Title
Efficient computation of image moments for robust cough detection using smartphones.
Abstract
Health Monitoring apps for smartphones have the potential to improve quality of life and decrease the cost of health services. However, they have failed to live up to expectation in the context of respiratory disease. This is in part due to poor objective measurements of symptoms such as cough. Real-time cough detection using smartphones faces two main challenges namely, the necessity of dealing with noisy input signals, and the need of the algorithms to be computationally efficient, since a high battery consumption would prevent patients from using them. This paper proposes a robust and efficient smartphone-based cough detection system able to keep the phone battery consumption below 25% (16% if only the detector is considered) during 24 h use. The proposed system efficiently calculates local image moments over audio spectrograms to feed an optimized classifier for final cough detection. Our system achieves 88.94% sensitivity and 98.64% specificity in noisy environments with a 5500× speed-up and 4× battery saving compared to the baseline implementation. Power consumption is also reduced by a minimum factor of 6 compared to existing optimized systems in the literature.
Year
DOI
Venue
2018
10.1016/j.compbiomed.2018.07.003
Computers in Biology and Medicine
Keywords
Field
DocType
Event detection,Cough detection,Mobile health,Moment theory,Optimization
Computer vision,Spectrogram,Computer science,Real-time computing,Phone,Artificial intelligence,Battery (electricity),Classifier (linguistics),Image moment,Detector,Computation,Power consumption
Journal
Volume
ISSN
Citations 
100
0010-4825
0
PageRank 
References 
Authors
0.34
13
5