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Federated learning and its application to medical image segmentation have recently become a popular research topic. This training paradigm suffers from statistical heterogeneity between participating institutions' local datasets, incurring…

Image and Video Processing · Electrical Eng. & Systems 2023-10-19 Matthis Manthe , Stefan Duffner , Carole Lartizien

The existence of completely aligned and paired multi-modal neuroimaging data has proved its effectiveness in the diagnosis of brain diseases. However, collecting the full set of well-aligned and paired data is impractical, since the…

Image and Video Processing · Electrical Eng. & Systems 2022-07-19 Jinbao Wang , Guoyang Xie , Yawen Huang , Yefeng Zheng , Yaochu Jin , Feng Zheng

Federated learning (FL) can collaboratively train deep learning models using isolated patient data owned by different hospitals for various clinical applications, including medical image segmentation. However, a major problem of FL is its…

Image and Video Processing · Electrical Eng. & Systems 2023-05-24 Xuanang Xu , Hannah H. Deng , Tianyi Chen , Tianshu Kuang , Joshua C. Barber , Daeseung Kim , Jaime Gateno , James J. Xia , Pingkun Yan

Multisequence Magnetic Resonance Imaging (MRI) provides a more reliable diagnosis in clinical applications through complementary information across sequences. However, in practice, the absence of certain MR sequences is a common problem…

Image and Video Processing · Electrical Eng. & Systems 2025-10-21 Jihoon Cho , Jonghye Woo , Jinah Park

MR imaging will play a very important role in radiotherapy treatment planning for segmentation of tumor volumes and organs. However, the use of MR-based radiotherapy is limited because of the high cost and the increased use of metal…

Computer Vision and Pattern Recognition · Computer Science 2018-09-05 Cheng-Bin Jin , Hakil Kim , Wonmo Jung , Seongsu Joo , Ensik Park , Ahn Young Saem , In Ho Han , Jae Il Lee , Xuenan Cui

Recently, federated learning has raised increasing interest in the medical image analysis field due to its ability to aggregate multi-center data with privacy-preserving properties. A large amount of federated training schemes have been…

Computer Vision and Pattern Recognition · Computer Science 2024-10-24 Matthis Manthe , Stefan Duffner , Carole Lartizien

Radiation therapy (RT) requires precise dose delivery over multiple fractions, with CT fundamental for treatment planning due to its electron density information. Repeated CT acquisitions impose radiation exposure and logistical burdens,…

Magnetic resonance imaging (MRI) and positron emission tomography (PET) are increasingly used in multimodal analysis of neurodegenerative disorders. While MRI is broadly utilized in clinical settings, PET is less accessible. Many studies…

Image and Video Processing · Electrical Eng. & Systems 2024-11-13 Minhui Yu , Mengqi Wu , Ling Yue , Andrea Bozoki , Mingxia Liu

Image-based depth estimation has gained significant attention in recent research on computer vision for autonomous vehicles in intelligent transportation systems. This focus stems from its cost-effectiveness and wide range of potential…

Computer Vision and Pattern Recognition · Computer Science 2023-10-10 Elton F. de S. Soares , Carlos Alberto V. Campos

Magnetic resonance imaging (MRI) image segmentation is crucial in diagnosing and treating many diseases, such as brain tumors. Existing MRI image segmentation methods mainly fall into a centralized multimodal paradigm, which is inapplicable…

Computer Vision and Pattern Recognition · Computer Science 2026-03-10 Guyue Hu , Siyuan Song , Jingpeng Sun , Zhe Jin , Chenglong Li , Jin Tang

Due to data privacy constraints, data sharing among multiple centers is restricted. Continual learning, as one approach to peer-to-peer federated learning, can promote multicenter collaboration on deep learning algorithm development by…

Machine Learning · Computer Science 2022-11-28 Yixing Huang , Christoph Bert , Stefan Fischer , Manuel Schmidt , Arnd Dörfler , Andreas Maier , Rainer Fietkau , Florian Putz

Deep-learning-based MR-to-CT synthesis can estimate the electron density of tissues, thereby facilitating PET attenuation correction in whole-body PET/MR imaging. However, whole-body MR-to-CT synthesis faces several challenges including the…

Image and Video Processing · Electrical Eng. & Systems 2024-11-27 Jiaxu Zheng , Zhenrong Shen , Lichi Zhang , Qun Chen

Computed tomography (CT) is a widely used imaging modality for medical diagnosis and treatment. In electroencephalography (EEG), CT imaging is necessary for co-registering with magnetic resonance imaging (MRI) and for creating more accurate…

Medical Physics · Physics 2019-06-12 Andreas D. Lauritzen , Xenophon Papademetris , Sergei Turovets , John A. Onofrey

In federated learning (FL), classifiers (e.g., deep networks) are trained on datasets from multiple data centers without exchanging data across them, which improves the sample efficiency. However, the conventional FL setting assumes the…

Machine Learning · Computer Science 2024-02-16 Qiong Zhang , Jing Peng , Xin Zhang , Aline Talhouk , Gang Niu , Xiaoxiao Li

Developing generalizable surgical AI requires multi-institutional data, yet patient privacy constraints preclude direct data sharing, making Federated Learning (FL) a natural candidate solution. The application of FL to complex,…

The ability to synthesise Computed Tomography images - commonly known as pseudo CT, or pCT - from MRI input data is commonly assessed using an intensity-wise similarity, such as an L2-norm between the ground truth CT and the pCT. However,…

Image and Video Processing · Electrical Eng. & Systems 2020-04-15 Kerstin Kläser , Thomas Varsavsky , Pawel Markiewicz , Tom Vercauteren , David Atkinson , Kris Thielemans , Brian Hutton , M Jorge Cardoso , Sebastien Ourselin

Federated learning (FL) enables distributed computation of machine learning models over various disparate, remote data sources, without requiring to transfer any individual data to a centralized location. This results in an improved…

Low-count PET is an efficient way to reduce radiation exposure and acquisition time, but the reconstructed images often suffer from low signal-to-noise ratio (SNR), thus affecting diagnosis and other downstream tasks. Recent advances in…

Image and Video Processing · Electrical Eng. & Systems 2023-10-09 Bo Zhou , Huidong Xie , Qiong Liu , Xiongchao Chen , Xueqi Guo , Zhicheng Feng , Jun Hou , S. Kevin Zhou , Biao Li , Axel Rominger , Kuangyu Shi , James S. Duncan , Chi Liu

Federated learning (FL) has emerged with increasing popularity to collaborate distributed medical institutions for training deep networks. However, despite existing FL algorithms only allow the supervised training setting, most hospitals in…

Computer Vision and Pattern Recognition · Computer Science 2021-06-17 Quande Liu , Hongzheng Yang , Qi Dou , Pheng-Ann Heng

Most existing federated learning (FL) methods for medical image analysis only considered intramodal heterogeneity, limiting their applicability to multimodal imaging applications. In practice, some FL participants may possess only a subset…

Computer Vision and Pattern Recognition · Computer Science 2026-03-06 Hong Liu , Dong Wei , Qian Dai , Xian Wu , Yefeng Zheng , Liansheng Wang