0000000000846641

AUTHOR

Z. Marcinkevics

showing 2 related works from this author

Comparison of remote photoplethysmography signals acquired by ultra-low noise camera and conventional camera during physiological tests

2017

In present study, remote photoplethysmography signals acquired by ultra-low noise camera and conventional camera were compared during different skin microcirculation provocation tests. The aim of work was to reveal how much of camera dynamic range and noise contribute to blood perfusion signal quality. Results demonstrate comparable capabilities of both cameras for skin perfusion monitoring.

Signal qualityComputer scienceDynamic rangeNoise (signal processing)business.industryPhotoplethysmogramImage noiseComputer visionArtificial intelligenceSkin perfusionbusinessLow noiseClinical and Preclinical Optical Diagnostics
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Remote photoplethysmography system for unsupervised monitoring regional anesthesia effectiveness

2017

Determining the level of regional anesthesia (RA) is vitally important to both an anesthesiologist and surgeon, also knowing the RA level can protect the patient and reduce the time of surgery. Normally to detect the level of RA, usually a simple subjective (sensitivity test) and complicated quantitative methods (thermography, neuromyography, etc.) are used, but there is not yet a standardized method for objective RA detection and evaluation. In this study, the advanced remote photoplethysmography imaging (rPPG) system for unsupervised monitoring of human palm RA is demonstrated. The rPPG system comprises compact video camera with green optical filter, surgical lamp as a light source and a …

medicine.medical_specialtybusiness.industryHand surgeryVideo cameralaw.inventionLight sourceRegional anesthesiaPeripheral nervelawPhotoplethysmogramThermographymedicineRadiologybusinessBrachial plexusBiophotonics—Riga 2017
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