Type

Journal Article

Authors

Tomas Ward
Charles Markham
Kenneth Humphreys

Subjects

Computer Science

Topics
near infrared camera optical clinical applications cmos electronic engineering blood flow management

A CMOS camera-based system for clinical photoplethysmographic applications (2005)

Abstract In this work an-image based photoplethysmography (PPG) system is developed and tested against a conventional fingerbased system as commonly used in clinical practise. A PPG is essentially an optical instrument consisting of a near infrared (NIR) source and detector that is capable of tracking blood flow changes in body tissue. When used with a number of wavelengths in the NIR band blood oxygenation changes as well as other blood chemical signatures can be ascertained yielding a very useful device in the clinical realm. Conventionally such a device requires direct contact with the tissue under investigation which eliminates the possibility of its use for applications like wound management where the tissue oxygenation measurement could be extremely useful. To circumnavigate this shortcoming we have developed a CMOS camera-based system, which can successfully extract the PPG signal without contact with the tissue under investigation. A comparison of our results with conventional techniques has yielded excellent results.
Collections Ireland -> Maynooth University -> Subject = Science & Engineering: Electronic Engineering
Ireland -> Maynooth University -> Subject = Science & Engineering
Ireland -> Maynooth University -> Type = Article
Ireland -> Maynooth University -> Academic Unit = Faculty of Science and Engineering
Ireland -> Maynooth University -> Academic Unit = Faculty of Science and Engineering: Electronic Engineering
Ireland -> Maynooth University -> Status = Published
Ireland -> Maynooth University -> Open Access DRIVERset

Full list of authors on original publication

Tomas Ward, Charles Markham, Kenneth Humphreys

Experts in our system

1
Tomas Ward
Maynooth University
Total Publications: 189
 
2
Charles Markham
Maynooth University
Total Publications: 64