eprintid: 1471284 rev_number: 20 eprint_status: archive userid: 608 dir: disk0/01/47/12/84 datestamp: 2015-09-24 14:58:47 lastmod: 2020-02-12 16:00:21 status_changed: 2015-09-24 14:58:47 type: article metadata_visibility: show creators_name: Uroukov, I creators_name: Speller, R title: A Preliminary Approach to Intelligent X-ray Imaging for Baggage Inspection at Airports ispublished: pub divisions: UCL divisions: A01 divisions: B04 divisions: C05 divisions: F42 note: Copyright © 2015 Science and Engineering Publishing Company. This article is published under CC BY licence (http://creativecommons.org/licenses/by/3.0/) abstract: Identifying explosives in baggage at airports relies on being able to characterize the materials that make up an X-ray image. If a suspicion is generated during the imaging process (step 1), the image data could be enhanced by adapting the scanning parameters (step 2). This paper addresses the first part of this problem and uses textural signatures to recognize and characterize materials and hence enabling system control. Directional Gabor-type filtering was applied to a series of different X-ray images. Images were processed in such a way as to simulate a line scanning geometry. Based on our experiments with images of industrial standards and our own samples it was found that different materials could be characterized in terms of the frequency range and orientation of the filters. It was also found that the signal strength generated by the filters could be used as an indicator of visibility and optimum imaging conditions predicted. date: 2015 date_type: published official_url: http://dx.doi.org/10.14355/spr.2015.04.001 oa_status: green full_text_type: pub language: eng primo: open primo_central: open_green verified: verified_manual elements_id: 1054886 doi: 10.14355/spr.2015.04.001 lyricists_name: Speller, Robert lyricists_id: RDSPE08 actors_name: Speller, Robert actors_name: Barczynska, Patrycja actors_id: RDSPE08 actors_id: PBARC91 actors_role: owner actors_role: impersonator full_text_status: public publication: Signal Processing Research volume: 4 number: 0 pagerange: 1-1 issn: 2327-171X citation: Uroukov, I; Speller, R; (2015) A Preliminary Approach to Intelligent X-ray Imaging for Baggage Inspection at Airports. Signal Processing Research , 4 p. 1. 10.14355/spr.2015.04.001 <https://doi.org/10.14355/spr.2015.04.001>. Green open access document_url: https://discovery.ucl.ac.uk/id/eprint/1471284/1/SPR064.pdf