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Portable heart rate monitoring device and heart rate monitoring method thereof

A heart rate monitoring and heart rate technology, applied in the field of biomedical engineering, can solve problems such as the influence of the average heart rate value, inaccurate measurement results, and the inability to describe the real-time change trend of the heart rate, and achieve the effect of reducing the impact of noise

Active Publication Date: 2020-03-06
BEIJING THUNISOFT INFORMATION TECH
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AI Technical Summary

Problems solved by technology

When the human body is running vigorously, the measurement results are also inaccurate
The heart rate value is the fitting of multiple calculation results within a period of time. Different fitting methods have a greater impact on the results. At present, most of them use the same weight average method, which cannot describe the real-time trend of heart rate changes in that period of time. At the same time, the abnormal The heart rate value (too large or too small) will also have a greater impact on the average heart rate value, which directly leads to the stability of the heart rate measurement value

Method used

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  • Portable heart rate monitoring device and heart rate monitoring method thereof
  • Portable heart rate monitoring device and heart rate monitoring method thereof
  • Portable heart rate monitoring device and heart rate monitoring method thereof

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Embodiment 1

[0062] The present invention utilizes the principle that the beating of the human body pulse will cause slight changes in the surface image of the face, and uses the change of the RGB in the stable area of ​​the face to be converted into the HSV space to calculate the heart rate, including the selection and tracking algorithm of the face image self-adaptive area of ​​interest, and the area of ​​interest. Channel selection and enhancement algorithm of HSV signal, real-time dynamic heart rate calculation method based on variable weight and abnormal heart rate value calculation method, etc. The present invention can calculate the heart rate in real time based on the camera, and can also calculate the heart rate corresponding to multiple people given a video, and can achieve real-time heart rate monitoring in multiple scenes based on the network camera.

[0063] This embodiment provides a heart rate monitoring method, the flow chart of which is as follows figure 1 shown, including...

Embodiment 2

[0102] This embodiment provides a portable heart rate monitoring device, including an acquisition module, a tracking module, a selection module and a calculation module;

[0103] Acquisition module: collect image frames in real time from the camera or video, obtain face images, and transmit the acquired face portraits to the tracking module;

[0104] Tracking module: used to locate and track the obtained face portrait;

[0105] Selection module: used to select the area of ​​interest of the face portrait;

[0106] Calculation module: the technology of heart rate calculation and abnormal heart rate value based on variable weight.

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Abstract

The invention discloses a portable heart rate monitoring device and a heart rate monitoring method thereof. The method comprises: collecting image frames from a camera or a video in real time, and detecting a face image; tracking and positioning the face portrait; selecting a region of interest of the face portrait by using a face image adaptive region of interest selection and tracking algorithm;performing heart rate calculation based on a weighting mode with a variable weight; performing abnormal heart rate value calculation. According to the invention, self-adaptive region-of-interest selection is carried out on the face image, the region-of-interest can be flexibly selected, the interfered region can be eliminated, and the accurate region-of-interest is selected according to the facial features of the to-be-detected person. Automatic channel selection is performed on HSV signals of a region of interest of a face image, and signals passing through a band-pass filter are enhanced byusing a signal enhancement algorithm so as to reduce the influence of noise.

Description

technical field [0001] The invention relates to the technical field of biomedical engineering, in particular to a portable heart rate monitoring device and a heart rate monitoring method thereof. Background technique [0002] With the rapid development of science and technology, more and more computer theoretical knowledge has been applied to the medical field for medical diagnosis and daily health monitoring, which has played a powerful auxiliary role in the progress of medicine. Heart rate is one of the indicators reflecting the health status of the human body, and it is also one of the most basic physiological indicators for judging cardiovascular diseases. In recent years, video image processing has been involved in the medical field and has been applied in various aspects such as medical diagnosis and daily health monitoring, especially in heart rate diagnosis and abnormal heart rate monitoring. [0003] Document 1 "Research on Heart Rate Measurement Method Based on Or...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/32
CPCG06V40/171G06V40/161G06V10/25
Inventor 沈来信孙明东王泽晶
Owner BEIJING THUNISOFT INFORMATION TECH
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