Advancements in Methods and Camera-Based Sensors for the Quantification of Respiration.

Haythem Rehouma,Sandrine Essouri,Philippe Jouvet,Rita Noumeir

doi:10.3390/s20247252

Abstract

Assessment of respiratory function allows early detection of potential disorders in the respiratory system and provides useful information for medical management. There is a wide range of applications for breathing assessment, from measurement systems in a clinical environment to applications involving athletes. Many studies on pulmonary function testing systems and breath monitoring have been conducted over the past few decades, and their results have the potential to broadly impact clinical practice. However, most of these works require physical contact with the patient to produce accurate and reliable measures of the respiratory function. There is still a significant shortcoming of non-contact measuring systems in their ability to fit into the clinical environment. The purpose of this paper is to provide a review of the current advances and systems in respiratory function assessment, particularly camera-based systems. A classification of the applicable research works is presented according to their techniques and recorded/quantified respiration parameters. In addition, the current solutions are discussed with regards to their direct applicability in different settings, such as clinical or home settings, highlighting their specific strengths and limitations in the different environments.

Highlights

Increased efforts have been made in developing effective respiratory measurement systems with action- and results-oriented goals, paving the way to new lines of research
The subject is requested to have a big breath and exhale the air through a mouthpiece attached to the spirometer, while having the nose pinched off
This highlights another important problem with spirometry, which is that critically ill patients could not endure a mouthpiece or a facemask [27]

Summary

Introduction

Chest wall motion assessment and physiological parameter monitoring are two essential caregivers’ clinical daily tasks They are key elements in managing patients with respiratory failure, whether this failure is due to chronic illness or to an acute pathology in the lungs, airway, or muscles, and to assess the impact of a therapy. The subject is requested to have a big breath and exhale the air through a mouthpiece attached to the spirometer, while having the nose pinched off This highlights another important problem with spirometry, which is that critically ill patients could not endure a mouthpiece or a facemask [27]. Non-contact methods have been of big interest to researchers and clinicians These methods aim to reduce or even eliminate the large number of sensors attached to a patient’s body to monitor breathing

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