利用全光谱特种照相取证仪去除指印的背景干扰  

Restrain the Background Interference of Fingermark by Full Spectrum Special Type Photography Forensic Instrument

作　　者：韩琳 张亚恒[1] 姜梅[2] 蔡能斌[1] 

机构地区：[1]上海市公安局物证鉴定中心上海市现场物证重点实验室,上海200083 [2]上海公安高等专科学校,上海200336

出　　处：《影像技术》2013年第6期32-32,33-34,共3页Image Technology

基　　金：公安科技成果推广引导计划项目(2009TGYDSHSJ0010)

摘　　要：目的:研究去除现场指印背景干扰的技术方法。方法:采用全光谱特种照相取证仪的主光源,以10-30度的入射角照射具有背景干扰的现场指印,并结合该设备的滤光系统进行分色照相。结果:显现出亮纹线暗背景的指印图像,指印背景无干扰。结论:采用全光谱特种照相取证仪可以消除指印的背景干扰,为指印显现提供了一种新的设备。Objective： Study on the technology of restraining the background interference of fingermarks. Methods： Using the main light source of the full spectrum special type photography forensic instrument, Illuminate the fingermarks with the incident angle of 10-30 degrees, and combine with color separation photography using the filter system of the equipment. Results： The methods can restrain the background interference of fingermarks, and obtained fingermark images with bright ridges and dark background. Conclusion： The full spectrum special type photography forensic instrument is new equipment for restrain the background interference of fingermarks.

关 键 词：法庭科学 潜在指印 背景干扰 

分 类 号：D918.91[政治法律—法学] O433.4[机械工程—光学工程]