Search Results for author: Ivan Zakazov

Found 3 papers, 3 papers with code

Feather-Light Fourier Domain Adaptation in Magnetic Resonance Imaging

1 code implementation31 Jul 2022 Ivan Zakazov, Vladimir Shaposhnikov, Iaroslav Bespalov, Dmitry V. Dylov

Generalizability of deep learning models may be severely affected by the difference in the distributions of the train (source domain) and the test (target domain) sets, e. g., when the sets are produced by different hardware.

Domain Adaptation

Anatomy of Domain Shift Impact on U-Net Layers in MRI Segmentation

1 code implementation10 Jul 2021 Ivan Zakazov, Boris Shirokikh, Alexey Chernyavskiy, Mikhail Belyaev

Domain Adaptation (DA) methods are widely used in medical image segmentation tasks to tackle the problem of differently distributed train (source) and test (target) data.

Anatomy Domain Generalization +3

First U-Net Layers Contain More Domain Specific Information Than The Last Ones

1 code implementation17 Aug 2020 Boris Shirokikh, Ivan Zakazov, Alexey Chernyavskiy, Irina Fedulova, Mikhail Belyaev

Our results demonstrate that 1) domain-shift may deteriorate the quality even for a simple brain extraction segmentation task (surface Dice Score drops from 0. 85-0. 89 even to 0. 09); 2) fine-tuning of the first layers significantly outperforms fine-tuning of the last layers in almost all supervised domain adaptation setups.

Domain Adaptation

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