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Non-contact motion robust heart rate measuring method and measuring device

A non-contact, measurement method technology, applied in pulse rate/heart rate measurement, diagnostic recording/measurement, medical science, etc., can solve the problems of signal interference, high cost, restrict the subject's range of activities, etc., and achieve robust performance. , Improve the estimation accuracy, and meet the effect of long-term accurate heart rate signal monitoring

Pending Publication Date: 2022-05-31
SHANGHAI JIAO TONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These interlaced wires limit the subject's range of motion. Once the subject does not cooperate with the measurement or the movement range is large, the recording effect of the polygraph will be greatly reduced.
In addition, due to the high cost of the device and the inconvenience in actual use, it is difficult to popularize it on a large scale.
[0005] Second, the direct use of the "polygraph" is not concealed, and the anti-interference ability to sports is not strong
However, in actual situations, people do not necessarily rely on cushions and the movement of the human body will seriously interfere with the collected signals, and the reliability of the obtained physiological signals is not high.

Method used

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  • Non-contact motion robust heart rate measuring method and measuring device
  • Non-contact motion robust heart rate measuring method and measuring device
  • Non-contact motion robust heart rate measuring method and measuring device

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Step S202: applying an efficient convolution operator (correlation filtering algorithm) to track the target face. ring with y

[0059]

[0060] wherein the filter template w is constructed by a loss function, and using Gauss-Newton method (Gauss-Newton) and conjugate

[0061] Step S203: perform face landmark detection on the framed face.

[0063] Step S204: Kalman filtering is performed on the obtained face landmark coordinates to achieve motion correction.

[0067]

[0071] Step S102, collecting the original shock cardiac signal, and performing maximum overlapping discrete wavelets on the original shock cardiac signal

[0073]

[0074]

[0075] Among them, j represents the order of the above coefficients. and are the high-pass and low-pass filter operators, respectively. by multiple points

[0076]

[0077]

[0078] In step S103, the obtained shock cardiac signal and the remote photoplethysmography signal are fused.

[0084] The input signal is defined as u[n, j], where ...

Embodiment 2

domain, calculating a remote photovolumetric signal based on the region of interest;

Shock signal decomposition module, for carrying out maximum overlap separation on the original shock signal collected by the fiber optic cushion

Dispersive wavelet decomposition, representing the cardiac shock signal with the decomposed sub-components related to heart rate;

[0114] The heart rate calculation module is used to obtain the heart rate based on the fusion calculation of the cardiac shock signal and the remote photovolume signal.

[0115] The above-mentioned device of the present invention can be conveniently applied to the measurement of the physiological signal of the subject. The present invention adopts non-contact and non-conductive

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Abstract

The invention relates to a non-contact type motion robust heart rate measuring method and device. The method comprises the following steps that an original heart impact signal and a face image sequence are collected; extracting a region of interest in the face image sequence, and calculating a remote photoelectric volume signal based on the region of interest; performing maximum overlapping discrete wavelet decomposition on the original heart impact signal, and representing the heart impact signal by using decomposed sub-components related to the heart rate; the heart rate is calculated based on fusion of the ballistocardiogram signal and the remote photoplethysmograph signal. Compared with the prior art, the method has the advantages of high estimation accuracy, low cost, convenience in use and the like.

Description

A non-contact motion robust heart rate measurement method and measurement device technical field The present invention relates to a kind of heart rate detection technology, especially relate to a kind of non-contact motion robust heart rate measurement method and measuring devices. Background technique Human physiological signal is a kind of important "information", by monitoring the change of physiological index to judge whether the subject is tested Sensitive to key issues, better access to needed information. Therefore, accurate and real-time acquisition of these physiological signals points necessary. In modern neurobiology and criminal investigation psychology, it is believed that when people are in a state of tension and lying, physiological signals Specific changes occur that are not subject to human control. For example, when a person is lying, the person will often experience increased heart rate and breathing rate. Increased breathing rate, slowing do...

Claims

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Application Information

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IPC IPC(8): A61B5/024A61B5/11A61B5/1455A61B5/00
CPCA61B5/0077A61B5/1102A61B5/02416A61B5/7225A61B5/725A61B5/7203A61B5/14551
Inventor 秦斌杰刘一明
Owner SHANGHAI JIAO TONG UNIV
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