English
Related papers

Related papers: Remote Blood Oxygen Estimation From Videos Using N…

200 papers

Accurate estimation of the speed-of-sound (SoS) is important for ultrasound (US) image reconstruction techniques and tissue characterization. Various approaches have been proposed to calculate SoS, ranging from tomography-inspired…

Machine Learning · Computer Science 2024-09-24 Michal Byra , Piotr Jarosik , Piotr Karwat , Ziemowit Klimonda , Marcin Lewandowski

Assessment of heart sounds is the cornerstone of cardiac examination, but it requires a stethoscope, skills and experience, and a direct contact with the patient. We developed a contactless, machine-learning assisted method for heart-sound…

The reliability of the results of self monitoring of the vitals in the wild using medical devices or wearables or camera based smart phone solutions is subject to variabilities such as position of placement, hardware of the device and…

Computer Vision and Pattern Recognition · Computer Science 2024-09-01 Nikhil S. Narayan , Shashanka B. R. , Rohit Damodaran , Chandrashekhar Jayaram , M. A. Kareem , Mamta P. , Saravanan K. R. , Monu Krishnan , Raja Indana

3D hand pose tracking/estimation will be very important in the next generation of human-computer interaction. Most of the currently available algorithms rely on low-cost active depth sensors. However, these sensors can be easily interfered…

Computer Vision and Pattern Recognition · Computer Science 2016-10-25 Jiawei Zhang , Jianbo Jiao , Mingliang Chen , Liangqiong Qu , Xiaobin Xu , Qingxiong Yang

The present paper addresses the task of reliably identifying critical contacts by using COVID-19 tracing apps. A reliable classification is crucial to ensure a high level of protection, and at the same time to prevent many people from being…

Signal Processing · Electrical Eng. & Systems 2020-08-12 Christoph Günther , Daniel Günther

Photoplethysmography (PPG) signals have become a key technology in many fields, such as medicine, well-being, or sports. Our work proposes a set of pipelines to extract remote PPG signals (rPPG) from the face robustly, reliably, and…

Computer Vision and Pattern Recognition · Computer Science 2023-05-08 Constantino Álvarez Casado , Miguel Bordallo López

In the current times, the fear and danger of COVID-19 virus still stands large. Manual monitoring of social distancing norms is impractical with a large population moving about and with insufficient task force and resources to administer…

Computer Vision and Pattern Recognition · Computer Science 2022-12-19 Sahana Srinivasan , Rujula Singh R , Ruchita R Biradar , Revathi SA

Video-based remote physiological measurement utilizes facial videos to measure the blood volume change signal, which is also called remote photoplethysmography (rPPG). Supervised methods for rPPG measurements have been shown to achieve good…

Computer Vision and Pattern Recognition · Computer Science 2024-02-20 Zhaodong Sun , Xiaobai Li

Current finger-vein or palm-vein recognition systems usually require direct contact of the subject with the apparatus. This can be problematic in environments where hygiene is of primary importance. In this work we present a contactless…

Computer Vision and Pattern Recognition · Computer Science 2025-08-25 David Geissbühler , Sushil Bhattacharjee , Ketan Kotwal , Guillaume Clivaz , Sébastien Marcel

Obstructive sleep apnea (OSA) is one of the most widespread respiratory diseases today. Complete or relative breathing cessations due to upper airway subsidence during sleep is OSA. It has confirmed potential influence on Covid-19…

Machine Learning · Computer Science 2021-12-20 Hosna Ghandeharioun

People often interact with their surroundings by applying pressure with their hands. While hand pressure can be measured by placing pressure sensors between the hand and the environment, doing so can alter contact mechanics, interfere with…

Computer Vision and Pattern Recognition · Computer Science 2022-10-04 Patrick Grady , Chengcheng Tang , Samarth Brahmbhatt , Christopher D. Twigg , Chengde Wan , James Hays , Charles C. Kemp

One of the critical tools for early detection and subsequent evaluation of the incidence of lung diseases is chest radiography. This study presents a real-world implementation of a convolutional neural network (CNN) based Carebot Covid app…

Image and Video Processing · Electrical Eng. & Systems 2022-03-22 Daniel Kvak , Marian Bendik , Anna Chromcova

Heartbeat rhythm and heart rate (HR) are important physiological parameters of the human body. This study presents an efficient multi-hierarchical spatio-temporal convolutional network that can quickly estimate remote physiological (rPPG)…

Computer Vision and Pattern Recognition · Computer Science 2023-04-24 Bin Li , Panpan Zhang , Jinye Peng , Hong Fu

Unaddressed pain in neonates can lead to adverse effects, including delayed development and slower weight gain, emphasising the need for more objective and reliable pain assessment methods. Hence, automated methods using behavioural and…

Computer Vision and Pattern Recognition · Computer Science 2026-04-29 Ashutosh Dhamaniya , Anup Kumar Gupta , Trishna Saikia , Puneet Gupta

Surgery monitoring in Mixed Reality (MR) environments has recently received substantial focus due to its importance in image-based decisions, skill assessment, and robot-assisted surgery. Tracking hands and articulated surgical instruments…

Computer Vision and Pattern Recognition · Computer Science 2024-10-03 Ahmed Tawfik Aboukhadra , Nadia Robertini , Jameel Malik , Ahmed Elhayek , Gerd Reis , Didier Stricker

In this paper we propose a technique for obtaining coarse pose estimation of humans in an image that does not require any manual supervision. While a general unsupervised technique would fail to estimate human pose, we suggest that…

Computer Vision and Pattern Recognition · Computer Science 2017-04-14 Prabuddha Chakraborty , Vinay P. Namboodiri

In this study, the problem of automatically classifying pulmonary diseases, including the recently emerged COVID-19, from X-Ray images, is considered. While the spread of COVID-19 is increased, new, automatic, and reliable methods for…

Image and Video Processing · Electrical Eng. & Systems 2020-06-09 Ioannis D. Apostolopoulos , Sokratis Aznaouridis , Mpesiana Tzani

Monitoring of prevalent airborne diseases such as COVID-19 characteristically involves respiratory assessments. While auscultation is a mainstream method for preliminary screening of disease symptoms, its utility is hampered by the need for…

Measurement of intramuscular oxygen could play a key role in the early diagnosis of acute compartment syndrome, a common condition occurring after severe trauma leading to ischemia and long-term consequences including rhabdomyolysis, limb…

Contactless monitoring using thermal imaging has become increasingly proposed to monitor patient deterioration in hospital, most recently to detect fevers and infections during the COVID-19 pandemic. In this letter, we propose a novel…

Computer Vision and Pattern Recognition · Computer Science 2022-02-11 Thanh Nguyen-Duc , Peter Y Chan , Andrew Tay , David Chen , John Tan Nguyen , Jessica Lyall , Maria De Freitas