Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Infrared (IR) Spectroscopy: Overview

Infrared (IR) Spectroscopy: Overview

When electromagnetic radiation passes through a material, atoms or molecules transition from a lower to a higher energy state by absorbing radiation corresponding to the energy difference between the two states. The absorption of infrared (IR) radiation causes transitions between vibrational energy levels in a molecule. Therefore, IR spectroscopy is a useful analytical tool for determining the molecular structure of molecules.
Different compounds display unique properties due to their...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Vancomycin-stressed <i>Staphylococcus aureus</i> extracellular vesicles hijack macrophage autophagy to enhance bacterial intracellular survival.

Autophagy·2026

Same author

Non-contact Heart Sound Measurement by Defocused Speckle Imaging.

IEEE journal of biomedical and health informatics·2026

Same author

Mass school testing for Mycobacterium tuberculosis infection and disease in an adolescent population: A prospective cohort from eastern China.

Journal of epidemiology·2026

Same author

Converting a Cough Counter into a Cough Monitor: A Way Forward?

Medical sciences (Basel, Switzerland)·2026

Same author

Tumor Budding Is a Promising Indicator for Elective Neck Dissection in Node-Negative Early-Stage Oral Squamous Cell Carcinoma: A Retrospective Cohort Study.

Oral diseases·2026

Same author

The Efficacy and Safety of Etrasimod in Mildly to Moderately Active Ulcerative Colitis: Results From the Phase II GLADIATOR Trial.

Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association·2026

Search research articles

Related Experiment Video

Updated: Dec 28, 2025

Diffuse Reflectance Spectroscopy: Getting the Capillary Refill Test Under One's Thumb

Diffuse Reflectance Spectroscopy: Getting the Capillary Refill Test Under One's Thumb

Published on: December 2, 2017

Modified RGB Cameras for Infrared Remote-PPG.

Wenjin Wang, Albertus C den Brinker

IEEE Transactions on Bio-Medical Engineering

|February 20, 2020

Summary

Researchers modified RGB cameras for near-infrared photoplethysmography (NIR-PPG). This cost-effective method achieves pulse-rate extraction performance comparable to specialized NIR cameras.

Area of Science:

Biomedical Engineering
Optical Sensing
Remote Physiological Monitoring

Background:

Multi-wavelength cameras are crucial for remote photoplethysmography (PPG).
Near-infrared (NIR) cameras for PPG are not as readily available as visible light cameras.
Existing RGB cameras lack inherent NIR sensitivity for PPG applications.

Purpose of the Study:

To propose a method for modifying existing RGB cameras for effective NIR-PPG.
To develop a cost-effective and simple solution for NIR-PPG camera accessibility.
To achieve pulse-rate extraction performance comparable to dedicated NIR systems.

Main Methods:

Exploiting the spectral leakage of RGB camera channels into the infrared spectrum.
Integrating a narrow dual-band optical filter with modified RGB cameras.

More Related Videos

RGB and Spectral Root Imaging for Plant Phenotyping and Physiological Research: Experimental Setup and Imaging Protocols

RGB and Spectral Root Imaging for Plant Phenotyping and Physiological Research: Experimental Setup and Imaging Protocols

Published on: August 8, 2017

Multi-Fiber Photometry to Record Neural Activity in Freely-Moving Animals

Multi-Fiber Photometry to Record Neural Activity in Freely-Moving Animals

Published on: October 20, 2019

Related Experiment Videos

Last Updated: Dec 28, 2025

Diffuse Reflectance Spectroscopy: Getting the Capillary Refill Test Under One's Thumb

Diffuse Reflectance Spectroscopy: Getting the Capillary Refill Test Under One's Thumb

Published on: December 2, 2017

RGB and Spectral Root Imaging for Plant Phenotyping and Physiological Research: Experimental Setup and Imaging Protocols

RGB and Spectral Root Imaging for Plant Phenotyping and Physiological Research: Experimental Setup and Imaging Protocols

Published on: August 8, 2017

Multi-Fiber Photometry to Record Neural Activity in Freely-Moving Animals

Multi-Fiber Photometry to Record Neural Activity in Freely-Moving Animals

Published on: October 20, 2019

Utilizing the modified camera setup for remote photoplethysmography signal acquisition.

Main Results:

Demonstrated successful modification of standard RGB cameras for NIR-PPG.
Achieved pulse-rate extraction performance comparable to multiple narrow-band NIR cameras.
The proposed method is simple, cost-effective, and easy to implement.

Conclusions:

Modified RGB cameras offer a viable and accessible alternative for NIR-PPG.
The technique provides a practical solution to the limited availability of NIR cameras.
This approach enables widespread application of NIR-PPG technology.