Tool and Firearm Identification System Based on Image Processing

Characteristic markings on the cartridge case and projectile of a fired bullet are created when it is fired. Inclusion, Characteristic markings on the objectivity is created by tool. Different features within these marks can be distinguished, which in combination produce a “fingerprint” for a tool or a firearm. By analyzing features within such a set of tool or firearm fingerprints, it will be possible to identify not only the type and model of a tool or a firearm, but also each every individual tool or weapon as effectively as human fingerprint identification. A new analytic system based on Fast Fourier transform for identifying the specimens by the line-scan imaging technique is proposed in this paper. Experimental results show that the proposed system can be used for tool or firearm identification efficiently and precisely through digitizing and analyzing the objectivity and fired projectiles specimens.