Silah Marka Tespiti İçin Genel Şekil Karakteristikleri Temelli Sınıflandırma

2012-04-20
Gonualan, Cansu
Leloğlu, Uğur Murat
Sakarya, Ufuk
Automated Firearms Identification (AFI) systems assist to shed lights on criminal events by comparing evidences on cartridge cases and bullets and by matching similar ones that were fired from the same firearm. However, comparison process is difficult due to increased amount of incidents. Therefore, firearm brand detection is a useful step for the ballistic investigations to limit the comparison set and to increase the performance. In this paper, we propose global shape characteristics based classification for firearm brand detection. The proposed method makes use of autocorrelation function and power spectral density of the cartridge case area to extract the features related to global shape characteristics.
Sinyal İşleme ve Uygulamaları 2012 (SİU) (18 - 20 Nisan 2012)

Suggestions

Characterisation of tool marks on cartridge cases by combining multiple images
Leloğlu, Uğur Murat (2012-10-01)
The characteristic marks left by firearms on cartridge cases (CCs) during firing are used by forensic experts to identify CCs fired from the same firearm; however, the nature of the tool marks on the CCs is not well understood. The objective of this study is to separate the tool marks i.e., the signal, from the background signal and the noise and thereby understand its peculiarities. To extract the signal, which is much weaker than the noise, second-order derivatives of three-dimensional images of the surfa...
Automated region segmentation on cartridge case base
SAKARYA, Ufuk; TOPÇU, Osman; Leloğlu, Uğur Murat; SOYSAL, Medeni; TUNALI, Erol (2012-10-10)
One of the significant problems encountered in criminology studies is the successful automated matching of fired cartridge cases, on the basis of the characteristic marks left on them by firearms. An intermediate step in the solution of this problem is the segmentation of certain regions that are defined on the cartridge case base. This paper describes a model-based method that performs segmentation of the cartridge case using surface height image of a center fire cartridge case base. The proposed method de...
Emitter identification techniques in electronic warfare
Aslan, Mehmet Kadir; Ünver, Baki Zafer; Department of Electrical and Electronics Engineering (2006)
In this study, emitter identification techniques have been investigated and a schema has been proposed to solve the emitter identification problem in Electronic Warfare systems. Clustering technique, histogram based deinterleaving techniques and a continuous wavelet transform based deinterleaving technique have been reviewed. A receiver simulator software has been developed to test the performance of these techniques and to compare them against each other. To compensate the disadvantages of these techniques...
Analysis and control of gun barrel vibrations
Büyükcivelek, Fırat; Özgen, Gökhan Osman; Dursun, Tolga; Department of Mechanical Engineering (2011)
Modern battle tanks are equipped with gun stabilization systems using gyro and encoder data to stabilize the gun barrel, although these systems are very sensitive and reliable, these systems assume the gun barrel as a rigid beam, and do not use information from.
Design and analysis of a linear shape memory alloy actuator
Söylemez, Burcu; Kadıoğlu, Fevzi Suat; Department of Mechanical Engineering (2009)
Shape memory alloys are new, functional materials used in actuator applications with their high power to weight ratio. The high strength or displacement usage of shape memory alloys makes them suitable for direct drive applications, which eliminate use of power transmission elements. The aim of this research is to develop the methodology and the necessary tools to design and produce linear shape memory alloy actuators to be used in missile systems, space applications, and test equipments. In this study, the...
Citation Formats
C. Gonualan, U. M. Leloğlu, and U. Sakarya, “Silah Marka Tespiti İçin Genel Şekil Karakteristikleri Temelli Sınıflandırma,” presented at the Sinyal İşleme ve Uygulamaları 2012 (SİU) (18 - 20 Nisan 2012), Fethiye, Mugla; Turkey, 2012, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/72886.