发明名称 |
AUTOMATIC CAMERA ADJUSTMENT FOR REMOTE PHOTOPLETHYSMOGRAPHY |
摘要 |
The present invention relates to a device (12) for obtaining a vital sign of a subject (14), comprising an interface (22) for receiving a set of image frames (24) of a subject (14), a signal extraction unit (26) for extracting a photoplethysmographic (PPG) signal of the subject (14) from said set of image frames (24), a signal evaluation unit (28) for determining a feature of said PPG signal indicative of the information content of the extracted PPG signal with respect to a desired vital sign of the subject (14), a processing unit (30) for determining a binning configuration based on the determined feature of the extracted PPG signal, said binning configuration being provided for controlling binning of image pixels of an image frame; and a vital signs determination unit (32) for determining vital sign information from the extracted PPG signal. |
申请公布号 |
US2016235312(A1) |
申请公布日期 |
2016.08.18 |
申请号 |
US201415029271 |
申请日期 |
2014.09.28 |
申请人 |
KONINKLIJKE PHILIPS N.V. |
发明人 |
JEANNE Vincent;STERKEN Hendrikus Petrus Maria |
分类号 |
A61B5/024;A61B5/00 |
主分类号 |
A61B5/024 |
代理机构 |
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代理人 |
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主权项 |
1. A device for obtaining a vital sign of a subject, comprising
an interface for receiving a set of image frames of a subject, an image frame including a plurality of image pixels having associated pixel values; a signal extraction unit for extracting a photoplethysmographic, PPG, signal of the subject from said set of image frames; a signal evaluation unit for determining a feature of said PPG signal indicative of the quality of the information content of the extracted PPG signal with respect to a desired vital sign of the subject; a processing unit for determining a binning configuration based on the determined feature of the extracted PPG signal and based on a lookup table including a number of binning configurations for different values of the determined feature of the extracted PPG signal or a continuous or discrete function thereof, said binning configuration being provided for controlling binning of image pixels of an image frame a binning unit for binning image pixels of an image frame based on the determined binning configuration to obtain a binned image frame, wherein the signal extraction unit is configured to extract the PPG signal from said binned image frames; and a vital signs determination unit for determining vital sign information from the extracted PPG signal. |
地址 |
Eindhoven NL |