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Related papers: Optimizing Photoplethysmography-Based Sleep Stagin…

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This paper proposes a novel framework for automatically capturing the time-frequency nature of electroencephalogram (EEG) signals of human sleep based on the authoritative sleep medicine guidance. The framework consists of two parts: the…

Machine Learning · Computer Science 2023-01-13 Zheng Chen , Ziwei Yang , Lingwei Zhu , Wei Chen , Toshiyo Tamura , Naoaki Ono , MD Altaf-Ul-Amin , Shigehiko Kanaya , Ming Huang

Sleep is an essential component of human physiology, contributing significantly to overall health and quality of life. Accurate sleep staging and disorder detection are crucial for assessing sleep quality. Studies in the literature have…

Signal Processing · Electrical Eng. & Systems 2025-02-26 Kianoosh Kazemi , Iman Azimi , Michelle Khine , Rami N. Khayat , Amir M. Rahmani , Pasi Liljeberg

Study Objective: Sleep is reflected not only in the electroencephalogram but also in heart rhythms and breathing patterns. Therefore, we hypothesize that it is possible to accurately stage sleep based on the electrocardiogram (ECG) and…

Sleep is essential for good health throughout our lives, yet studying its dynamics requires manual sleep staging, a labor-intensive step in sleep research and clinical care. Across centers, polysomnography (PSG) recordings are traditionally…

Machine Learning · Computer Science 2025-12-17 Niklas Grieger , Jannik Raskob , Siamak Mehrkanoon , Stephan Bialonski

Sleep is restoration process of the body. The efficiency of this restoration process is directly correlated to the amount of time spent at each sleep phase. Hence, automatic tracking of sleep via wearable devices has attracted both the…

Signal Processing · Electrical Eng. & Systems 2021-05-26 Berkay Köprü , Murat Aslan , Alisher Kholmatov

Advances in camera-based physiological monitoring have enabled the robust, non-contact measurement of respiration and the cardiac pulse, which are known to be indicative of the sleep stage. This has led to research into camera-based sleep…

Computer Vision and Pattern Recognition · Computer Science 2024-04-08 Jonathan F. Carter , João Jorge , Oliver Gibson , Lionel Tarassenko

Automatic sleep staging is a critical task in healthcare due to the global prevalence of sleep disorders. This study focuses on single-channel electroencephalography (EEG), a practical and widely available signal for automatic sleep…

Machine Learning · Computer Science 2026-01-01 Amirali Vakili , Salar Jahanshiri , Armin Salimi-Badr

Sleep stage classification constitutes an important preliminary exam in the diagnosis of sleep disorders. It is traditionally performed by a sleep expert who assigns to each 30s of signal a sleep stage, based on the visual inspection of…

Machine Learning · Statistics 2017-11-28 Stanislas Chambon , Mathieu Galtier , Pierrick Arnal , Gilles Wainrib , Alexandre Gramfort

Background: Photoplethysmography (PPG) is a non-invasive optical sensing technique widely used to capture hemodynamic information, with broad deployment in both clinical monitoring systems and wearable devices. In recent years, the…

Artificial Intelligence · Computer Science 2026-05-06 Guangkun Nie , Jiabao Zhu , Gongzheng Tang , Deyun Zhang , Shijia Geng , Qinghao Zhao , Shenda Hong

Automatic sleep staging typically relies on gold-standard EEG setups, which are accurate but obtrusive and impractical for everyday use outside sleep laboratories. This limits applicability in real-world settings, such as home environments,…

Machine Learning · Computer Science 2025-09-16 Philipp Lepold , Jonas Leichtle , Tobias Röddiger , Michael Beigl

Accurate classification of sleep stages is crucial for diagnosing sleep disorders and automating this process can significantly enhance clinical assessments. This study aims to explore the use of a self-supervised model (more specifically,…

Computer Vision and Pattern Recognition · Computer Science 2026-05-27 Eldiane Borges dos Santos Durães , João Batista Florindo

Objective: Evaluate a method for the estimation of the nocturnal systolic blood pressure (SBP) dip from 24-hour blood pressure trends using a wrist-worn photoplethysmography (PPG) sensor and a deep neural network in free-living individuals,…

As sleep disorders are becoming more prevalent there is an urgent need to classify sleep stages in a less disturbing way.In particular, sleep-stage classification using simple sensors, such as single-channel electroencephalography (EEG),…

Signal Processing · Electrical Eng. & Systems 2023-02-27 Iksoo Choi , Wonyong Sung

Polysomnography (PSG) is a type of sleep study that records multimodal physiological signals and is widely used for purposes such as sleep staging and respiratory event detection. Conventional machine learning methods assume that each sleep…

Signal Processing · Electrical Eng. & Systems 2024-02-29 Hamed Fayyaz , Abigail Strang , Niharika S. D'Souza , Rahmatollah Beheshti

Photoplethysmography (PPG) sensors allow for non-invasive and comfortable heart-rate (HR) monitoring, suitable for compact wrist-worn devices. Unfortunately, Motion Artifacts (MAs) severely impact the monitoring accuracy, causing high…

Sleep is essential for maintaining human health and quality of life. Analyzing physiological signals during sleep is critical in assessing sleep quality and diagnosing sleep disorders. However, manual diagnoses by clinicians are…

Signal Processing · Electrical Eng. & Systems 2025-10-02 Cheol-Hui Lee , Hakseung Kim , Byung C. Yoon , Dong-Joo Kim

Accurate classification of sleep stages based on bio-signals is fundamental not only for automatic sleep stage annotation, but also for clinical health management and continuous sleep monitoring. Traditionally, this task relies on…

Machine Learning · Computer Science 2025-09-09 Jingyu Li , Tiehua Zhang , Jinze Wang , Yi Zhang , Yuhuan Li , Yifan Zhao , Zhishu Shen , Libing Wu , Jiannan Liu

Recent studies showed that Photoplethysmography (PPG) sensors embedded in wearable devices can estimate heart rate (HR) with high accuracy. However, despite of prior research efforts, applying PPG sensor based HR estimation to embedded…

Machine Learning · Computer Science 2023-03-27 Yuntong Zhang , Jingye Xu , Mimi Xie , Wei Wang , Keying Ye , Jing Wang , Dakai Zhu

Sleep Stage Classification (SSC) is a labor-intensive task, requiring experts to examine hours of electrophysiological recordings for manual classification. This is a limiting factor when it comes to leveraging sleep stages for therapeutic…

Signal Processing · Electrical Eng. & Systems 2024-01-22 Ali Kavoosi , Morgan P. Mitchell , Raveen Kariyawasam , John E. Fleming , Penny Lewis , Heidi Johansen-Berg , Hayriye Cagnan , Timothy Denison

Quality sleep is very important for a healthy life. Nowadays, many people around the world are not getting enough sleep which is having negative impacts on their lifestyles. Studies are being conducted for sleep monitoring and have now…

Human-Computer Interaction · Computer Science 2024-10-21 Zawar Hussain , Quan Z. Sheng , Wei Emma Zhang , Jorge Ortiz , Seyedamin Pouriyeh