Received：15 August 2017，
  
  Revised：24 November 2017，
  
  Published Online：27 November 2017，
  
  Published：05 May 2018
- 稿件说明：
移动端阅览
陈维娜, 杨春松, 杨旭. 视频荧光光谱图像技术鉴别复印纸[J]. 发光学报, 2018,39(5): 713-722

CHEN Wei-na, YANG Chun-song, YANG Xu. Forensic Differentiation of Copy Paper by Image Processing Techniques of Video Fluorescence Spectroscopy[J]. Chinese Journal of Luminescence, 2018,39(5): 713-722
陈维娜, 杨春松, 杨旭. 视频荧光光谱图像技术鉴别复印纸[J]. 发光学报, 2018,39(5): 713-722 DOI： 10.3788/fgxb20183905.0713.

CHEN Wei-na, YANG Chun-song, YANG Xu. Forensic Differentiation of Copy Paper by Image Processing Techniques of Video Fluorescence Spectroscopy[J]. Chinese Journal of Luminescence, 2018,39(5): 713-722 DOI： 10.3788/fgxb20183905.0713.

摘要

为建立使用视频荧光光谱图像技术检验不同品牌、型号复印纸的分析方法，实现对复印纸的检验和鉴别，收集了不同品牌和型号的静电复印纸20种，利用VSC6000视频光谱比较仪对其进行检验，获得样本的荧光图像，结合图像处理技术对荧光形态、荧光强度等进行可视化和量化分析。依据紫外光、强光源工作条件下纸张样品的视频荧光现象的形态学特征可对纸张进行初步鉴别；通过绘制视频荧光图像的等高线分布图可实现对纸张样品的可视化分析；计算荧光图像亮度值

可对纸张样品进行量化检验。研究结果表明，视频荧光光谱图像技术能够对复印纸进行准确、有效的检验，该方法适用于文件物质材料检验，为纸张的鉴别、比对和同一认定提供了一种实用方法。

Abstract

In order to establish a method to examine copy paper in different brand

model by image processing techniques of video fluorescence spectroscopy (VFS) and inspect and identify copy paper in forensic science

20 kinds of copy paper in different brands and models were collected

the video spectral comparator (VSC6000) was used to analyze these papers to obtain the fluorescence image of the samples. Combining with the image processing technology

the morphology and the intensity of the fluorescence were analysised visually and quantitatively. According to the morphological features in the VFS obtained by UV-365 nm and powerful light source (400-570 nm) of the samples

the papers can be identified preliminarily. The visual analysis of the samples can be realized by drawing the contour map of video fluorescence image

and the fluorescence image brightness value

can be used to quantify the samples. The results prove that the image processing techniques of VFS can discriminate the copy paper precisely and effectively

which can be used to examine the document material

provide a practical method for the differentiation

comparison

identification in forensic science.

关键词

Keywords

references

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