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Long-time continuous non-contact heart rate measurement method and system

A non-contact, continuous technology used in pulse/heart rate measurement, diagnostic recording/measurement, medical science, etc.

Active Publication Date: 2020-12-04
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention provides a long-term continuous non-contact heart rate measurement method and system, which solves the problem that the existing non-contact heart rate monitoring technology cannot perform accurate long-term continuous heart rate monitoring

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  • Long-time continuous non-contact heart rate measurement method and system
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  • Long-time continuous non-contact heart rate measurement method and system

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Embodiment 1

[0125] figure 1 It is an overall flowchart of a long-term continuous non-contact heart rate measurement method according to an embodiment of the present invention, see figure 1 , in a preferred embodiment of the present invention, the implementation process of a long-time continuous non-contact heart rate measurement method includes:

[0126] S1. Obtain the brightness information of the green channel in the RGB brightness information of the original image.

[0127] With the change of the heartbeat of the person whose heart rate is to be detected, the blood flow in the face will change with the change of the heartbeat, and this blood flow will cause the change of the face color. Therefore, as long as the color change is effectively detected, theoretically Extract the heart rate value from the cycle of color changes. Based on the implementation principle of the non-contact heart rate measurement method, when obtaining the brightness information of the green channel in the RGB ...

Embodiment 2

[0165] In addition, the embodiment of the present invention also proposes a long-time continuous non-contact heart rate measurement system, the system includes a memory, a processor, and a computer program stored in the memory and operable on the processor, the processing implement the steps of the above method when the computer program is executed by a computer.

[0166] It can be understood that the long-time continuous non-contact heart rate measurement system provided by the embodiment of the present invention corresponds to the above-mentioned long-time continuous non-contact heart rate measurement method, and the explanations, examples, beneficial effects and other parts of the relevant content Reference can be made to the corresponding content in a long-time continuous non-contact heart rate measurement method, which will not be repeated here.

[0167] In summary, compared with the prior art, it has the following beneficial effects:

[0168]1. After the present inventi...

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Abstract

The invention provides a long-time continuous non-contact heart rate measurement method and system, and relates to the technical field of heart rate detection. The method comprises the steps of acquiring brightness information of a green channel in original image RGB brightness information of a person of which the heart rate is to be measured, performing wavelet transformation, then obtaining instantaneous frequency spectrum of the person, obtaining the heart rate frequency characteristic maximum value at each moment according to the instantaneous frequency spectrum, and estimating the measurement variance of the heart rate frequency characteristic maximum value; and finally, substituting the spectrum distribution characteristics into a Kalman filter to estimate the heart rate so as to finally obtain the heart rate value of the person of which the heart rate is to be measured. According to the invention, wavelet transform is performed on the brightness information of the green channelin the original image RGB brightness information, and the data filtering processing of the Kalman filter is combined and applied, so that the problem that the existing non-contact heart rate monitoring technology cannot realize accurate long-time continuous heart rate monitoring is solved; and the requirement for long-time continuous non-contact heart rate monitoring of a person of which the heartrate is to be detected in the sleeping, exercising and other processes is met.

Description

technical field [0001] The invention relates to the technical field of heart rate detection, in particular to a long-time continuous non-contact heart rate measurement method and system. Background technique [0002] Heart rate is an important physiological parameter that reflects the physiological and emotional activities of the human body. The measurement of heart rate can be used for training assistance, health monitoring and clinical care. At present, heart rate monitoring is mainly divided into contact heart rate monitoring and non-contact heart rate monitoring. Although contact heart rate monitoring (such as: patch heart rate detector) has high precision, it must be in contact with the human body when it is used. Or there is radiation, which will cause great inconvenience to special groups such as newborn babies or severe surgical patients in heart rate monitoring, and non-contact heart rate monitoring can well avoid these problems. [0003] Non-contact heart rate mon...

Claims

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Application Information

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IPC IPC(8): A61B5/024
CPCA61B5/024A61B5/0077A61B5/0082A61B5/0033A61B5/725A61B5/726A61B5/7203
Inventor 李霄剑黄宵剑方进丁帅李玲岳子杰
Owner HEFEI UNIV OF TECH