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Cortical oscillations, electrophysiological activity patterns, associated with cognitive functions and impaired in many psychiatric disorders can be observed in intracranial electroencephalography (iEEG). Direct cortical stimulation (DCS)…

Medical Physics · Physics 2018-11-22 Sankaraleengam Alagapan , Hae Won Shin , Flavio Frohlich , Hau-tieng Wu

Electrocardiogram (ECG) artifact contamination often occurs in surface electromyography (sEMG) applications when the measured muscles are in proximity to the heart. Previous studies have developed and proposed various methods, such as…

Signal Processing · Electrical Eng. & Systems 2022-10-25 Kuan-Chen Wang , Kai-Chun Liu , Sheng-Yu Peng , Yu Tsao

Electroencephalogram (EEG) signals may get easily contaminated by muscle artifacts, which may lead to wrong interpretation in the brain--computer interface (BCI) system as well as in various medical diagnoses. The main objective of this…

Signal Processing · Electrical Eng. & Systems 2022-04-15 Souvik Phadikar , Nidul Sinha , Rajdeep Ghosh , Ebrahim Ghaderpour

Electroencephalography (EEG) is highly susceptible to artifact contamination, such as electrooculographic (EOG) and electromyographic (EMG) interference, which severely degrades signal quality and hinders reliable interpretation in…

Signal Processing · Electrical Eng. & Systems 2026-05-12 Phat Lam

The recorded electroencephalography (EEG) signals are usually contaminated by many artifacts. In recent years, deep learning models have been used for denoising of electroencephalography (EEG) data and provided comparable performance with…

Signal Processing · Electrical Eng. & Systems 2021-02-16 Haoming Zhang , Chen Wei , Mingqi Zhao , Haiyan Wu , Quanying Liu

Electroencephalography (EEG) signals are easily corrupted by various artifacts, making artifact removal crucial for improving signal quality in scenarios such as disease diagnosis and brain-computer interface (BCI). In this paper, we…

Signal Processing · Electrical Eng. & Systems 2024-03-08 Yan Pei , Jiahui Xu , Qianhao Chen , Chenhao Wang , Feng Yu , Lisan Zhang , Wei Luo

This study introduces a novel framework to apply Artifact Subspace Reconstruction (ASR) algorithm on single-channel Electroencephalogram (EEG) data. ASR, renowned for its automated capability to effectively eliminate various artifacts like…

Signal Processing · Electrical Eng. & Systems 2024-10-30 Doli Hazarika , Vishnu KN , Ramdas Ransing , Cota Navin Gupta

Electroencephalogram (EEG) signals are highly susceptible to artifacts, resulting in a low signal-to-noise ratio which makes extraction of meaningful neural information challenging. Artifact Subspace Reconstruction (ASR) is one of the most…

Signal Processing · Electrical Eng. & Systems 2026-05-15 Shantanu Sarkar , Jose L. Contreras-Vidal

When applying the foreground removal methods to uncover the faint cosmological signal from the epoch of reionization (EoR), the foreground spectra are assumed to be smooth. However, this assumption can be seriously violated in practice…

Instrumentation and Methods for Astrophysics · Physics 2019-03-15 Weitian Li , Haiguang Xu , Zhixian Ma , Ruimin Zhu , Dan Hu , Zhenghao Zhu , Junhua Gu , Chenxi Shan , Jie Zhu , Xiang-Ping Wu

Due to its advantages of high temporal and spatial resolution, the technology of simultaneous electroencephalogram-functional magnetic resonance imaging (EEG-fMRI) acquisition and analysis has attracted much attention, and has been widely…

Machine Learning · Computer Science 2023-09-01 Guang Lin , Jianhai Zhang , Yuxi Liu , Tianyang Gao , Wanzeng Kong , Xu Lei , Tao Qiu

22. Shortening acquisition time and reducing the motion-artifact are two of the most critical issues in MRI. As a promising solution, high-quality MRI image restoration provides a new approach to achieve higher resolution without costing…

