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Motor imagery (MI) is a common brain computer interface (BCI) paradigm. EEG is non-stationary with low signal-to-noise, classifying motor imagery tasks of the same participant from different EEG recording sessions is generally challenging,…

Computer Vision and Pattern Recognition · Computer Science 2023-07-27 Zhengqing Miao , Xin Zhang , Carlo Menon , Yelong Zheng , Meirong Zhao , Dong Ming

Combining multi-site data can strengthen and uncover trends, but is a task that is marred by the influence of site-specific covariates that can bias the data and therefore any downstream analyses. Post-hoc multi-site correction methods…

Image and Video Processing · Electrical Eng. & Systems 2021-11-09 Pedro Borges , Richard Shaw , Thomas Varsavsky , Kerstin Klaser , David Thomas , Ivana Drobnjak , Sebastien Ourselin , M Jorge Cardoso

Multivariate machine learning methods are increasingly used to analyze neuroimaging data, often replacing more traditional "mass univariate" techniques that fit data one voxel at a time. In the functional magnetic resonance imaging (fMRI)…

Applications · Statistics 2015-03-19 Logan Grosenick , Brad Klingenberg , Kiefer Katovich , Brian Knutson , Jonathan E. Taylor

MRI is an inherently slow process, which leads to long scan time for high-resolution imaging. The speed of acquisition can be increased by ignoring parts of the data (undersampling). Consequently, this leads to the degradation of image…

Image and Video Processing · Electrical Eng. & Systems 2022-02-22 Soumick Chatterjee , Mario Breitkopf , Chompunuch Sarasaen , Hadya Yassin , Georg Rose , Andreas Nürnberger , Oliver Speck

Purpose To develop and evaluate a deep learning-based method (MC-Net) to suppress motion artifacts in brain magnetic resonance imaging (MRI). Methods MC-Net was derived from a UNet combined with a two-stage multi-loss function. T1-weighted…

Image and Video Processing · Electrical Eng. & Systems 2022-10-26 Lei Zhang , Xiaoke Wang , Michael Rawson , Radu Balan , Edward H. Herskovits , Elias Melhem , Linda Chang , Ze Wang , Thomas Ernst

Learning meaningful latent representations from nonlinear fMRI data remains a fundamental challenge in neuroimaging analysis. Traditional independent component analysis, widely used due to its ability to estimate interpretable functional…

Machine Learning · Computer Science 2026-05-19 Qiang Li , Shujian Yu , Jesus Malo , Jingyu Liu , Tülay Adali , Vince D. Calhoun

We propose to apply non-linear representation learning to voxelwise rs-fMRI data. Learning the non-linear representations is done using a variational autoencoder (VAE). The VAE is trained on voxelwise rs-fMRI data and performs non-linear…

Computer Vision and Pattern Recognition · Computer Science 2021-08-31 Eloy Geenjaar , Tonya White , Vince Calhoun

The success of machine learning algorithms is inherently related to the extraction of meaningful features, as they play a pivotal role in the performance of these algorithms. Central to this challenge is the quality of data representation.…

Image and Video Processing · Electrical Eng. & Systems 2025-07-10 Weronika Hryniewska-Guzik , Przemyslaw Biecek

We present xRAI an approach for extracting symbolic representations of the mathematical function a neural network was supposed to learn from the trained network. The approach is based on the idea of training a so-called interpretation…

Artificial Intelligence · Computer Science 2020-12-14 Christiann Bartelt , Sascha Marton , Heiner Stuckenschmidt

In this paper, we propose a convolutional neural network with mapping layers (MCNN) for hyperspectral image (HSI) classification. The proposed mapping layers map the input patch into a low dimensional subspace by multilinear algebra. We use…

Image and Video Processing · Electrical Eng. & Systems 2019-08-27 Rui Li , Zhibin Pan , Yang Wang , Ping Wang

In neuroscience, understanding inter-individual differences has recently emerged as a major challenge, for which functional magnetic resonance imaging (fMRI) has proven invaluable. For this, neuroscientists rely on basic methods such as…

Computer Vision and Pattern Recognition · Computer Science 2020-04-07 Akrem Sellami , François-Xavier Dupé , Bastien Cagna , Hachem Kadri , Stéphane Ayache , Thierry Artières , Sylvain Takerkart

Leveraging prior knowledge on intraclass variance due to transformations is a powerful method to improve the sample complexity of deep neural networks. This makes them applicable to practically important use-cases where training data is…

Machine Learning · Computer Science 2022-02-09 Matthias Rath , Alexandru Paul Condurache

We present a cross-modality generation framework that learns to generate translated modalities from given modalities in MR images without real acquisition. Our proposed method performs NeuroImage-to-NeuroImage translation (abbreviated as…

Computer Vision and Pattern Recognition · Computer Science 2018-09-12 Qianye Yang , Nannan Li , Zixu Zhao , Xingyu Fan , Eric I-Chao Chang , Yan Xu

Image set-based visual classification methods have achieved remarkable performance, via characterising the image set in terms of a non-singular covariance matrix on a symmetric positive definite (SPD) manifold. To adapt to complicated…

Computer Vision and Pattern Recognition · Computer Science 2022-06-17 Rui Wang , Xiao-Jun Wu , Ziheng Chen , Tianyang Xu , Josef Kittler

To develop a deep-learning method for achieving fast high-resolution MR elastography from highly undersampled data without the need of high-quality training dataset. We first framed the deep neural network representation as a nonlinear…

Signal Processing · Electrical Eng. & Systems 2026-01-21 Xi Peng

Audio-visual speech recognition (AVSR) attracts a surge of research interest recently by leveraging multimodal signals to understand human speech. Mainstream approaches addressing this task have developed sophisticated architectures and…

Audio and Speech Processing · Electrical Eng. & Systems 2023-06-21 Yuchen Hu , Chen Chen , Ruizhe Li , Heqing Zou , Eng Siong Chng

There is much recent interest in techniques to accelerate the data acquisition process in MRI by acquiring limited measurements. Often sophisticated reconstruction algorithms are deployed to maintain high image quality in such settings. In…

Image and Video Processing · Electrical Eng. & Systems 2022-05-20 Zhishen Huang , Saiprasad Ravishankar

Reconstructing visual stimulus (image) only from human brain activity measured with functional Magnetic Resonance Imaging (fMRI) is a significant and meaningful task in Human-AI collaboration. However, the inconsistent distribution and…

Computer Vision and Pattern Recognition · Computer Science 2019-10-23 Ziqi Ren , Jie Li , Xuetong Xue , Xin Li , Fan Yang , Zhicheng Jiao , Xinbo Gao

Self-supervised learning methods for medical images primarily rely on the imaging modality during pretraining. While such approaches deliver promising results, they do not leverage associated patient or scan information collected within…

Computer Vision and Pattern Recognition · Computer Science 2024-10-01 Saeed Shurrab , Alejandro Guerra-Manzanares , Farah E. Shamout

Surgical state estimators in robot-assisted surgery (RAS) - especially those trained via learning techniques - rely heavily on datasets that capture surgeon actions in laboratory or real-world surgical tasks. Real-world RAS datasets are…

Robotics · Computer Science 2021-02-19 Yidan Qin , Max Allan , Yisong Yue , Joel W. Burdick , Mahdi Azizian