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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

Most brain-computer interfaces (BCIs) based on functional near-infrared spectroscopy (fNIRS) require that users perform mental tasks such as motor imagery, mental arithmetic, or music imagery to convey a message or to answer simple yes or…

Human-Computer Interaction · Computer Science 2018-12-17 Alborz Rezazadeh Sereshkeh , Rozhin Yousefi , Andrew T Wong , Tom Chau

Brain computer interface (BCI) has been popular as a key approach to monitor our brains recent year. Mental states monitoring is one of the most important BCI applications and becomes increasingly accessible. However, the mental state…

Signal Processing · Electrical Eng. & Systems 2019-11-14 Dongdong Zhang , Dong Cao , Haibo Chen

This paper proposes a novel approach that uses deep neural networks for classifying imagined speech, significantly increasing the classification accuracy. The proposed approach employs only the EEG channels over specific areas of the brain…

Neurons and Cognition · Quantitative Biology 2020-03-24 Jerrin Thomas Panachakel , A. G. Ramakrishnan , A. G. Ramakrishnan

Brain-computer interfaces (BCI) offer numerous human-centered application possibilities, particularly affecting people with neurological disorders. Text or speech decoding from brain activities is a relevant domain that could augment the…

Audio and Speech Processing · Electrical Eng. & Systems 2025-01-10 Jihwan Lee , Tiantian Feng , Aditya Kommineni , Sudarsana Reddy Kadiri , Shrikanth Narayanan

A brain-computer interface (BCI) based on electroencephalography (EEG) can be useful for rehabilitation and the control of external devices. Five grasping tasks were decoded for motor execution (ME) and motor imagery (MI). During this…

Human-Computer Interaction · Computer Science 2022-12-15 Jeong-Hyun Cho , Byoung-Hee Kwon , Byeong-Hoo Lee

Brain-computer interface (BCI) technology establishes a direct communication pathway between the brain and external devices. Current visual BCI systems suffer from insufficient information transfer rates (ITRs) for practical use. Spatial…

Human-Computer Interaction · Computer Science 2025-07-24 Gege Ming , Weihua Pei , Sen Tian , Xiaogang Chen , Xiaorong Gao , Yijun Wang

An alternative pathway for the human brain to communicate with the outside world is by means of a brain computer interface (BCI). A BCI can decode electroencephalogram (EEG) signals of brain activities, and then send a command or an intent…

Computer Vision and Pattern Recognition · Computer Science 2019-07-31 Junhua Li , Zbigniew Struzik , Liqing Zhang , Andrzej Cichocki

A brain-computer interface (BCI) is used not only to control external devices for healthy people but also to rehabilitate motor functions for motor-disabled patients. Decoding movement intention is one of the most significant aspects for…

Signal Processing · Electrical Eng. & Systems 2020-02-04 D. -Y. Lee , J. -H. Jeong , K. -H. Shim , S. -W. Lee

Recently, smart home systems based on brain-computer interface (BCI) has attracted a wide range of interests in both industry and academia. However, the current BCI system has several shortcomings as it produces a comparatively lower…

Human-Computer Interaction · Computer Science 2020-02-05 Hyeong-Jin Kim , Min-Ho Lee , Minji Lee

Noninvasive brain-computer interface (BCI) is widely used to recognize users' intentions. Especially, BCI related to tactile and sensation decoding could provide various effects on many industrial fields such as manufacturing advanced touch…

Human-Computer Interaction · Computer Science 2020-12-22 Jeong-Hyun Cho , Ji-Hoon Jeong , Myoung-Ki Kim , Seong-Whan Lee

In this paper, we propose a conceptual framework for personalized brain-computer interface (BCI) applications, which can offer an enhanced user experience by customizing services to individual preferences and needs, based on endogenous…

Human-Computer Interaction · Computer Science 2024-11-19 Heon-Gyu Kwak , Gi-Hwan Shin , Yeon-Woo Choi , Dong-Hoon Lee , Yoo-In Jeon , Jun-Su Kang , Seong-Whan Lee

The brain computer interface (BCI) is a nonstimulatory direct and occasionally bidirectional communication link between the brain and a computer or an external device. Classically, EEG-based BCI algorithms have relied on models such as…

Signal Processing · Electrical Eng. & Systems 2022-08-19 Andrea Duggento , Mario De Lorenzo , Stefano Bargione , Allegra Conti , Vincenzo Catrambone , Gaetano Valenza , Nicola Toschi

Imagine unlocking the power of the mind to communicate, create, and even interact with the world around us. Recent breakthroughs in Artificial Intelligence (AI), especially in how machines "see" and "understand" language, are now fueling…

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

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

Speech impairments due to cerebral lesions and degenerative disorders can be devastating. For humans with severe speech deficits, imagined speech in the brain-computer interface has been a promising hope for reconstructing the neural…

Neurons and Cognition · Quantitative Biology 2022-04-18 Keon-Woo Lee , Dae-Hyeok Lee , Sung-Jin Kim , Seong-Whan Lee

Transformers are groundbreaking architectures that have changed a flow of deep learning, and many high-performance models are developing based on transformer architectures. Transformers implemented only with attention with encoder-decoder…

Human-Computer Interaction · Computer Science 2021-12-20 Young-Eun Lee , Seo-Hyun Lee

Decoding EEG signals for imagined speech is a challenging task due to the high-dimensional nature of the data and low signal-to-noise ratio. In recent years, denoising diffusion probabilistic models (DDPMs) have emerged as promising…

Audio and Speech Processing · Electrical Eng. & Systems 2023-07-28 Soowon Kim , Young-Eun Lee , Seo-Hyun Lee , Seong-Whan Lee

Detailed exploration on Brain Computer Interface (BCI) and its recent trends has been done in this paper. Work is being done to identify objects, images, videos and their color compositions. Efforts are on the way in understanding speech,…

Human-Computer Interaction · Computer Science 2012-11-13 T. Kameswara Rao , M. Rajya Lakshmi , T. V. Prasad