Modern Computer Vision Techniques for X-ray Testing in Baggage Inspection. Mery, D., Svec, E., Arias, M., Riffo, V., Saavedra, J., & Banerjee, S. IEEE Transactions on Systems, Man, and Cybernetics: Systems, 47(4):682-692, 2017. ![Modern Computer Vision Techniques for X-ray Testing in Baggage Inspection [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper doi abstract bibtex X-ray screening systems have been used to safeguard environments in which access control is of paramount importance. Security checkpoints have been placed at the entrances to many public places to detect prohibited items such as handguns and explosives. Generally, human operators are in charge of these tasks as automated recognition in baggage inspection is still far from perfect. Research and development on X-ray testing is, however, exploring new approaches based on computer vision that can be used to aid human operators. This paper attempts to make a contribution to the field of object recognition in X-ray testing by evaluating different computer vision strategies that have been proposed in the last years. We tested ten approaches. They are based on bag of words, sparse representations, deep learning and classic pattern recognition schemes among others. For each method, we i) present a brief explanation, ii) show experimental results on the same database, and iii) provide concluding remarks discussing pros and cons of each method. In order to make fair comparisons, we define a common experimental protocol based on training, validation and testing data (selected from the public GDXray database). The effectiveness of each method was tested in the recognition of three different threat objects: handguns, shuriken (ninja stars) and razor blades. In our experiments, the highest recognition rate was achieved by methods based on visual vocabularies and deep features with more than 95% of accuracy. We strongly believe that it is possible to design an automated aid for the human inspection task using these computer vision algorithms.
@article{Mery2016:IEEE-SMCMa,
title={Modern Computer Vision Techniques for X-ray Testing in Baggage Inspection},
author={Mery, D. and Svec, E. and Arias, M. and Riffo, V. and Saavedra, J.M. and Banerjee, S.},
journal = {IEEE Transactions on Systems, Man, and Cybernetics: Systems},
volume = 47,
number = 4,
pages = {682-692},
year = 2017,
abstract = {X-ray screening systems have been used to safeguard environments in which access control is of paramount importance. Security checkpoints have been placed at the entrances to many public places to detect prohibited items such as handguns and explosives. Generally, human operators are in charge of these tasks as automated recognition in baggage inspection is still far from perfect. Research and development on X-ray testing is, however, exploring new approaches based on computer vision that can be used to aid human operators. This paper attempts to make a contribution to the field of object recognition in X-ray testing by evaluating different computer vision strategies that have been proposed in the last years. We tested ten approaches. They are based on bag of words, sparse representations, deep learning and classic pattern recognition schemes among others. For each method, we i) present a brief explanation, ii) show experimental results on the same database, and iii) provide concluding remarks discussing pros and cons of each method. In order to make fair comparisons, we define a common experimental protocol based on training, validation and testing data (selected from the public GDXray database). The effectiveness of each method was tested in the recognition of three different threat objects: handguns, shuriken (ninja stars) and razor blades. In our experiments, the highest recognition rate was achieved by methods based on visual vocabularies and deep features with more than 95\% of accuracy. We strongly believe that it is possible to design an automated aid for the human inspection task using these computer vision algorithms.},
doi = {10.1109/TSMC.2016.2628381},
url = {http://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=7775025&tag=1}
}
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