IPPG-based human body vital sign perception system

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...

AI Technical Summary

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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