Search Results for author: Boris Shirokikh

Found 16 papers, 7 papers with code

Redesigning Out-of-Distribution Detection on 3D Medical Images

no code implementations7 Aug 2023 Anton Vasiliuk, Daria Frolova, Mikhail Belyaev, Boris Shirokikh

EPD is our core contribution to the new problem design, allowing us to rank methods based on their clinical impact.

Image Segmentation Medical Image Segmentation +3

Solving Sample-Level Out-of-Distribution Detection on 3D Medical Images

1 code implementation13 Dec 2022 Daria Frolova, Anton Vasiliuk, Mikhail Belyaev, Boris Shirokikh

Carefully discussing the limitations, we conclude that our method solves the sample-level OOD detection on 3D medical images in the current setting.

Descriptive Out-of-Distribution Detection +1

Negligible effect of brain MRI data preprocessing for tumor segmentation

1 code implementation11 Apr 2022 Ekaterina Kondrateva, Polina Druzhinina, Alexandra Dalechina, Svetlana Zolotova, Andrey Golanov, Boris Shirokikh, Mikhail Belyaev, Anvar Kurmukov

Magnetic resonance imaging (MRI) data is heterogeneous due to differences in device manufacturers, scanning protocols, and inter-subject variability.

Anatomy Image Denoising +3

Adaptation to CT Reconstruction Kernels by Enforcing Cross-domain Feature Maps Consistency

no code implementations28 Mar 2022 Stanislav Shimovolos, Andrey Shushko, Mikhail Belyaev, Boris Shirokikh

In this paper, we show a decrease in the COVID-19 segmentation quality of the model trained on the smooth and tested on the sharp reconstruction kernels.

Computed Tomography (CT) Domain Adaptation

Zero-Shot Domain Adaptation in CT Segmentation by Filtered Back Projection Augmentation

1 code implementation18 Jul 2021 Talgat Saparov, Anvar Kurmukov, Boris Shirokikh, Mikhail Belyaev

We analyze a dataset of paired CT images, where smooth and sharp images were reconstructed from the same sinograms with different kernels, thus providing identical anatomy but different style.

Anatomy Computed Tomography (CT) +1

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

CT-based COVID-19 Triage: Deep Multitask Learning Improves Joint Identification and Severity Quantification

no code implementations2 Jun 2020 Mikhail Goncharov, Maxim Pisov, Alexey Shevtsov, Boris Shirokikh, Anvar Kurmukov, Ivan Blokhin, Valeria Chernina, Alexander Solovev, Victor Gombolevskiy, Sergey Morozov, Mikhail Belyaev

We train our model on approximately 2000 publicly available CT studies and test it with a carefully designed set consisting of 32 COVID-19 studies, 30 cases with bacterial pneumonia, 31 healthy patients, and 30 patients with other lung pathologies to emulate a typical patient flow in an out-patient hospital.

Binary Classification

Sparse Group Inductive Matrix Completion

no code implementations27 Apr 2018 Ivan Nazarov, Boris Shirokikh, Maria Burkina, Gennady Fedonin, Maxim Panov

We consider the problem of matrix completion with side information (\textit{inductive matrix completion}).

feature selection Low-Rank Matrix Completion

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