id author title date pages extension mime words sentences flesch summary cache txt cord-293760-9mk2h2qf Takamoto, Hiroki Development and Clinical Application of a Novel Non-contact Early Airflow Limitation Screening System Using an Infrared Time-of-Flight Depth Image Sensor 2020-09-11 .txt text/plain 3960 198 48 Here, we developed a novel home-use non-contact early airflow limitation screening system (EAFL-SS) using an infrared timeof-flight (ToF) depth image sensor (integrated into several smartphones) that does not require calibration to the individual by a spirometer. Instead, a multiple linear regression analysis was used to achieve early airflow limitation screening without calibration to the individual by deriving a volume curve from the 3D motion of the anterior thorax measured by the ToF depth image sensor and the examinee's somatotypes [including height and body mass index (BMI)]. In addition, the distance from the EAFL-SS to the examinee was confirmed automatically to allow the accurate determination of a volume curve without calibration to FIGURE 1 | Exterior design of the early airflow limitation screening system (EAFL-SS), which includes an 850 nm infrared time-of-flight (ToF) depth image sensor for three-dimensional anterior-thorax motion measurement and an LCD display to provide instructions to the user. ./cache/cord-293760-9mk2h2qf.txt ./txt/cord-293760-9mk2h2qf.txt