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Longitudinal Change Detection on Chest X-rays Using Geometric Correlation Maps

  • Dong Yul Oh
  • Jihang Kim
  • Kyong Joon LeeEmail author
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 11769)

Abstract

The diagnostic decision for chest X-ray image generally considers a probable change in a lesion, compared to the previous examination. We propose a novel algorithm to detect the change in longitudinal chest X-ray images. We extract feature maps from a pair of input images through two streams of convolutional neural networks. Next we generate the geometric correlation map computing matching scores for every possible match of local descriptors in two feature maps. This correlation map is fed into a binary classifier to detect specific patterns of the map representing the change in the lesion. Since no public dataset offers proper information to train the proposed network, we also build our own dataset by analyzing reports in examinations at a tertiary hospital. Experimental results show our approach outperforms previous methods in quantitative comparison. We also provide various case examples visualizing the effect of the proposed geometric correlation map.

Keywords

Chest X-ray Longitudinal analysis Change detection Geometric correlation Neural network 

Notes

Acknowledgement

This work was supported by the Industrial Strategic technology development program (10072064) funded by the Ministry of Trade, Industry and Energy (MI, Korea) and by grant (no. 13-2019-006) from the SNUBH Research Fund.

Supplementary material

490281_1_En_83_MOESM1_ESM.pdf (1.7 mb)
Supplementary material 1 (pdf 1785 KB)

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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Interdisciplinary Program in BioengineeringSeoul National UniversitySeoulKorea
  2. 2.Department of RadiologySeoul National University Bundang HospitalSeongnam-siKorea

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