IPPG-based human body vital sign perception system

A vital sign and sensing system technology, applied in the field of human vital sign sensing system, can solve problems such as discomfort of subjects, inapplicability to burn patients or newborns, and aggravate the risk of illness of testing personnel, achieving low cost and low cost , the effect of easy operation

Pending Publication Date: 2020-09-29
CHANGCHUN UNIV OF SCI & TECH
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Problems solved by technology

[0005] The purpose of the present invention is to propose a human body vital sign perception system based on IPPG, which solves the problem that the existing physiological parameter detection methods all need to have direct contact with the skin of the tested person, which is not suitable for burns and scald patients or newborns, and it is easy to cause burns and scalds when used for a long time. Issues such as discomfort of the subjects and contact with patients with infectious diseases will increase the risk of illness of the testers

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  • IPPG-based human body vital sign perception system
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  • IPPG-based human body vital sign perception system

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Embodiment Construction

[0038] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0039] See attached figure 1 - attached Figure 5 , the IPPG-based human vital signs perception system of the present invention includes an image preprocessing module, an IPPG signal acquisition module, an IPPG signal processing module and a physiological parameter calculation module; the face video is processed by the image preprocessing module, and each frame of the video is extracted The face region of interest (ROI) of the picture; through the IPPG signal acquisition module, the ROI area of ​​each frame of the picture is separated into RGB channels, and the gray value of the ROI area is calculated for the separated three color space sequence pictures, and the RGB three-color channels are obtained. Three IPPG curves of the three IPPG curves; the improved IPPG signals are obtained by processing the three IPPG curves through the IPPG signal processing ...

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Abstract

The invention discloses an IPPG-based human body vital sign perception system, belonging to the technical field of physiological parameter detection. The objective of the invention is to solve the problems that conventional physiological parameter detection means need to be in direct contact with the skin of a detected person, are not applicable to burned and scalded patients or newborns, easily cause discomfort of subjects after long-time use, can aggravate the illness risk of detection personnel when the patients are in contact with infectious diseases, etc. According to the invention, a face video is processed through an image preprocessing module, and an ROI area of each frame of a picture of the video is obtained by extraction; RGB channel separation is carried out on the ROI area ofeach frame of the picture through an IPPG signal acquisition module, and the gray average of the ROI areas of three separated color space sequence pictures is calculated to obtain three IPPG curves ofRGB three-color channels; the three IPPG curves are processed through an IPPG signal processing module to obtain an improved IPPG signal; and the physiological parameter calculation module calculatesa heart rate and a respiration rate according to the IPPG signal improved by a green channel, and a oxyhemoglobin saturation value is calculated according to the IPPG signal improved by red and bluechannels.

Description

technical field [0001] The invention belongs to the technical field of physiological parameter detection, and in particular relates to an IPPG-based human vital sign sensing system. Background technique [0002] With the change of people's life and work style and the aggravation of population aging trend, cardiovascular disease is increasingly characterized by high morbidity, high mortality and multiple complications, and has become the number one killer threatening human health. Coupled with the aggravation of air pollution and the impact of poor work and rest patterns, the number of people suffering from respiratory diseases has increased significantly. Heart rate, blood oxygen saturation and respiratory rate, as physiological parameters to measure human health, are three important indicators for the detection and clinical diagnosis of cardiovascular and respiratory diseases. Real-time monitoring of physiological parameters such as heart rate, respiratory rate and blood o...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/0205A61B5/00G06K9/00G06K9/32G06K9/62G06T7/00A61B5/1455
CPCA61B5/0205A61B5/7203A61B5/7257G06T7/0012A61B5/024A61B5/0816A61B5/14551G06T2207/10016G06T2207/30201G06V40/161G06V10/25G06V2201/03G06F18/2134
Inventor 刘振瑶嵇晓强李炳霖王晓刚曲凯歌王美娇程揭章
Owner CHANGCHUN UNIV OF SCI & TECH
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