摘要
目的研究镜面客体上潜在指印的偏振光照相显现方法。方法用偏振光照相分别对普通镜面和CD盘上的油脂指纹、灰尘指印进行显现。结果显现指纹清晰,通过与定向反射、暗视场照相方法进行比较,偏振光照相效果明显好于其他光学方法。结论偏振光照相可以有效地增加指印纹线与背景的亮度反差,消除物体背景干扰。
Objective To explore a method to develop latent fingerprint on mirrory surface. Method Polarization photography was used to develop latent fingerprint on mirrory surface. Result To compare with the directional reflection photography and dark-field photography, polarization photography is better than the other methods. Conclusion Polarization photography can effectively increases the contrast and eliminates interference function of the object background.
出处
《刑事技术》
2007年第1期7-8,共2页
Forensic Science and Technology
关键词
偏振光照相
镜面客体
指印
polarization photography
mirror objective
fingerprint
