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Video-based non-invasive heart rate measurement method

A measurement method and heart rate technology, which is applied in the measurement of pulse rate/heart rate, diagnostic records/measurement, medical science, etc., can solve the problems of weak feature representation ability and multiple false detections, and achieve improved face detection rate and strong real-time performance , the effect of improving accuracy

Inactive Publication Date: 2019-09-17
云南东巴文健康管理有限公司
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Problems solved by technology

The weak features of the face in the AdaBoost algorithm are represented by the Haar feature. The Haar feature has the advantage of simple calculation, but its disadvantage is that the feature representation ability is relatively weak, so it is easy to bring more false detections to a certain extent.

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  • Video-based non-invasive heart rate measurement method

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[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the implementation of the present invention Examples, not all of the embodiments; based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work, all belong to the protection scope of the present invention.

[0027] The invention provides a method for measuring non-invasive heart rate based on video, comprising the following steps:

[0028] S1: Use a device with a camera function to collect a video image of the face to be tested; the device with a camera function includes a mobile phone, a camera, or other devices with a camera. When collecting a video image of a face, the distanc...

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Abstract

The present invention discloses a video-based non-invasive heart rate measurement method. An improved Euler image enlargement method is used to amplify weak signals of human faces to facilitate signal extraction; a MTCNN face detection algorithm with relatively strong real-time capability and relatively high detection rate is used to improve a human face detection rate, fast in detection speed and stronger in the real-time capability; and the method combines G signals as input signals of heart rate calculation, improves heart rate signal accuracy, finally realizes accurate and rapid non-sense and non-invasive measurement of heart rate, and provides basis for subsequent real-time measurement and medical diagnosis for human blood pressure.

Description

technical field [0001] The invention relates to a video-based non-invasive heart rate measurement method, which belongs to the technical field of precise measurement of physiological characteristics. Background technique [0002] Hypertension is one of the main diseases in our country. The current blood pressure measurement methods are mainly divided into two types: invasive measurement and non-invasive measurement. The invasive measurement method is to insert the pressure sensor into the arterial blood vessel for direct measurement, which has certain damage to human blood vessels and skin. , it is mainly used clinically for critically ill patients; non-invasive measurement methods mainly include Korotkoff sound method, oscillometric method, arterial tension measurement method, pulse wave measurement method, etc. The non-invasive measurement method has the advantages of simple operation and no harm to the human body. Scientific and technological workers have carried out exte...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/024
CPCA61B5/0077A61B5/024
Inventor 杨玺胡春和杨兆煜
Owner 云南东巴文健康管理有限公司