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2019 | OriginalPaper | Chapter

Multi-view X-Ray R-CNN

Authors : Jan-Martin O. Steitz, Faraz Saeedan, Stefan Roth

Published in: Pattern Recognition

Publisher: Springer International Publishing

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Abstract

Motivated by the detection of prohibited objects in carry-on luggage as a part of avionic security screening, we develop a CNN-based object detection approach for multi-view X-ray image data. Our contributions are two-fold. First, we introduce a novel multi-view pooling layer to perform a 3D aggregation of 2D CNN-features extracted from each view. To that end, our pooling layer exploits the known geometry of the imaging system to ensure geometric consistency of the feature aggregation. Second, we introduce an end-to-end trainable multi-view detection pipeline based on Faster R-CNN, which derives the region proposals and performs the final classification in 3D using these aggregated multi-view features. Our approach shows significant accuracy gains compared to single-view detection while even being more efficient than performing single-view detection in each view.

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Footnotes
1
Unfortunately, we are not able to release the dataset to the public. Researchers wishing to evaluate on our dataset for comparison purposes are invited to contact the corresponding author.
 
2
The number of annotated objects is a restriction of the dataset only; our detector is able to handle multiple objects per image.
 
Literature
4.
go back to reference Brudy, T., Schilhab, S.: Projection of hazardous items into X-ray images of inspection objects. Patent WO 2016/001282 AI, January 2016 Brudy, T., Schilhab, S.: Projection of hazardous items into X-ray images of inspection objects. Patent WO 2016/001282 AI, January 2016
21.
go back to reference Qi, C.R., Liu, W., Wu, C., Su, H., Guibas, L.J.: Frustum pointnets for 3D object detection from RGB-D data. In: CVPR, pp. 918–927 (2018) Qi, C.R., Liu, W., Wu, C., Su, H., Guibas, L.J.: Frustum pointnets for 3D object detection from RGB-D data. In: CVPR, pp. 918–927 (2018)
30.
go back to reference Tulsiani, S., Malik, J.: Viewpoints and keypoints. In: CVPR, pp. 1510–1519 (2015) Tulsiani, S., Malik, J.: Viewpoints and keypoints. In: CVPR, pp. 1510–1519 (2015)
Metadata
Title
Multi-view X-Ray R-CNN
Authors
Jan-Martin O. Steitz
Faraz Saeedan
Stefan Roth
Copyright Year
2019
DOI
https://doi.org/10.1007/978-3-030-12939-2_12

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