Results 31 to 40 of about 1,748,185 (170)

Fatigue Driving Detection Method Based on IPPG Technology

Promet (Zagreb), 2023
Physiological signal index can accurately reflect the degree of fatigue, but the contact detection method will greatly affect the driver's driving. This paper presents a non-contact method for detecting tired driving. It uses cameras and other devices to
Jiuju Bi, Xunpeng Qin, Dongjin Hu, Chenyang Xu   +3 more
doaj   +1 more source

The 2023 wearable photoplethysmography roadmap [PDF]

, 2023
Photoplethysmography is a key sensing technology which is used in wearable devices such as smartwatches and fitness trackers. Currently, photoplethysmography sensors are used to monitor physiological parameters including heart rate and heart rhythm, and ...
Charlton, Peter H, Panicos A Kyriacou, Davies, Harry J., Khan, Yasser, John Allen, Xiaorong DingvJessilyn Dunn, Nan Ji, Yasser Khan, Md Mobashir Hasan Shandhi, Hu, Xiao,, Baker, Stephanie, Dunn, Jessilyn, Yumin Li, Toshiyo Tamura, Elgendi, Mohamed, Chen, Fei, Zheng, Dingchang,, Poon, Carmen CY, Zhao, Ni, Chen, Fei,, Clifton, David A.,, Liu, Chengyu,, Kyriacou, Panayiotis A, Liu, Chengyu, Pereira, Tania, Clifton, David A., Franklin, Daniel, Ramella-Roman, Jessica C, Xiao Hu, Mandic, Danilo P, Dingchang Zheng, Levy, Jeremy, Ji, Nan, Daniel Franklin, Yuan-Ting Zhang, Zheng, Dingchang, Harri Saarinen, Ding, Xiaorong,, Zhu, Tingting, Bailon, Raquel,, Behar, Joachim A.,, Jing Liu, Harry J Davies, Kontaxis, Spyridon, Ramella-Roman, Jessica C., Kyriacou, Panayiotis A.,, Jeremy Levy, Zhang, Yuan-Ting, Shin, Hangsik,, Zhang, Yuan-Ting,, Clifford, Gari D, Liu, Jing,, Gil, Eduardo,, Wang, Will Ke,, Jussi Hernesniemi, Behar, Joachim A., Hernesniemi, Jussi, Joachim A Behar, Ni Zhao, Ding, Cheng,, Saarinen, Harri,, Nitzan, Meir, Hu, Xiao, Bailon, Raquel, Mukkamala, Ramakrishna,, Vehkaoja, Antti,, Stephanie Baker, Hassan, Md Farhad,, Tamura, Toshiyo,, Antti Vehkaoja, Baker, Stephanie,, Meir NitzanvTania Pereira, Poon, Carmen C. Y., Ilkka Korhonen, Vehkaoja, Antti, Allen, John; id_orcid, Shandhi, Md Mobashir Hasan,, Hernesniemi, Jussi,, Levy, Jeremy,, Zhu, Tingting,, Allen, John,, Shin, Hangsik, Gari D Clifford, Poon, Carmen C.Y.,, Mejia-Mejia, Elisa, Mejía-Mejía, Elisa,, Ding, Cheng, Laguna, Pablo, Lu, Lei, Vaidotas Marozas, Li, Yumin, Clifton, David A, Fei Chen, Lee, Chungkeun, Lu, Lei,, Clifford, Gari D., Nitzan, Meir,, Ding, Xiaorong, Clifford, Gari D.,, Hangsik Shin, Munia Ferdoushi, Allen, John, David A Clifton, Liu, Jing, Shandhi, Md Mobashir Hasan, Davies, Harry J.,, Tamura, Toshiyo, Ji, Nan,, Carmen C Y Poon, Jesús Lázaro, Elgendi, Mohamed,, Ramella-Roman, Jessica C.,, Spyridon Kontaxis, Wang, Will Ke, Khan, Yasser,, Stansby, Gerard,, Kontaxis, Spyridon,, Lazaro, Jesus,, Lei Lu, Behar, Joachim A, Li, Yumin,, Will KeWang, Zheng, Dingchang; id_orcid, Korhonen, Ilkka,, Chungkeun Lee, Danilo P Mandic, Poon, Carmen C Y, Mukkamala, Ramakrishna, Marozas, Vaidotas,, Kyriacou, Panayiotis A., Davies, Harry J, Jessica C Ramella-Roman, Dunn, Jessilyn,, Charlton, Peter H,, Cheng Ding, Tingting Zhu, Charlton, Peter H., Stansby, Gerard, Raquel Bailón, Lazaro, Jesus, Peter H Charlton, Mohamed Elgendi, Md Farhad Hassan, Laguna, Pablo,, Pereira, Tânia,, Eduardo Gil, Elisa Mejía-Mejía, Chengyu Liu, Hassan, Md Farhad, Franklin, Daniel,, Marozas, Vaidotas, Zhao, Ni,, Pablo Laguna, Gil, Eduardo, Saarinen, Harri, Ferdoushi, Munia, Gerard Stansby, Lee, Chungkeun,, Mandic, Danilo P., Mandic, Danilo P.,, Korhonen, Ilkka, Ramakrishna Mukkamala, Ferdoushi, Munia,   +162 more
core   +9 more sources

