ArticleBMC biology2019
Extracting physiological information in experimental biology via Eulerian video magnification.
Article in BMC biology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed.
- Dynamic Tracking of Respiratory Rate and Quantitative Analysis of Heat Stress Response of Caged Broilers Based on Infrared Thermal Imaging Video Amplification Technology.Animals : an open access journal from MDPI · 2026Article
- Application of infrared thermography coupled with Eulerian Video Magnification to monitor vital signs in wild seals, from sandy beaches to icy shores.BMC biology · 2026Article
- Embryos are largely understudied in a representative sample of journals in conservation physiology.Conservation physiology · 2026Article
- Closing the air gap: the use of drones for studying wildlife ecophysiology.Biological reviews of the Cambridge Philosophical Society · 2025Review
- Ultrasound description of the coelomic cavity of the axolotl (Ambystoma mexicanum) in a clinically healthy population: a pilot study.Scientific reports · 2024Article
- Quantitative 4D imaging of biomechanical regulation of ventricular growth and maturation.Current opinion in biomedical engineering · 2023Article
- Non-invasive measurements of respiration and heart rate across wildlife species using Eulerian Video Magnification of infrared thermal imagery.BMC biology · 2023Article
- Opportunities and short-comings of the axolotl salamander heart as a model system of human single ventricle and excessive trabeculation.Scientific reports · 2022Article
- Article
- Acquirement of the autonomic nervous system modulation evaluated by heart rate variability in medaka (Oryzias latipes).PloS one · 2022Article
- Non-Contact Video-Based Neonatal Respiratory Monitoring.Children (Basel, Switzerland) · 2020Article
- An Overview of Methods for Cardiac Rhythm Detection in Zebrafish.Biomedicines · 2020Review
- Extracting physiological information in experimental biology via Eulerian video magnification.BMC biology · 2019Article
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9 authors.
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Abstract
backgroundVideographic material of animals can contain inapparent signals, such as color changes or motion that hold information about physiological functions, such as heart and respiration rate, pulse wave velocity, and vocalization. Eulerian video magnification allows the enhancement of such signals to enable their detection. The purpose of this study is to demonstrate how signals relevant to experimental physiology can be extracted from non-contact videographic material of animals.
resultsWe applied Eulerian video magnification to detect physiological signals in a range of experimental models and in captive and free ranging wildlife. Neotenic Mexican axolotls were studied to demonstrate the extraction of heart rate signal of non-embryonic animals from dedicated videographic material. Heart rate could be acquired both in single and multiple animal setups of leucistic and normally colored animals under different physiological conditions (resting, exercised, or anesthetized) using a wide range of video qualities. Pulse wave velocity could also be measured in the low blood pressure system of the axolotl as well as in the high-pressure system of the human being. Heart rate extraction was also possible from videos of conscious, unconstrained zebrafish and from non-dedicated videographic material of sand lizard and giraffe. This technique also allowed for heart rate detection in embryonic chickens in ovo through the eggshell and in embryonic mice in utero and could be used as a gating signal to acquire two-phase volumetric micro-CT data of the beating embryonic chicken heart. Additionally, Eulerian video magnification was used to demonstrate how vocalization-induced vibrations can be detected in infrasound-producing Asian elephants.
conclusionsEulerian video magnification provides a technique to extract inapparent temporal signals from videographic material of animals. This can be applied in experimental and comparative physiology where contact-based recordings (e.g., heart rate) cannot be acquired.
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