US 11,771,380 B2
Vital sign monitoring system using an optical sensor
Yu Rong, Phoenix, AZ (US); and Daniel W. Bliss, Scottsdale, AZ (US)
Assigned to Arizona Board of Regents on behalf of Arizona State University, Scottsdale, AZ (US)
Filed by Yu Rong, Phoenix, AZ (US); and Daniel W. Bliss, Scottsdale, AZ (US)
Filed on Mar. 19, 2020, as Appl. No. 16/823,599.
Claims priority of provisional application 62/820,569, filed on Mar. 19, 2019.
Prior Publication US 2020/0297227 A1, Sep. 24, 2020
Int. Cl. G06K 9/00 (2022.01); A61B 5/24 (2021.01); A61B 5/00 (2006.01); A61B 5/08 (2006.01); A61B 5/1171 (2016.01); G06T 7/00 (2017.01); A61B 5/024 (2006.01); B64U 10/00 (2023.01)
CPC A61B 5/7282 (2013.01) [A61B 5/0075 (2013.01); A61B 5/0816 (2013.01); A61B 5/1176 (2013.01); A61B 5/444 (2013.01); A61B 5/6887 (2013.01); G06T 7/0012 (2013.01); A61B 5/02427 (2013.01); B64U 10/00 (2023.01)] 18 Claims
OG exemplary drawing
 
1. A method for remotely monitoring a physiological parameter, the method comprising:
sensing optical video data of a subject;
analyzing the optical video data to track color changes in a region of interest of the subject over a period of time;
identifying the region of interest on skin of the subject;
tracking movement of the region of interest across multiple frames of the optical video data; and
extracting physiological parameter data of the subject by adaptively beamforming the color changes.