Journal ArticleDOI
A review of airport dual energy X-ray baggage inspection techniques: Image enhancement and noise reduction.
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TLDR
This review discusses in detail of Poisson and Impulse noise, as well as its causes and effect on the X-ray images, which create un-certainty for theX-ray inspection imaging system while discriminating objects and for the screeners as well.Abstract:
In this paper, we present a review of the research literature regarding applying X-ray imaging of baggage scrutiny at airport. It discusses multiple X-ray imaging inspection systems used in airports for detecting dangerous objects inside the baggage. Moreover, it also explains the dual energy X-ray image fusion and image enhancement factors. Different types of noises in digital images and noise models are explained in length. Diagrammatical representations for different noise models are presented and illustrated to clearly show the effect of Poisson and Impulse noise on intensity values. Overall, this review discusses in detail of Poisson and Impulse noise, as well as its causes and effect on the X-ray images, which create un-certainty for the X-ray inspection imaging system while discriminating objects and for the screeners as well. The review then focuses on image processing techniques used by different research studies for X-ray image enhancement, de-noising, and their limitations. Furthermore, the most related approaches for noise reduction and its drawbacks are presented. The methods that may be useful to overcome the drawbacks are also discussed in subsequent sections of this paper. In summary, this review paper highlights the key theories and technical methods used for X-ray image enhancement and de-noising effect on X-ray images generated by the airport baggage inspection system.read more
Citations
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Journal ArticleDOI
An effective sinogram inpainting for complementary limited-angle dual-energy computed tomography imaging using generative adversarial networks
Yizhong Wang,Wenkun Zhang,Ailong Cai,Linyuan Wang,Chao Tang,Zhiwei Feng,Lei Li,Ningning Liang,Bin Yan +8 more
TL;DR: This study proposes a DECT using complementary limited-angle scan (DECT-CL) technology to reduce the radiation dose and compress the spatial distribution of the imaging system, and proposes a complementary-sinogram-inpainting generative adversarial networks (CSI-GAN) with a sinogram loss to suppress the singularity of truncated sinogram.
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Volatile Liquid Detection by Terahertz Technologies
TL;DR: In this paper, two terahertz (THz) systems, 100 GHz sub-THz line scanner and attenuation total reflection-based THz time domain spectroscopy (TDS), have been used to demonstrate the capability of identifying different liquid samples.
Journal ArticleDOI
Recent Advances in Baggage Threat Detection: A Comprehensive and Systematic Survey
TL;DR: A structured survey providing systematic insight into state-of-the-art advances in baggage threat detection is presented, including a taxonomy to classify the approaches proposed within the context of 2D and 3D CT X-ray based baggage security threat screening and a comparative analysis of the methods evaluated on four benchmarks.
Journal ArticleDOI
Total variation with modified group sparsity for CT reconstruction under low SNR
TL;DR: Wang et al. as mentioned in this paper proposed a weighted total variation with overlapping group sparsity model, which considers the structure sparsity of the image to be reconstructed to deal with the stair artifacts.
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Pulsed X-ray source with the pulse duration of 50 ns and the peak power of 70 MW for capturing moving objects.
A. A. Komarskiy,S. R. Korzhenevskiy,Andrey Viktorovich Ponomarev,Nikita Alexandrovich Komarov +3 more
TL;DR: In this paper, the authors investigated the possibility of using a pulsed X-ray source with an inductive energy storage device and a semiconductor opening switch for shooting moving objects.
References
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