Asicioglu F, Yilmaz AS, Kinder JD, Pekacar I, Gelir A. Technical note: A novel 3D scan-based optical method for analyzing lines drawn at different pen pressure.
Forensic Sci Int 2022;
338:111388. [PMID:
35907278 DOI:
10.1016/j.forsciint.2022.111388]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 07/05/2022] [Accepted: 07/11/2022] [Indexed: 11/16/2022]
Abstract
Pen pressure is one of the important elements of handwriting and questioned document analysis which is also crucial to recognize forgery. In this paper, we present a new, non-contact, non-destructive, and relatively inexpensive technique to measure the width of the grooves made by the writing. Results demonstrate a clear difference in measured groove widths for varying pen pressure. The effect of passing a written or signed paper in different types of printers has also been studied. A clear decrease of the groove depth was noted when passing the document through a laser printer. An ink jet printer only resulted in a small decrease of the groove depth, while no effect could be detected from a dot matrix printer.
Collapse