Sleep body position detection based on microphone array

Yewen Pu; Tingting Liu; Zhao Zhao; Zhiyong Xu

doi:10.1117/12.2631845

14 April 2022 Sleep body position detection based on microphone array

Yewen Pu, Tingting Liu, Zhao Zhao, Zhiyong Xu

Proceedings Volume 12178, International Conference on Signal Processing and Communication Technology (SPCT 2021); 121780Q (2022) https://doi.org/10.1117/12.2631845
Event: International Conference on Signal Processing and Communication Technology (SPCT 2021), 2021, Tianjin, China

Abstract

The existing monitoring technologies of obstructive sleep apnea/hypopnea syndrome (OSAHS) face many problems, such as invasion discomfort and privacy security. Aiming at these problems, non-contact microphone array technology is utilized in this work. Firstly, two microphones on both sides of the bedhead are used to synchronously acquire the snoring signals of the patient all night. Secondly, the high-band energy ratio (HER) and spatial cross-correlation deviation (SCCD) between the two array element channels are proposed as the spatial propagation features of snoring. Thirdly, the supine and lateral positions are indirectly recognized by the head orientation classification through unsupervised clustering, which provides a new feasible idea for the detection of sleep body positions.

Citation Download Citation

Yewen Pu, Tingting Liu, Zhao Zhao, and Zhiyong Xu "Sleep body position detection based on microphone array", Proc. SPIE 12178, International Conference on Signal Processing and Communication Technology (SPCT 2021), 121780Q (14 April 2022); https://doi.org/10.1117/12.2631845

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