Three .45 caliber brass cartridge casings standing upright on a wooden surface.

Type: Webinar

Research Area: Firearms and Toolmarks

This CSAFE Center Wide Webinar was presented by Xiao Hui Tai from Carnegie Mellon University on January 31, 2018.
Description:

We will describe work that we have done on an automated method to compare breechface marks on 2D images of cartridge cases, and how this transfers to 3D topographies. We will discuss various studies and compare the results for 2D and 3D data. In the future, such algorithms may be used by examiners for blind verification or for quantifying the weight of evidence.

Related Resources

A thick gray wavy line forming an abstract, looping shape on a light gray background.

An Introduction to the Forensic Handwriting Analysis Software handwriter

July 18, 2025

Full Article

Blue shoeprint with a tread pattern on a white background.

Forensic Footwear: A Retrospective of the Development of the MANTIS Shoe Scanning System

July 10, 2025

There currently are no shoe-scanning devices developed in the United States that can operate in a real-world, variable-weather environment in …

Full Article

A green fingerprint icon on a light gray background.

Examiner consistency in perceptions of fingerprint minutia rarity

July 10, 2025

Friction ridge examiners (FREs) identify distinctive features (minutiae) in fingerprints and consider how rare these observed minutiae are in their …

Full Article