Image and Video Processing · Electrical Eng. & Systems 2021-02-02 Hao Li , Jianan Liu

Purpose: To develop a pipeline for motion artifact correction in mGRE and quantitative susceptibility mapping (QSM). Methods: Deep learning is integrated with autofocus to improve motion artifact suppression, which is applied QSM of…

Signal Processing · Electrical Eng. & Systems 2024-05-28 Chao Li , Jinwei Zhang , Hang Zhang , Jiahao Li , Pascal Spincemaille , Thanh D. Nguyen , Yi Wang

Electroencephalogram (EEG) has shown a useful approach to produce a brain-computer interface (BCI). One-dimensional (1-D) EEG signal is yet easily disturbed by certain artifacts (a.k.a. noise) due to the high temporal resolution. Thus, it…

Signal Processing · Electrical Eng. & Systems 2025-04-03 Peng Yi , Kecheng Chen , Zhaoqi Ma , Di Zhao , Xiaorong Pu , Yazhou Ren

Image noise and motion artifacts greatly affect the quality of brain MRI and negatively influence downstream medical image analysis. Previous studies often focus on 2D methods that process each volumetric MR image slice-by-slice, thus…

Image and Video Processing · Electrical Eng. & Systems 2024-03-14 Lintao Zhang , Mengqi Wu , Lihong Wang , David C. Steffens , Guy G. Potter , Mingxia Liu

Electroencephalography (EEG) signals are frequently contaminated by artifacts, affecting the accuracy of subsequent analysis. Traditional artifact removal methods are often computationally expensive and inefficient for real-time…

Signal Processing · Electrical Eng. & Systems 2026-02-11 Haoliang Liu , Chengkun Cai , Xu Zhao , Lei Li

Diffusion-weighted MRI is nowadays performed routinely due to its prognostic ability, yet the quality of the scans are often unsatisfactory which can subsequently hamper the clinical utility. To overcome the limitations, here we propose a…

Image and Video Processing · Electrical Eng. & Systems 2021-05-04 Hyungjin Chung , Jaehyun Kim , Jeong Hee Yoon , Jeong Min Lee , Jong Chul Ye

Objective. Electroencephalography (EEG) is a widely used neuroimaging technique known for its cost-effectiveness and user-friendliness. However, various artifacts, particularly biological artifacts like Electromyography (EMG) signals, lead…

Signal Processing · Electrical Eng. & Systems 2025-03-18 Lu Wang-Nöth , Philipp Heiler , Hai Huang , Daniel Lichtenstern , Alexandra Reichenbach , Luis Flacke , Linus Maisch , Helmut Mayer

The work presented explores the use of denoising autoencoders (DAE) for brain lesion detection, segmentation and false positive reduction. Stacked denoising autoencoders (SDAE) were pre-trained using a large number of unlabeled patient…

Computer Vision and Pattern Recognition · Computer Science 2017-01-11 Varghese Alex , Kiran Vaidhya , Subramaniam Thirunavukkarasu , Chandrasekharan Kesavdas , Ganapathy Krishnamurthi

Motion artifacts caused by prolonged acquisition time are a significant challenge in Magnetic Resonance Imaging (MRI), hindering accurate tissue segmentation. These artifacts appear as blurred images that mimic tissue-like appearances,…

Image and Video Processing · Electrical Eng. & Systems 2024-12-06 Sunyoung Jung , Yoonseok Choi , Mohammed A. Al-masni , Minyoung Jung , Dong-Hyun Kim

Objective. Wearable devices with embedded photoplethysmography (PPG) enable continuous non-invasive monitoring of cardiac activity, offering a promising strategy to reduce the global burden of cardiovascular diseases. However, monitoring…

Signal Processing · Electrical Eng. & Systems 2025-08-15 Giulio Basso , Xi Long , Reinder Haakma , Rik Vullings