Toward the development of screening system for sleep apnea syndrome using the Microsoft Kinect sensor: A primary study of extracted pulse wave

Abstract

Screening test for sleep apnea syndrome using pulse oximetry is often performed at home. However, the subjects with a sensor probe have a harmful influence on the quality of sleep. In our previous reports, we have confirmed that there is a good correlation between the brightness variation (BV) signal of RGB camera by the Microsoft Kinect for Windows (Kinect v1) and the digital pulse volume by photo-plethysmography. Recently, Microsoft has released the Kinect for Windows v2 (Kinect v2), which much improved the resolution of RGB camera and the accuracy of depth sensor. The present study concerns with determination of a region of interest using Kinect v2. Moreover, we have also evaluated the impact of BV signal on the movement of the body surface. Consequently, the cheek is suitable for measurement. In addition, it seems to be considered that there is no effect of body motion for BV signal.