Results 1 to 10 of about 119 (85)

Noninvasive Free Flap Monitoring Using Eulerian Video Magnification [PDF]

open access: yesCase Reports in Otolaryngology, 2016
Eulerian Video Magnification (EVM) can enhance subtle changes in videos to reveal what was once invisible to the naked eye. In this proof of concept study, we investigated using EVM as a novel form of free flap monitoring.
Yuan Fang Liu   +6 more
doaj   +3 more sources

Contactless Camera-Based Heart Rate and Respiratory Rate Monitoring Using AI on Hardware [PDF]

open access: yesSensors, 2023
Detecting vital signs by using a contactless camera-based approach can provide several advantages over traditional clinical methods, such as lower financial costs, reduced visit times, increased comfort, and enhanced safety for healthcare professionals ...
Dimitrios Kolosov   +3 more
doaj   +2 more sources

Non-invasive measurements of respiration and heart rate across wildlife species using Eulerian Video Magnification of infrared thermal imagery [PDF]

open access: yesBMC Biology, 2023
Background An animal’s metabolic rate, or energetic expenditure, both impacts and is impacted by interactions with its environment. However, techniques for obtaining measurements of metabolic rate are invasive, logistically difficult, and costly.
Caroline L. Rzucidlo   +2 more
doaj   +2 more sources

Video-Based Respiratory Rate Estimation for Infants in the NICU [PDF]

open access: yesIEEE Journal of Translational Engineering in Health and Medicine
Objective: Non-contact respiratory rate estimation (RR) is highly desirable for infants because of their sensitive skin. We propose a novel RGB video-based RR estimation method for infants in the neonatal intensive care unit (NICU) that can accurately ...
Soodeh Ahani   +4 more
doaj   +2 more sources

Extracting Cardiac Activity for Arthropods Using Digital Cameras: Insights From a Pilot Study. [PDF]

open access: yesArch Insect Biochem Physiol
Arthropods are vital to ecosystems and are among the most diverse and abundant organisms on Earth. Understanding their physiological processes, including cardiac activity, is crucial for assessing their health, behavior, and responses to environmental changes.
Wang D, Chahl J.
europepmc   +2 more sources

Inexperienced Evaluator Identification of Hand Ischemia Via Video Processed with Pigment-Enhancing Technology [PDF]

open access: yesJournal of Hand Surgery Global Online
Purpose: Eulerian video magnification (EVM)+waveform is a novel video processing software that enhances visualization of tissue perfusion and has been shown to improve hand surgeon identification of ischemia via video alone.
Max Horowitz, BS   +5 more
doaj   +2 more sources

Closing the air gap: the use of drones for studying wildlife ecophysiology. [PDF]

open access: yesBiol Rev Camb Philos Soc
ABSTRACT Techniques for non‐invasive sampling of ecophysiological data in wild animals have been developed in response to challenges associated with studying captive animals or using invasive methods. Of these, drones, also known as Unoccupied Aerial Vehicles (UAVs), and their associated sensors, have emerged as a promising tool in the ecophysiology ...
Yaney-Keller A   +3 more
europepmc   +2 more sources

Recent Progress of Optical Imaging Approaches for Noncontact Physiological Signal Measurement: A Review

open access: yesAdvanced Intelligent Systems, Volume 5, Issue 9, September 2023., 2023
Optical imaging techniques are widely used for non‐contact vital signal measurement. In this review, we discuss the principles, analysis methods, pros and cons, latest applications and future prospects of various optical imaging techniques for non‐contact vital signal measurement. In recent years, optical imaging techniques have gained wide recognition
Xinxin Zhang   +4 more
wiley   +1 more source

A Study of Machine Learning Regression Techniques for Non-Contact SpO2 Estimation from Infrared Motion-Magnified Facial Video

open access: yesInformation, 2023
This work explores the use of infrared low-cost cameras for monitoring peripheral oxygen saturation (SpO2), a vital sign that is particularly important for individuals with fragile health, such as the elderly.
Thomas Stogiannopoulos   +2 more
doaj   +1 more source

Video Motion Magnification and Subpixel Edge Detection‐Based Full‐Field Dynamic Displacement Measurement

open access: yesStructural Control and Health Monitoring, Volume 2023, Issue 1, 2023., 2023
Noncontact measurement techniques in structural dynamics field have progressed significantly in the past few decades. Vision‐based measurement techniques are unique in that they have the ability to achieve full‐field measurement and possess the typical advantages associated with noncontact measurement techniques.
Da-You Duan   +4 more
wiley   +1 more source

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