Digital holographic image processing for the positive firearm identificaiton
Document Type
Conference Proceeding
Faculty
Faculty of Computing, Health and Science
School
School of Computer and Information Science
Abstract
The need for firearm identification systems by police services continues to increase with greater accessibility to weapons in the national and international contexts. The difficulties associated with traditional imaging of ballistics specimens are numerous, and include the smallness of the samples, the nature of the surfaces and shapes for the cartridge cases and projectiles .The digital holography has been introduced to create the 3D image of the fired bullets in order to identify firearms. In digital holography a CCD camera records optically generated holograms which is then reconstructed numerically by a calculation of scalar diffraction in the Fresnel approximation. The digital photography facilitates real time transmission of the message via traditional communication methods. In this paper the principle of digital holography and its application to the 3D image encryption-decryption are reviewed. The experimental results of firearm identification recording using digital holography and their numerical reconstruction are presented.
Comments
Li, D. (2008). Digital holographic image processing for the positive firearm identificaiton. In 2008 Sino-European Workshop on Intelligent Robots and Systems : SEIROS '08, Chongqing, China, December 11-13, 2008 : conference digest.