적외선-편광효과를 이용한 위조문서 판독

초록

This study uses infrared-polarization technology to read questioned documents that use two or more writing instruments. In order to maximize the effect of polarization phenomenon, we propose a new shooting method. This method adjusts the incident angle of the light source to +55° and the camera angle to -55° based on the target. As a result of the experiment, we could distinguish the writing instrument ‘s response more finely than the conventional method.

키워드