Regular Articles

Container weld identification using portable laser scanners

[+] Author Affiliations
Pierluigi Taddei, Gunnar Boström, David Puig, Vítor Sequeira

European Commission, Joint Research Centre, Institute for Transuranium Elements, I-21027 Ispra (VA), Italy

Victor Kravtchenko

International Atomic Energy Agency IAEA, 1400 Vienna, Austria

J. Electron. Imaging. 24(2), 023005 (Mar 06, 2015). doi:10.1117/1.JEI.24.2.023005
History: Received September 8, 2014; Accepted February 11, 2015
Text Size: A A A

Abstract.  Identification and integrity verification of sealed containers for security applications can be obtained by employing noninvasive portable optical systems. We present a portable laser range imaging system capable of identifying welds, a byproduct of a container’s physical sealing, with micrometer accuracy. It is based on the assumption that each weld has a unique three-dimensional (3-D) structure which cannot be copied or forged. We process the 3-D surface to generate a normalized depth map which is invariant to mechanical alignment errors and that is used to build compact signatures representing the weld. A weld is identified by performing cross correlations of its signature against a set of known signatures. The system has been tested on realistic datasets, containing hundreds of welds, yielding no false positives or false negatives and thus showing the robustness of the system and the validity of the chosen signature.

© 2015 SPIE and IS&T

Citation

Pierluigi Taddei ; Gunnar Boström ; David Puig ; Victor Kravtchenko and Vítor Sequeira
"Container weld identification using portable laser scanners", J. Electron. Imaging. 24(2), 023005 (Mar 06, 2015). ; http://dx.doi.org/10.1117/1.JEI.24.2.023005


Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

PubMed Articles
Advertisement
  • Don't have an account?
  • Subscribe to the SPIE Digital Library
  • Create a FREE account to sign up for Digital Library content alerts and gain access to institutional subscriptions remotely.
Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).
Access This Proceeding
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
Access This Chapter

Access to SPIE eBooks is limited to subscribing institutions and is not available as part of a personal subscription. Print or electronic versions of individual SPIE books may be purchased via SPIE.org.