Automated bullet identification based on striation feature using 3D laser color scanner

A procedure for automated bullet identification is described based on striation measurement using the bullet 3D digital representations obtained by a laser color scanner. When we do bullet identification by eye, we try to best match the striations according to the order of the striations and the distance between them. Based on this principle, individual characteristics which describe the unique striation pattern on the bullet are extracted. Experimental results prove that our algorithm can find the bullets with high trace similarity correctly and do bullet identification successfully.