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REFACING: RECONSTRUCTING ANONYMIZED FACIAL FEATURES USING GANS
Linköping University, Department of Biomedical Engineering, Division of Biomedical Engineering. Linköping University, Faculty of Science & Engineering.
Linköping University, Department of Biomedical Engineering, Division of Biomedical Engineering. Linköping University, Department of Computer and Information Science, The Division of Statistics and Machine Learning. Linköping University, Faculty of Science & Engineering. Linköping University, Center for Medical Image Science and Visualization (CMIV).
2019 (English)In: 2019 IEEE 16TH INTERNATIONAL SYMPOSIUM ON BIOMEDICAL IMAGING (ISBI 2019), IEEE , 2019, p. 1104-1108Conference paper, Published paper (Refereed)
Abstract [en]

Anonymization of medical images is necessary for protecting the identity of the test subjects, and is therefore an essential step in data sharing. However, recent developments in deep learning may raise the bar on the amount of distortion that needs to be applied to guarantee anonymity. To test such possibilities, we have applied the novel CycleGAN unsupervised image-to-image translation framework on sagittal slices of T1 MR images, in order to reconstruct, facial features from anonymized data. We applied the CycleGAN framework on both face-blurred and face-removed images. Our results show that face blurring may not provide adequate protection against malicious attempts at identifying the subjects, while face removal provides more robust anonymization, but is still partially reversible.

Place, publisher, year, edition, pages
IEEE , 2019. p. 1104-1108
Series
IEEE International Symposium on Biomedical Imaging, ISSN 1945-7928, E-ISSN 1945-8452
Keywords [en]
MRI; anonymization; GANs; image-to-image translation
National Category
Computer Vision and Robotics (Autonomous Systems)
Identifiers
URN: urn:nbn:se:liu:diva-160633DOI: 10.1109/ISBI.2019.8759515ISI: 000485040000234ISBN: 978-1-5386-3641-1 (print)OAI: oai:DiVA.org:liu-160633DiVA, id: diva2:1359959
Conference
16th IEEE International Symposium on Biomedical Imaging (ISBI)
Note

Funding Agencies|Swedish research councilSwedish Research Council [201704889]; Center for Industrial Information Technology (CENIIT) at Linkoping University; Knut and Alice Wallenberg foundationKnut & Alice Wallenberg Foundation

Available from: 2019-10-10 Created: 2019-10-10 Last updated: 2019-10-10

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Abramian, DavidEklund, Anders
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