Results 111 to 120 of about 6,479 (196)

A Robust Remote Photoplethysmography Method

Remote photoplethysmography (rPPG) is a method for measuring a subjects heart rate remotely using a camera. Factors such as subject movement, ambient light level, makeup etc. complicate such measurements by distorting the observed pulse. Recent works on this topic have proposed a variety of approaches for accurately measuring heart rate in humans ...
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A Comprehensive Review of Deepfake Detection Techniques Utilizing Remote Photoplethysmography

IEEE Access
Deepfake technology enables the creation of highly realistic but fabricated videos, raising significant concerns about the authenticity and reliability of digital media.
Kavya Sree Kammari, Manju Khanna, Yasasree Lasya Annambhotla, Keerthi Devarajan Anuradha, Poosarla Naga Suryapadma Namrata, K. V. Nagaraja, T. V. Smitha, Tony Jan, Ganesh R. Naik   +8 more
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Remote monitored non-invasive photoplethysmography

, 2020
Photoplethysmography (PPG) is a very easy and low-price method among the optical measurements techniques which can be used to determine blood volume changes in the microvascular of tissue. It is generally used for determining the important parameters such as heart beat and oxygen level of bloods at the skin surface.
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Comparative Analysis of Color Models for improved rPPG Signals in Remote Blood Pressure Measurement

Current Directions in Biomedical Engineering
The quality of remote photoplethysmography (rPPG) signals presents a significant challenge in contactless optical blood pressure measurement. Feature and morphologybased approaches heavily rely on subtle changes in signal characteristics, but rPPG ...
Wuerich Carolin, Heinrich Kira, Wiede Christian, Seidl Karsten   +3 more
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Associations Between Heart Rate Variability Measured With a Wrist-Worn Sensor and Older Adults' Physical Function: Observational Study. [PDF]

, 2019
BACKGROUND:Heart rate variability (HRV), or variation in beat-to-beat intervals of the heart, is a quantitative measure of autonomic regulation of the cardiovascular system.
Depp, Colin A, Graham, Sarah Anne, Jeste, Dilip V, Kim, Ho-Cheol, Lee, Ellen E, Tu, Xin, Wu, Tsung-Chin   +6 more
core  

An image-processing toolkit for remote photoplethysmography

Multimedia Tools and Applications
Abstract Objective. Image-processing-based remote photoplethysmography algorithms are usually composed of steps where different methods are used, and often, researchers perform these steps using methods that are not necessarily the best for their application.
Javier Montalvo, Álvaro García-Martín, José M. Martínez   +2 more
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Innovative approaches in imaging photoplethysmography for remote blood oxygen monitoring

Scientific Reports
Peripheral Capillary Oxygen Saturation (SpO2) has received increasing attention during the COVID-19 pandemic. Clinical investigations have demonstrated that individuals afflicted with COVID-19 exhibit notably reduced levels of SpO2 before the ...
Shangwei Zhu, Shaohua Liu, Xingjian Jing, Yuchong Yang, Chundong She   +4 more
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Heart Rate Estimation from Remote Photoplethysmography Signal

International Journal For Multidisciplinary Research
Remote photoplethysmography (rPPG) enables noncontact heart rate estimation from facial videos by analyzing subtle color changes correlated with blood volume pulses. However, rPPG signals are often contaminated with motion artifacts, illumination noise, and facial expression changes.
Arya Sharma, Krishi Verma, Bhawna Sharma, Sheetal Gandotra, Ankita Sharma   +4 more
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Remote Vital Sensing in Clinical Veterinary Medicine: A Comprehensive Review of Recent Advances, Accomplishments, Challenges, and Future Perspectives

Animals
Remote vital sensing in veterinary medicine is a relatively new area of practice, which involves the acquisition of data without invasion of the body cavities of live animals.
Xinyue Zhao, Ryou Tanaka, Ahmed S. Mandour, Kazumi Shimada, Lina Hamabe   +4 more
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Adaptive Parameter Optimization for Robust Remote Photoplethysmography

Remote photoplethysmography (rPPG) enables contactless vital sign monitoring using standard RGB cameras. However, existing methods rely on fixed parameters optimized for particular lighting conditions and camera setups, limiting adaptability to diverse deployment environments.
Morales, Cecilia G., Teh, Fanurs Chi En, Li, Kai, Agrawal, Pushpak, Dubrawski, Artur   +4 more
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