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Remote photoplethysmography (rPPG) is an attractive camera-based health monitoring method that can measure the heart rhythm from facial videos. Many well-established deep-learning models have been reported to measure heart rate (HR) and…

Computer Vision and Pattern Recognition · Computer Science 2022-12-22 Jialiang Zhuang , Yuheng Chen , Yun Zhang , Xiujuan Zheng

Background: Photoplethysmography (PPG), increasingly available through wearable devices, provides a non-invasive means of monitoring human hemodynamics. In this study, we introduce artificial intelligence-derived photoplethysmography…

Signal Processing · Electrical Eng. & Systems 2025-09-26 Guangkun Nie , Qinghao Zhao , Gongzheng Tang , Yaxin Li , Shenda Hong

Clinical laboratory tests provide essential biochemical measurements for diagnosis and treatment, but are limited by intermittent and invasive sampling. In contrast, photoplethysmogram (PPG) is a non-invasive, continuously recorded signal…

The use of cameras and computational algorithms for noninvasive, low-cost and scalable measurement of physiological (e.g., cardiac and pulmonary) vital signs is very attractive. However, diverse data representing a range of environments,…

Computer Vision and Pattern Recognition · Computer Science 2022-06-10 Daniel McDuff , Miah Wander , Xin Liu , Brian L. Hill , Javier Hernandez , Jonathan Lester , Tadas Baltrusaitis

Orofacial deficits are common in people with Parkinson's disease (PD) and their evolution might represent an important biomarker of disease progression. We are developing an automated system for assessment of orofacial function in PD that…

Computer Vision and Pattern Recognition · Computer Science 2020-03-19 Diego L. Guarin , Aidan Dempster , Andrea Bandini , Yana Yunusova , Babak Taati

Camera-based physiological monitoring, especially remote photoplethysmography (rPPG), is a promising tool for health diagnostics, and state-of-the-art pulse estimators have shown impressive performance on benchmark datasets. We argue that…

Computer Vision and Pattern Recognition · Computer Science 2023-03-14 Jeremy Speth , Nathan Vance , Benjamin Sporrer , Lu Niu , Patrick Flynn , Adam Czajka

Human heartbeat can be measured using several different ways appropriately based on the patient condition which includes contact base such as measured by using instruments and non-contact base such as computer vision assisted techniques.…

Computer Vision and Pattern Recognition · Computer Science 2020-10-12 Vladislav Ostankovich , Geesara Prathap , Ilya Afanasyev

Camera-based physiological monitoring, such as remote photoplethysmography (rPPG), captures subtle variations in skin optical properties caused by pulsatile blood volume changes using standard digital camera sensors. The demand for…

Image and Video Processing · Electrical Eng. & Systems 2026-01-05 Nicky Nirlipta Sahoo , VS Sachidanand , Matcha Naga Gayathri , Balamurali Murugesan , Keerthi Ram , Jayaraj Joseph , Mohanasankar Sivaprakasam

Hypertension is a medical condition characterized by high blood pressure, and classifying it into its various stages is crucial to managing the disease. In this project, a novel method is proposed for classifying stages of hypertension…

Machine Learning · Computer Science 2023-04-17 Graham Frederick , Yaswant T , Brintha Therese A

Breathing rate is a vital health metric that is an invaluable indicator of the overall health of a person. In recent years, the non-contact measurement of health signals such as breathing rate has been a huge area of development, with a…

Image and Video Processing · Electrical Eng. & Systems 2023-11-16 Robyn Maxwell , Timothy Hanley , Dara Golden , Adara Andonie , Joseph Lemley , Ashkan Parsi

In this demo paper, we design and prototype RhythmEdge, a low-cost, deep-learning-based contact-less system for regular HR monitoring applications. RhythmEdge benefits over existing approaches by facilitating contact-less nature,…

Machine Learning · Computer Science 2022-08-16 Zahid Hasan , Emon Dey , Sreenivasan Ramasamy Ramamurthy , Nirmalya Roy , Archan Misra

Respiratory rate (RR) serves as an indicator of various medical conditions, such as cardiovascular diseases and sleep disorders. These RR estimation methods were mostly designed for finger-based PPG collected from subjects in stationary…

Signal Processing · Electrical Eng. & Systems 2024-01-12 Kianoosh Kazemi , Iman Azimi , Pasi Liljeberg , Amir M. Rahmani

In the post-covid19 era, every new wave of the pandemic causes an increased concern among the masses to learn more about their state of well-being. Therefore, it is the need of the hour to come up with ubiquitous, low-cost, non-invasive…

Signal Processing · Electrical Eng. & Systems 2024-12-04 Ahsan Mehmood , Asma Sarauji , M. Mahboob Ur Rahman , Tareq Y. Al-Naffouri

Photoplethysmography (PPG) refers to the measurement of variations in blood volume using light and is a feature of most wearable devices. The PPG signals provide insight into the body's circulatory system and can be employed to extract…

Signal Processing · Electrical Eng. & Systems 2024-01-17 Yuyang Miao , Harry J. Davies , Danilo P. Mandic

Heart rate and respiratory rate measurement is a vital step for diagnosing many diseases. Non-contact camera based physiological measurement is more accessible and convenient in Telehealth nowadays than contact instruments such as fingertip…

Image and Video Processing · Electrical Eng. & Systems 2021-11-02 Yuzhuo Ren , Braeden Syrnyk , Niranjan Avadhanam

Photoplethysmography (PPG) is a non-invasive and economical technique to extract vital signs of the human body. Although it has been widely used in consumer and research grade wrist devices to track a user's physiology, the PPG signal is…

Signal Processing · Electrical Eng. & Systems 2021-09-08 Runyu Mao , Mackenzie Tweardy , Stephan W. Wegerich , Craig J. Goergen , George R. Wodicka , Fengqing Zhu

Continuous monitoring of human vital signs using non-contact mmWave radars is attractive due to their ability to penetrate garments and operate under different lighting conditions. Unfortunately, most prior research requires subjects to…

Signal Processing · Electrical Eng. & Systems 2023-03-27 Bo Zhang , Boyu Jiang , Rong Zheng , Xiaoping Zhang , Jun Li , Qiang Xu

In recent years, deep learning methods have shown impressive results for camera-based remote physiological signal estimation, clearly surpassing traditional methods. However, the performance and generalization ability of Deep Neural…

Computer Vision and Pattern Recognition · Computer Science 2024-08-01 Joaquim Comas , Antonia Alomar , Adria Ruiz , Federico Sukno

Smart watches and other wearable devices are equipped with photoplethysmography (PPG) sensors for monitoring heart rate and other aspects of cardiovascular health. However, PPG signals collected from such devices are susceptible to…

Signal Processing · Electrical Eng. & Systems 2023-07-12 Pranay Jain , Cheng Ding , Cynthia Rudin , Xiao Hu

With the increasing use of smartphones in our daily lives, these devices have become capable of performing many complex tasks. Concerning the need for continuous monitoring of vital signs, especially for the elderly or those with certain…

Signal Processing · Electrical Eng. & Systems 2024-03-29 Taha Samavati , Mahdi Farvardin , Aboozar Ghaffari