Contactless Assessment of Cerebral Autoregulation by Photoplethysmographic Imaging at Green Illumination

Frontiers in Neuroscience, 2019
Accurate and practical assessment of the brain circulation is needed to adequately estimate the viability of cerebral blood flow regulatory mechanisms in various physiological conditions.
Olga A. Lyubashina, Olga A. Lyubashina, Oleg V. Mamontov, Oleg V. Mamontov, Maxim A. Volynsky, Valeriy V. Zaytsev, Alexei A. Kamshilin   +6 more
doaj   +1 more source

Remote Photoplethysmography for Evaluation of Cutaneous Sensory Nerve Fiber Function

Sensors, 2021
About 2% of the world’s population suffers from small nerve fiber dysfunction, neuropathy, which can result in severe pain. This condition is caused by damage to the small nerve fibers and its assessment is challenging, due to the lack of simple and ...
Zbignevs Marcinkevics, Alise Aglinska, Uldis Rubins, Andris Grabovskis   +3 more
doaj   +1 more source

Review of deep learning methods for imaging photoplethysmography data processing

Научно-технический вестник информационных технологий, механики и оптики
This paper presents a review of contemporary deep learning methods for processing remote photoplethysmography data. Architectures of convolutional neural networks, transformers, recurrent, and generative models are examined for video signal preprocessing
I. M. Rubin, M. A. Volynsky
doaj   +1 more source

USING PHOTOPLETHYSMOGRAPHY IMAGING FOR OBJECTIVE CONTACTLESS PAIN ASSESSMENT

Acta Polytechnica, 2014
This work presents an extension to the known Analgesia Nociception Index (ANI), which provides an objective estimation of the current depth of analgesia. An adequate “measure” would facilitate so-called balanced anesthesia.
Marcus Koeny, Nikolai Blanik, Xinchi Yu, Michael Czaplik, Marian Walter, Rolf Rossaint, Vladimir Blazek, Steffen Leonhardt   +7 more
doaj   +1 more source

Monitoring of Cardiorespiratory Signal: Principles of Remote Measurements and Review of Methods

IEEE Access, 2017
Physiological signs can be remotely observed from the physiological and physical effects caused by a cardiorespiratory activity. A wide range of research on remote cardiorespiratory monitoring systems has been done using different methods, including ...
Ali Al-Naji, Kim Gibson, Sang-Heon Lee, Javaan Chahl   +3 more
doaj   +1 more source

Empirical retinal venous pulse wave velocity using modified photoplethysmography

BMC Research Notes, 2023
Objective Using the novel imaging method of high-speed modified photoplethysmography we measured the retinal venous pulse wave velocity in a single case. Results A healthy 30-year-old subject underwent high-speed modified photoplethysmography (120 frames
Anmar Abdul-Rahman, William Morgan, Aleksandar Vukmirovic, Andrew Mehnert, Danail Obreschow, Dao-Yi Yu   +5 more
doaj   +1 more source

Video-rate or high-precision: A flexible range imaging camera [PDF]

, 2008
A range imaging camera produces an output similar to a digital photograph, but every pixel in the image contains distance information as well as intensity.
Dorrington, Adrian A., Payne, Andrew D., Conroy, Richard M., Andrew D. Payne, Jongenelen, Adrian P.P., Adrian A. Dorrington, Adrian P. P. Jongenelen, Carnegie, Dale A., Michael J. Cree, John P. Godbaz, Godbaz, John Peter, Dale A. Carnegie, Richard M. Conroy, Cree, Michael J.   +13 more
core   +1 more source

Contactless Monitoring of Microcirculation Reaction on Local Temperature Changes

Applied Sciences, 2019
Assessment of skin blood flow is an important clinical task which is required to study mechanisms of microcirculation regulation including thermoregulation.
Maxim A. Volynsky, Nikita B. Margaryants, Oleg V. Mamontov, Alexei A. Kamshilin   +3 more
doaj   +1 more source