BRASSTRAX captures high-resolution 2D images and precise 3D topographic information of significant regions of interest. For centerfire cartridge cases, this includes the breech face and firing pin impressions on the primer, and the ejector mark. For rimfire cartridge cases, this includes the firing pin impression. A detailed image of the complete head is also captured for reference.
The majority of the acquisition process is fully automated, so that minimal user input reduces operator variability. The automation of image focus, image lighting, and region of interest outlining ensures consistent image quality for visualization and uniformity for optimal comparison performance.
BULLETTRAX captures high-resolution 2D images and 3D topographic information of a bullet's lands and grooves. It produces an image strip representing a bullet's 360-degree circumference, or a combination of regions from a bullet's fragments.
The acquisition process is fully automated after the initial setup by the user. This reduces the operator's required training level, and produces consistent image quality. Complex algorithms track the bullet's surface by rotating and moving the bullet, and they precisely capture its markings and its shape at optimal focus and lighting settings.
Access to high-resolution 2D images and precise 3D topography offers remarkable viewing capabilities and useful alternatives when analyzing cartridge case and bullet markings.
An extensive array of viewers and functions assist with the identification of similar candidates. High level analysis of correlation results and visual comparisons allow for the rapid elimination of non-matches. Powerful in-depth visualization tools provide capabilities far beyond those of the conventional comparison microscope, and make it easier to recognize high-confidence matches. The work done using MATCHPOINT significantly increases the identification success rate, and decreases the effort required for ultimate confirmation on a conventional comparison microscope.
Bullets acquired using BULLETTRAX are viewed as a continuous wraparound image that is always in focus. The flattened image strip can be viewed in 2D, 3D, or a mix of both. This overall view provides a useful perspective for performing high-level phase alignment before comparing the finer markings, and it also simplifies the comparison of damaged bullets. Additionally, the combination of the enhanced surface markings and the realistic shape simultaneously makes it easier to locate and emphasize significant markings, such as those on the bearing surface of polygonal and smooth bore bullets.
Cartridge cases acquired using BRASSTRAX are viewed based on multiple regions of interest in 2D, 3D, or a mix of both. One or more of these regions can hold the key to finding a match. The 3D information provides remarkable advantages for the comparison of cartridge cases.