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Brain-computer interface uses brain signals to control external devices without actual control behavior. Recently, speech imagery has been studied for direct communication using language. Speech imagery uses brain signals generated when the…

Human-Computer Interaction · Computer Science 2020-12-08 Byeong-Hoo Lee , Byeong-Hee Kwon , Do-Yeun Lee , Ji-Hoon Jeong

Non-invasive brain-computer interfaces that decode spoken commands from electroencephalogram must be both accurate and trustworthy. We present a confidence-aware decoding framework that couples deep ensembles of compact, speech-oriented…

Artificial Intelligence · Computer Science 2025-11-12 Soowon Kim , Byung-Kwan Ko , Seo-Hyun Lee

Brain-computer interface (BCI) is the technology that enables the communication between humans and devices by reflecting status and intentions of humans. When conducting imagined speech, the users imagine the pronunciation as if actually…

Human-Computer Interaction · Computer Science 2021-12-15 Dae-Hyeok Lee , Sung-Jin Kim , Keon-Woo Lee

Non-invasive decoding of imagined speech remains challenging due to weak, distributed signals and limited labeled data. Our paper introduces an image-based approach that transforms magnetoencephalography (MEG) signals into time-frequency…

Computation and Language · Computer Science 2026-01-23 Soufiane Jhilal , Stéphanie Martin , Anne-Lise Giraud

In this study, we propose an ensemble learning framework for electroencephalogram-based overt speech classification, leveraging denoising diffusion probabilistic models with varying convolutional kernel sizes. The ensemble comprises three…

Sound · Computer Science 2024-11-15 Soowon Kim , Ha-Na Jo , Eunyeong Ko

This work explores the possibility of decoding Imagined Speech (IS) signals which can be used to create a new design of Human-Computer Interface (HCI). Since the underlying process generating EEG signals is unknown, various feature…

Signal Processing · Electrical Eng. & Systems 2020-11-26 Abhiram Singh , Ashwin Gumaste

One of the main challenges in electroencephalogram (EEG) based brain-computer interface (BCI) systems is learning the subject/session invariant features to classify cognitive activities within an end-to-end discriminative setting. We…

Signal Processing · Electrical Eng. & Systems 2022-12-12 Andac Demir , Iya Khalil , Bulent Kiziltan

Imagined speech is spotlighted as a new trend in the brain-machine interface due to its application as an intuitive communication tool. However, previous studies have shown low classification performance, therefore its use in real-life is…

Signal Processing · Electrical Eng. & Systems 2020-08-31 Dong-Yeon Lee , Minji Lee , Seong-Whan Lee

A brain-computer interface (BCI) enables a user to communicate with a computer directly using brain signals. The most common non-invasive BCI modality, electroencephalogram (EEG), is sensitive to noise/artifact and suffers…

Human-Computer Interaction · Computer Science 2022-11-15 Dongrui Wu , Yifan Xu , Bao-Liang Lu

Previous research has demonstrated the potential of using pre-trained language models for decoding open vocabulary Electroencephalography (EEG) signals captured through a non-invasive Brain-Computer Interface (BCI). However, the impact of…

Signal Processing · Electrical Eng. & Systems 2024-08-13 Hamza Amrani , Daniela Micucci , Paolo Napoletano

Brain-computer interface (BCI) is one of the tools which enables the communication between humans and devices by reflecting intention and status of humans. With the development of artificial intelligence, the interest in communication…

Signal Processing · Electrical Eng. & Systems 2021-07-16 Dae-Hyeok Lee , Sung-Jin Kim , Seong-Whan Lee

Translation of imagined speech electroencephalogram(EEG) into human understandable commands greatly facilitates the design of naturalistic brain computer interfaces. To achieve improved imagined speech unit classification, this work aims to…

Signal Processing · Electrical Eng. & Systems 2020-11-05 Rini A Sharon , Hema A Murthy

Silent speech decoding, which performs unvocalized human speech recognition from electroencephalography/electromyography (EEG/EMG), increases accessibility for speech-impaired humans. However, data collection is difficult and performed…

Quantitative Methods · Quantitative Biology 2025-06-18 Masakazu Inoue , Motoshige Sato , Kenichi Tomeoka , Nathania Nah , Eri Hatakeyama , Kai Arulkumaran , Ilya Horiguchi , Shuntaro Sasai

Decoding natural language from brain activity using non-invasive electroencephalography (EEG) remains a significant challenge in neuroscience and machine learning, particularly for open-vocabulary scenarios where traditional methods…

Machine Learning · Computer Science 2025-06-19 Mohamed Masry , Mohamed Amen , Mohamed Elzyat , Mohamed Hamed , Norhan Magdy , Maram Khaled

The new perspective in visual classification aims to decode the feature representation of visual objects from human brain activities. Recording electroencephalogram (EEG) from the brain cortex has been seen as a prevalent approach to…

Computer Vision and Pattern Recognition · Computer Science 2020-06-30 Xianglin Zheng , Zehong Cao , Quan Bai

Brain signals accompany various information relevant to human actions and mental imagery, making them crucial to interpreting and understanding human intentions. Brain-computer interface technology leverages this brain activity to generate…

Artificial Intelligence · Computer Science 2024-11-15 Jung-Sun Lee , Ha-Na Jo , Seo-Hyun Lee

Decoding spoken speech from neural activity in the brain is a fast-emerging research topic, as it could enable communication for people who have difficulties with producing audible speech. For this task, electrocorticography (ECoG) is a…

Audio and Speech Processing · Electrical Eng. & Systems 2023-12-22 Miseul Kim , Zhenyu Piao , Jihyun Lee , Hong-Goo Kang

Decoding the speech signal that a person is listening to from the human brain via electroencephalography (EEG) can help us understand how our auditory system works. Linear models have been used to reconstruct the EEG from speech or vice…

Audio and Speech Processing · Electrical Eng. & Systems 2021-06-18 Mohammad Jalilpour Monesi , Bernd Accou , Tom Francart , Hugo Van Hamme

The electroencephalogram (EEG) offers a non-invasive means by which a listener's auditory system may be monitored during continuous speech perception. Reliable auditory-EEG decoders could facilitate the objective diagnosis of hearing…

Audio and Speech Processing · Electrical Eng. & Systems 2023-12-18 Mike Thornton , Danilo Mandic , Tobias Reichenbach

The recent advances in the field of deep learning have not been fully utilised for decoding imagined speech primarily because of the unavailability of sufficient training samples to train a deep network. In this paper, we present a novel…

Signal Processing · Electrical Eng. & Systems 2020-03-23 Jerrin Thomas Panachakel , A. G. Ramakrishnan , T. V. Ananthapadmanabha