Wenjing WANG,Albertus Cornelis DEN BRINKER,Gerard DE HAAN
申请号：
US16637284
公开号：
US20200178809A1
申请日:
2018.08.01
申请国别(地区):
US
年份:
2020
代理人:
摘要：
The application relates to camera-based vital signs monitoring using remote PPG. A Device (10) for determining a physiological parameter comprises: an interface (11) for receiving image data comprising a time-sequence of image frames； a processor (12) for processing said data and configured to perform, for each frame, the steps of: generating a set of weighting maps comprising at least a first and second weighting map for spatially weighting pixels of the frame (102)； determining a first weighted image frame by spatially weighting pixels of the image frame based on the first weighting map (103)； determining a corresponding second weighted image frame； determining a first statistical parameter value based on the first weighted image frame (105)； determining a corresponding second statistical parameter value； concatenating said first statistical parameter values over time based on the time-sequence of the corresponding image frames to obtain a first candidate signal (107)； to obtain a corresponding second candidate signal (108)； extracting a physiological parameter of the subject based on said first and/or said second candidate signal (109).
