Close Non-Matches and Database Searches
This presentation is from the 77th Annual Conference of the American Academy of Forensic Sciences (AAFS), Baltimore, Maryland, February 17-22, 2025.f
Quantitative Similarity Assessments of Forensic Images
This presentation is from the 77th Annual Conference of the American Academy of Forensic Sciences (AAFS), Baltimore, Maryland, February 17-22, 2025.
Methodological problems in every black-box study of forensic firearm comparisons
Reviews conducted by the National Academy of Sciences (2009) and the President’s Council of Advisors on Science and Technology (2016) concluded that the field of forensic firearm comparisons has not
Interoperability Study of 3D Instruments Used in Firearms Identification
In forensic firearms identification, one of the newest emerging technologies is three-dimensional (3D) imaging. The 3D technology allows firearms examiners to virtually compare high-resolution 3D images of the surfaces of
Advancing the Understanding of 3D Imaging for Firearms Identification
Houston Forensic Science Center, in collaboration with CSAFE, has been awarded an NIJ grant to conduct a study focused on comparability of images acquired by 3D instruments manufactured by different
Algorithmic matching of striated tool marks
Automatic matching algorithms for assessing the similarity between striation marks have been investigated for bullet lands and some tool marks, such as screwdrivers. We are interested in the investigation of
A reproducible pipeline for extracting representative signals from wire cuts
We propose a reproducible pipeline for extracting representative signals from 2D topographic scans of the tips of cut wires. The process fully addresses many potential problems in the quality of
An algorithm for forensic toolmark comparisons
Forensic toolmark analysis traditionally relies on subjective human judgment, leading to inconsistencies and lack of transparency. The multitude of variables, including angles and directions of mark generation, further complicates comparisons.
A preliminary study of the manufacturing of breech faces
Firearm examiners may face challenges with subclass characteristics. Subclass characteristics have the potential to be confused with individual characteristics if a careful analysis for the presence of subclass characteristics is
Is it a True Match? Top k correlations in a database search
This presentation is from the 76th Annual Conference of the American Academy of Forensic Sciences (AAFS), Denver, Colorado, February 19-24, 2024.