Towards Breathing as a Sensing Modality in Depth-Based Activity Recognition.

Sensors
Jochen Kempfle, Kristof Van Laerhoven

Abstract

Depth imaging has, through recent technological advances, become ubiquitous as products become smaller, more affordable, and more precise. Depth cameras have also emerged as a promising modality for activity recognition as they allow detection of users' body joints and postures. Increased resolutions have now enabled a novel use of depth cameras that facilitate more fine-grained activity descriptors: The remote detection of a person's breathing by picking up the small distance changes from the user's chest over time. We propose in this work a novel method to model chest elevation to robustly monitor a user's respiration, whenever users are sitting or standing, and facing the camera. The method is robust to users occasionally blocking their torso region and is able to provide meaningful breathing features to allow classification in activity recognition tasks. We illustrate that with this method, with specific activities such as paced-breathing meditating, performing breathing exercises, or post-exercise recovery, our model delivers a breathing accuracy that matches that of a commercial respiration chest monitor belt. Results show that the breathing rate can be detected with our method at an accuracy of 92 to 97% from a distance ...Continue Reading

References

Jun 3, 2008·The Medical Journal of Australia·Michelle A CretikosArthas Flabouris
Nov 13, 2009·IEEE Transactions on Information Technology in Biomedicine : a Publication of the IEEE Engineering in Medicine and Biology Society·Yung-Ming KuoPau-Choo Julia Chung
Jun 17, 2011·Emergency Nurse : the Journal of the RCN Accident and Emergency Nursing Association·Racheal Parkes
May 9, 2012·Medical Physics·Junyi Xia, R Alfredo Siochi
Sep 1, 2014·Healthcare Technology Letters·Flavia BenetazzoSauro Longhi
Dec 8, 2016·IEEE Transactions on Bio-medical Engineering·Vahid SoleimaniJason Viner
Feb 24, 2019·Sensors·Carlo MassaroniEmiliano Schena

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BETA
PCA

Software Mentioned

Kinect
Centinela
with
UbiBreathe
- Flow
Go
Kinect SDK
Med
TensorBeat
PP

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