Non-contact breathing rate monitoring system using a magnification technique and convolutional networks

Jorge Brieva; Hiram Ponce; Ernesto Moya-Albor

doi:10.1117/12.2542336

3 January 2020 Non-contact breathing rate monitoring system using a magnification technique and convolutional networks

Jorge Brieva, Hiram Ponce, Ernesto Moya-Albor

Proceedings Volume 11330, 15th International Symposium on Medical Information Processing and Analysis; 113300P (2020) https://doi.org/10.1117/12.2542336
Event: 15th International Symposium on Medical Information Processing and Analysis, 2019, Medelin, Colombia

Abstract

In this paper, we present a new non-contact strategy to estimate the breathing rate based on the Eulerian motion video magnification technique and a system based on a Convolutional Neural Network (CNN). After the magnification procedure, a CNN is trained to detect the inhalation and exhalation frames in the video. From this classification, the respiratory rate is estimated. The magnification procedure was carried out using the Hermite decomposition. Two strategies are used as input to the CNN. A CNN-ROI proposal where a region of interest is selected manually on the image frame and in the second case, a CNN-Whole-Image proposal where the entire image frame is selected. Finally, the RR is estimated from the classified frames. The CNN-ROI proposal is tested on five subjects in lying face down position and it is compared to a procedure using different image processing steps to tag the frames as inhalation or exhalation. The mean average error in percentage obtained for this proposal is 2.326±1.144%. The CNN-whole-image proposal is tested on eight subjects in lying face down position. The mean average error in percentage obtained for this proposal is 2.115 ± 1.135%.

Citation Download Citation

Jorge Brieva, Hiram Ponce, and Ernesto Moya-Albor "Non-contact breathing rate monitoring system using a magnification technique and convolutional networks", Proc. SPIE 11330, 15th International Symposium on Medical Information Processing and Analysis, 113300P (3 January 2020); https://doi.org/10.1117/12.2542336

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