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Non-contact heart rate measurement method based on image signal analysis

A non-contact, image signal technology, applied in the measurement of pulse rate/heart rate, diagnostic record/measurement, medical science, etc., can solve the problem that the heart rate detection method is not convenient and fast, and achieve the effect of high accuracy

Inactive Publication Date: 2019-03-19
王桥生
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  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a non-contact heart rate measurement method based on image signal analysis, which aims to solve the technical problem that the existing heart rate detection method is not convenient and quick

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  • Non-contact heart rate measurement method based on image signal analysis

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Embodiment Construction

[0026] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the technical solutions in the specific embodiments of the present invention are clearly and completely described below to further illustrate the present invention. Obviously, the described specific implementation The form is only a part of embodiment of this invention, and it is not all form.

[0027] like figure 1 as shown, figure 1 It is a flowchart of a specific embodiment of the non-contact heart rate measurement method based on image signal analysis of the present invention.

[0028] The specific steps of the non-contact heart rate measurement method based on image signal analysis are:

[0029] In step S1, the face video of the detected person is obtained in real time through a camera or a camera, and then an unprocessed pulse signal is extracted from the face video of the detected person.

[0030] Among them, the skin color of the fa...

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Abstract

The invention discloses a non-contact heart rate measurement method based on image signal analysis. The method specifically comprises the following steps of S1, obtaining a face video in real time through a camera or a webcam and then extracting unprocessed pulse signals from the face video; S2, preprocessing the unprocessed pulse signals in S1 and then obtaining an HR frequency by means of a Welch power spectrum density estimation method; S3, taking the HR frequency fHR in S2 to calculate a current heart rate. By means of the method, a real object needs to be photographed by the camera, and in combination with corresponding calculation and collection methods, the current heart rate of an examinee can be obtained quickly and accurately; moreover, a non-contact mode is adopted so that the long-distance heart rate collection can be achieved, there is no need to go to a hospital to wait in line, and the method is very convenient.

Description

technical field [0001] The invention belongs to the fields of pattern recognition, machine vision and signal processing, and in particular relates to a non-contact heart rate measurement method based on image signal analysis. Background technique [0002] Heart rate refers to the number of heartbeats per minute of a normal person in a quiet state, also known as resting heart rate, generally 60 to 100 beats per minute, which may vary among individuals due to age, gender or other physiological factors. Generally speaking, the younger you are, the faster your heart rate is, the heart rate of the elderly is slower than that of the young, and the heart rate of women is faster than that of men of the same age. These are normal physiological phenomena. In a quiet state, the normal heart rate of an adult is 60-100 beats / min, and the ideal heart rate should be 55-70 beats / min (the heart rate of athletes is slower than that of ordinary adults, generally around 50 beats / min). [0003]...

Claims

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Application Information

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IPC IPC(8): A61B5/024
CPCA61B5/02416
Inventor 王桥生王水龙彭波郭婧
Owner 王桥生