A novel intensity limiting approach to Metal Artefact Reduction in 3D CT baggage imagery

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dc.contributor.authorMouton, Andre
dc.contributor.authorMegherbi, Najla
dc.contributor.authorFlitton, Greg T.
dc.contributor.authorBizot, Suzanne
dc.contributor.authorBreckon, Toby P.
dc.date.accessioned2024-04-16T14:00:09Z
dc.date.available2024-04-16T14:00:09Z
dc.date.issued2013-02-21
dc.description.abstractThis paper introduces a novel technique for Metal Artefact Reduction (MAR) in the previously unconsidered context 3D CT baggage imagery. The output of a conventional sinogram completion-based MAR approach is refined by imposing an upper limit on the intensity of the corrected images and by performing post-filtering using the non-local means filter. Furthermore, performance is evaluated using a novel quantitative analysis technique, using the ratio of noisy 3D SIFT detection points identified, as well as a standard qualitative comparison (visual quality). The objective of the quantitative analysis is to evaluate the impact of MAR on the application of computer vision techniques for automatic object recognition. The study yields encouraging results in both the qualitative and quantitative analyses. The proposed method yields a significant improvement in performance when compared to algorithms based on linear interpolation and reprojection-reconstruction; especially in terms of reducing the occurrence of new artefacts in the corrected images. The results serve as a strong indication that MAR will aid human and computerised analyses of 3D CT baggage imagery for transport security screening.en_UK
dc.identifier.citationMouton A, Megherbi N, Flitton GT, et al., (2013) A novel intensity limiting approach to metal artefact reduction in 3D CT baggage imagery. In: 19th IEEE International Conference on Image Processing, 30 September 2012 - 3 October 2012, Orlando, USA, pp. 2057-2060en_UK
dc.identifier.isbn978-1-4673-2534-9
dc.identifier.issn1522-4880
dc.identifier.urihttps://doi.org/10.1109/ICIP.2012.6467295
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/21199
dc.language.isoen_UKen_UK
dc.publisherIEEEen_UK
dc.rightsAttribution-NonCommercial 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/*
dc.subjectMetal Artefact Reductionen_UK
dc.subjectbaggage CTen_UK
dc.subject3D SIFTen_UK
dc.titleA novel intensity limiting approach to Metal Artefact Reduction in 3D CT baggage imageryen_UK
dc.typeConference paperen_UK

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