Automatic identification of bullet signatures based on consecutive matching striae (CMS) criteria

作者：Chu Wei^*; Thompson Robert M; Song John; Vorburger Theodore V

来源：Forensic Science International, 2013, 231(1-3): 137-141.

DOI：10.1016/j.forsciint.2013.04.025

• Forensic science
• Toolmark identification
• Consecutive matching striae (CMS)
• Topography measurement
• Feature profile
• Identification criteria

The consecutive matching striae (CMS) numeric criteria for firearm and toolmark identifications have been widely accepted by forensic examiners, although there have been questions concerning its observer subjectivity and limited statistical support. In this paper, based on signal processing and extraction, a model for the automatic and objective counting of CMS is proposed. The position and shape information of the striae on the bullet land is represented by a feature profile, which is used for determining the CMS number automatically. Rapid counting of CMS number provides a basis for ballistics correlations with large databases and further statistical and probability analysis. Experimental results in this report using bullets fired from ten consecutively manufactured barrels support this developed model. Published by Elsevier Ireland Ltd.

• 出版日期2013-9-10