关键词: 文件检验, 签名鉴定, 笔压特征, 量化检验, 分析系统

Abstract: Objective To analyze pen pressure characteristics fast and accurately in signature examination，and realize correlation examination between signatures on paper and digital signatures. Methods A static signature pen pressure characteristic analysis system was developed，which enables the visualization analysis of pen pressure in signatures on paper. Moreover，a dynamic signature pen pressure characteristic analysis system was developed for the quantitative  analysis of pen pressure in digital signatures. Results The two systems allowed the examiners to perform visualization analysis of pen pressure in black gel pen signatures and quantitative examination of pen pressure in digital signatures. A related examination of pen pressure in both types of signatures was achieved，improving the accuracy of signature identification. Conclusion The static and dynamic signature pen pressure characteristic analysis system can assist in the quantitative analysis of pen pressure in signatures.

Key words: forensic document examination, signature identification, pen pressure, quantitative examination, analysis system