Method for detecting human body physiological parameters on basis of infrared sequence image

Abstract

The invention provides a method for detecting human body physiological parameters on basis of an infrared sequence image. By the method, non-contact measurement on heart rate and breath is realized. The invention adopts the detailed technical scheme which comprises the following steps of: 1, building an infrared dynamic image acquisition system which consists of a forward looking infrared radar (FLIR) infrared long-wave sensor, a daheng image acquisition card and a video storage working station; 2, acquiring the infrared sequence image of a tested man by using the infrared dynamic image acquisition system, and filtering irregular movement of a head of the sequence image; 3, selecting temples as interesting areas, and extracting time sequence signals from the interesting areas by using a gravity method; 4, performing empirical mode decomposition on the extracted time sequence signals; and 5, performing spectral analysis on the result of the empirical mode decomposition, and identifying breath and heart rate signals. By the method, the non-contact measurement on heart rate and breath is realized by using the infrared sequence image. Therefore, the method has better application value in physiological feature monitoring in human face feature information identification and clinical surgery.

Description

technical field [0001] The invention relates to a method for detecting human physiological parameters by using infrared sequence images. By recording the infrared sequence images of the temples of the human face, and then combining the center of gravity method, empirical mode decomposition and autoregressive model spectrum analysis to realize signal extraction and recognition, and finally complete the non-destructive and non-contact measurement of breathing and heart rate. Background technique [0002] Breathing and heart rate are the most important physiological parameters of the human body. They reflect the physiological state and health information of the human body in real time. During the development of certain diseases, physiological parameters such as heart rate and breathing will change abnormally, but under normal conditions, especially in In the home environment, it is not easy for people to detect changes in their own breathing and heartbeat, so a convenient physi...

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Problems solved by technology

[0005] The above measurement methods are widely used in laboratories and hospitals, but in the home environment, ordinary people are not familiar with these measurement methods, the trouble in operation and the direct or indirect contact of these measurement methods with the human body may interfere with the measurement state. These factors limit the application of commonly used contact measurement methods in the home environment

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