短波紫外照相在油性指纹检验中的应用——以西藏地区为研究样本  

Application of Short Wave Ultraviolet Photography in Oil Fingerprint Test——Taking Tibet as the Research Sample

作　　者：赵梦霞 谭川 蒋世伟 Zhao Mengxia;Tan Chuan;Jiang Shiwei(Tibet Police Academy,Lhasa,Tibet 850003;Institute of Criminal Science and Technology,Lhasa Public Security Bureau,Lhasa,Tibet 850000)

机构地区：[1]西藏警官高等专科学校,西藏拉萨850003 [2]拉萨市公安局刑事科学技术研究所,西藏拉萨850000

出　　处：《河南司法警官职业学院学报》2020年第2期107-110,共4页Journal of Henan Judicial Police Vocational College

基　　金：西藏警官高等专科学校一般项目“藏区文化背景下油脂指纹无损检验方法探索”(XZJZ201903)的研究成果。

摘　　要：使用普通数码照相机和全波段数码影像系统在分别配置手电筒白光和短波紫外光源的情况下对相同载体上的指印进行照相提取,并全过程记录分析提取结果,获得了两种方法提取载体上潜在指纹的最佳拍摄方法和实验量化条件。研究表明,全波段数码影像系统254nm短波紫外反射照相提取非渗透载体的指纹效果较好,根据平面载体和曲面载体选取不同的拍摄角度能获取完整清晰的指纹。从而为我国西藏地区油性指纹检验提供技术参考。The fingerprint on the same carrier is extracted by ordinary digital camera and full band digital image system respectively equipped with flashlight white light and short wave ultraviolet light source,and the results of the whole process are recorded and analyzed.The best shooting method and experimental quantitative conditions for extracting potential fingerprint on the carrier are obtained by two methods.The results show that the fingerprint of the whole band digital image system can be extracted by 254 nm short wave ultraviolet reflection photography,and the complete and clear fingerprint can be obtained by choosing different shooting angles according to the plane carrier and the curved surface carrier.So as to provide technical reference for oil fingerprint test in Tibet.

关 键 词：254nm短波紫外线 数码照相 油性指纹 

分 类 号：DF794[政治法律—诉讼法学]