论文部分内容阅读
目的:本文的研究目的就是为了更好的去除现场指印背景干扰的相关技术方法。方法:我们的主光源采用全光谱特种照相取证仪的光源,其入射的角度我们采用10-30度,对现场的指印进行去背景干扰,然后结合设备上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。我们使用此种设备,可以将指印的背景干扰进行消除,是现在指印消除的新型设备之一。
Purpose: The purpose of this study is to provide a better technique for removing background fingerprints in the field. Method: Our main light source uses a full-spectrum special photographic evidence of the light source, its angle of incidence we use 10-30 degrees, the background fingerprint to the background interference, and then combined with the device on the filter system for color separation photography. Results: A fingerprint image showing a dark background with bright lines and no interference with the fingerprint background. We use this type of device, which removes the background noise from fingerprints and is one of the new devices that now eliminate fingerprints.