CROSSING STROKES EXAMINATION FROM CROMATICITY DIAGRAM

Science Heritage Journal

article

Roshan Giri¹  Shanker Prasad Chimouriya²  Bal Ram Ghimire³ 

[1] National Forensic Science Laboratory;Department of Natural Sciences ,(Physics), Kathmandu University;Central Department of Physics, Tribhuvan University

关键词: Crossing Stroke;    Video Spectral Comparator;    Non-Destructive;    Chromaticity;   

DOI  :  10.26480/gws.01.2023.01.08

学科分类：社会科学、人文和艺术（综合）

来源: Zibeline International

【 摘 要 】

It is aimed to find exact chronological order in crossing strokes with the help of chromaticity diagram in this experiment. Since, surface on point of intersection corresponds to second stroke in crossing two lines, it is assumed that chromaticity co-ordinate (x,y) of the crossing stroke should be similar to that of second stroke rather than first stroke. We carried out this experiment on crossing strokes made from differernt writing pens and printers. We did experiment many times by preparing different samples each time in both homogeneous and heterogeneous crossing strokes but we get positive and conclusive results only in most of heterogeneous crossing strokes. This work is very helpful to questioned document examiners to examine forgery in document.

【 授权许可】

CC BY