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Symmetric Positive Definite (SPD) matrix learning methods have become popular in many image and video processing tasks, thanks to their ability to learn appropriate statistical representations while respecting Riemannian geometry of…

Computer Vision and Pattern Recognition · Computer Science 2016-12-23 Zhiwu Huang , Luc Van Gool

With Motor-Imagery (MI) Brain--Machine Interfaces (BMIs) we may control machines by merely thinking of performing a motor action. Practical use cases require a wearable solution where the classification of the brain signals is done locally…

Signal Processing · Electrical Eng. & Systems 2021-02-23 Xiaying Wang , Tibor Schneider , Michael Hersche , Lukas Cavigelli , Luca Benini

The brain-computer interface (BCI) establishes a non-muscle channel that enables direct communication between the human body and an external device. Electroencephalography (EEG) is a popular non-invasive technique for recording brain…

Machine Learning · Computer Science 2026-02-23 Jamal Hwaidi , Mohamed Chahine Ghanem

Brain-computer interfaces are being explored for a wide variety of therapeutic applications. Typically, this involves measuring and analyzing continuous-time electrical brain activity via techniques such as electrocorticogram (ECoG) or…

Neural and Evolutionary Computing · Computer Science 2023-04-28 Yiming Ai , Bipin Rajendran

Human emotions are difficult to convey through words and are often abstracted in the process; however, electroencephalogram (EEG) signals can offer a more direct lens into emotional brain activity. Recent studies show that deep learning…

Neurons and Cognition · Quantitative Biology 2025-11-19 Nilay Kumar , Priyansh Bhandari , G. Maragatham

Objective. This study conduct an extensive Brain-computer interfaces (BCI) reproducibility analysis on open electroencephalography datasets, aiming to assess existing solutions and establish open and reproducible benchmarks for effective…

Signal Processing · Electrical Eng. & Systems 2024-04-25 Sylvain Chevallier , Igor Carrara , Bruno Aristimunha , Pierre Guetschel , Sara Sedlar , Bruna Lopes , Sebastien Velut , Salim Khazem , Thomas Moreau

Electroencephalography (EEG) plays a vital role in recording brain activities and is integral to the development of brain-computer interface (BCI) technologies. However, the limited availability and high variability of EEG signals present…

Signal Processing · Electrical Eng. & Systems 2024-02-16 Joshua Park , Priyanshu Mahey , Ore Adeniyi

Over the past few years, symmetric positive definite (SPD) matrices have been receiving considerable attention from computer vision community. Though various distance measures have been proposed in the past for comparing SPD matrices, the…

Computer Vision and Pattern Recognition · Computer Science 2015-01-13 Raviteja Vemulapalli , David W. Jacobs

Brain-Computer Interface (BCI) is a powerful communication tool between users and systems, which enhances the capability of the human brain in communicating and interacting with the environment directly. Advances in neuroscience and…

Signal Processing · Electrical Eng. & Systems 2020-01-31 Xiaotong Gu , Zehong Cao , Alireza Jolfaei , Peng Xu , Dongrui Wu , Tzyy-Ping Jung , Chin-Teng Lin

Brain-computer interface (BCI) provides an alternative means to communicate and it has sparked growing interest in the past two decades. Specifically, for Steady-State Visual Evoked Potential based BCI, marked improvement has been made in…

Signal Processing · Electrical Eng. & Systems 2020-06-24 Bingchuan Liu , Xiaoshan Huang , Yijun Wang , Xiaogang Chen , Xiaorong Gao

This paper proposes an original Riemmanian geometry for low-rank structured elliptical models, i.e., when samples are elliptically distributed with a covariance matrix that has a low-rank plus identity structure. The considered geometry is…

Differential Geometry · Mathematics 2020-01-07 Florent Bouchard , Arnaud Breloy , Guillaume Ginolhac , Alexandre Renaux , Frédéric Pascal

Brain computer interfaces (BCI) enable direct communication with a computer, using neural activity as the control signal. This neural signal is generally chosen from a variety of well-studied electroencephalogram (EEG) signals. For a given…

Machine Learning · Computer Science 2018-06-28 Vernon J. Lawhern , Amelia J. Solon , Nicholas R. Waytowich , Stephen M. Gordon , Chou P. Hung , Brent J. Lance

The notion of a Brain-Computer Interface system is the acquisition of signals from the brain, processing them, and translating them into commands. The study concentrated on a specific sort of brain signal known as Motor Imagery EEG signals,…

Neurons and Cognition · Quantitative Biology 2023-08-22 Vimal W , Akshansh Gupta

The use of EEG biometrics, for the purpose of automatic people recognition, has received increasing attention in the recent years. Most of current analysis rely on the extraction of features characterizing the activity of single brain…

Neurons and Cognition · Quantitative Biology 2014-09-10 Daria La Rocca , Patrizio Campisi , Balazs Vegso , Peter Cserti , Gyorgy Kozmann , Fabio Babiloni , Fabrizio De Vico Fallani

Noninvasive brain computer interfaces (BCI), and more specifically Electroencephalography (EEG) based systems for intent detection need to compensate for the low signal to noise ratio of EEG signals. In many applications, the temporal…

Human-Computer Interaction · Computer Science 2017-03-09 Seyed Sadegh Mohseni Salehi , Mohammad Moghadamfalahi , Hooman Nezamfar , Marzieh Haghighi , Deniz Erdogmus

Brain-Computer Interfaces (BCI) based on motor imagery translate mental motor images recognized from the electroencephalogram (EEG) to control commands. EEG patterns of different imagination tasks, e.g. hand and foot movements, are…

Signal Processing · Electrical Eng. & Systems 2021-01-27 Alessandro Bria , Claudio Marrocco , Francesco Tortorella

Dealing with irregular domains, graph signal processing (GSP) has attracted much attention especially in brain imaging analysis. Motor imagery tasks are extensively utilized in brain-computer interface (BCI) systems that perform…

Signal Processing · Electrical Eng. & Systems 2022-01-25 Maliheh Miri , Vahid Abootalebi , Hamid Behjat

State-space models (SSMs) have become a cornerstone for unraveling brain dynamics, revealing how latent neural states evolve over time and give rise to observed signals. By combining the flexibility of deep learning with the principled…

Machine Learning · Computer Science 2026-02-03 Tingting Dan , Jiaqi Ding , Guorong Wu

Classifying Electroencephalogram(EEG) signals helps in understanding Brain-Computer Interface (BCI). EEG signals are vital in studying how the human mind functions. In this paper, we have used an Arithmetic Calculation dataset consisting of…

Neurons and Cognition · Quantitative Biology 2022-09-02 Umang Goenka , Param Patil , Kush Gosalia , Aaryan Jagetia

Common spatial pattern (CSP) is a popular feature extraction method for electroencephalogram (EEG) motor imagery (MI). This study modifies the conventional CSP algorithm to improve the multi-class MI classification accuracy and ensure the…

Signal Processing · Electrical Eng. & Systems 2020-09-02 Ce Zhang , Azim Eskandarian