CN110236547A - The detection method of respiratory rate and the detection device detected for respiratory rate - Google Patents
The detection method of respiratory rate and the detection device detected for respiratory rate Download PDFInfo
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- CN110236547A CN110236547A CN201810194475.7A CN201810194475A CN110236547A CN 110236547 A CN110236547 A CN 110236547A CN 201810194475 A CN201810194475 A CN 201810194475A CN 110236547 A CN110236547 A CN 110236547A
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- label
- video frame
- respiratory rate
- distance
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/08—Detecting, measuring or recording devices for evaluating the respiratory organs
- A61B5/0816—Measuring devices for examining respiratory frequency
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2576/00—Medical imaging apparatus involving image processing or analysis
- A61B2576/02—Medical imaging apparatus involving image processing or analysis specially adapted for a particular organ or body part
Abstract
A kind of detection method of respiratory rate and detection device for respiratory rate detection, include the following steps: to provide the first label and the second label, the relative position of first label and second label with the breathing of tester and generating period changes；Obtain the video image of first label and second label change in location in tester's breathing；The video image is separated into the video frame using time order and function as sequence；Specific video frame is chosen, and identifies the position of the first label described in the video frame of each selection with second label；The distance between the first label described in the video frame of each selection and second label are measured, and forms time-distance graph figure；The period of the time-distance graph figure is counted within the specific time.Detection method application is simple, and cost is relatively low, and can relatively accurately detect to the respiratory rate of tester.
Description
Technical field
The present invention relates to medical treatment detection device field, the detection method and application breathing frequency of especially a kind of respiratory rate
The detection method of rate carries out the detection device of respiratory rate detection.
Background technique
One of an important factor for breathing is measurement Human Physiology health indicator.The detection of respiratory rate is to cat fever, cough
It coughs, the respiratory diseases such as asthma, tuberculosis, heart disease, sleep apnea syndrome are of great significance.
In the prior art, the detection mode of respiratory rate mainly has contact type measurement method and non-contact type measuring method.?
In contact type measurement method, gauger is needed to carry, binding or stickup breathe class sensor to corresponding physical feeling, the sensor
Route arrangement it is complicated so that data transmission, power supply, measurement are all inconvenient, and higher cost.
Contactless measurement is that doctor observes tester one minute thorax fluctuating number or using cotton silk
At tester nostril, the variation of observation cotton silk, to detect respiratory rate.Although this kind of measurement method is more simple
Just, it but is easy to be interfered, measurement inaccuracy.
Summary of the invention
In view of this, the present invention provides the detection methods of a kind of detection method of respiratory rate and the application respiratory rate
The detection device of respiratory rate detection is carried out, detection method application is simple, and cost is relatively low, and can be relatively accurately to test
The respiratory rate of person detects.
The present invention provides a kind of detection methods of respiratory rate, include the following steps:
The first label and the second label are provided, described first marks with the relative position of second label with tester's
It breathes and generating period variation；
Obtain the video image of first label and second label change in location in tester's breathing；
The video image is separated into the video frame using time order and function as sequence；
Specific video frame is chosen, and identifies the first label described in the video frame of each selection and second mark
The position of note；
The distance between the first label described in the video frame of each selection and second label are measured, and is formed
Time-distance graph figure；
The period of the time-distance graph figure is counted within the specific time.
Further, at least it is described first label and it is described second label one of position exhaling with tester
It inhales and the variation of generating period.
Further, first label and second label are located between the nostril and mouth of tester, and described the
One label forms a free end, position generating period variation with the air-flow that tester's breathing generates of the free end.
Further, it is described first label with it is described second label with the tester breathe when body movement and
Movement.
Further, first label and second label are individually fixed in the left chest and right chest of human body, or
Person is individually fixed in the two sides of the wing of nose.
Further, specific video frame is being chosen, and is identifying the first label described in the video frame of each selection
After the step of the position of second label, this method further includes, and fisrt feature point is extracted on first label, in institute
State on the second label extraction second feature point, by measure fisrt feature point described in the video frame of each selection with it is described
The distance between second feature point, to obtain the distance between first label and second label.
Further, it is sequence with time order and function, identifies the position of the first label and the second label in each video frame；So
After measure described in each video frame the distance between the first label and second label, and m- distance is bent when being formed
Line chart；Finally the period of the time-distance graph figure is counted within the specific time.
The present invention also provides it is a kind of for respiratory rate detection detection device, including first label and second label,
Relative position between first label and second label can do cyclically-varying with the breathing of tester；
Image acquisition unit, described image acquiring unit obtains first label and second label is exhaled in tester
The video image of change in location when suction；
And the video image is separated into the video using time order and function as sequence by processing unit, the processing unit
Frame chooses the specific video frame, and identifies the first label described in the video frame of each selection and second mark
The position of note；It measures in the video frame of each selection, the distance between first label and second label, and shape
At time-distance graph figure；The period of time-distance graph figure is counted in specific time.
Further, which further includes marker slip, and first label is formed in same described with second label
On two opposite edges of marker slip, the thickness of one end on the marker slip where the first label is less than where the second label
The thickness of one end.
Further, which further includes marker slip, and first label is respectively formed in two with second label
On the independent marker slip.
It is total described, pass through distance between marking to the first label in the particular video frequency frame selected and second in the present invention
Measurement, be able to reflect out first label and second label between distance variation tendency, even if in certain video frames, due to
The distance between certain labels of reason first and the second label can not reflect the breath state of tester, still, the test side
Method is to count from overall trend to the respiratory rate of tester, this can be relatively accurately to the respiratory rate of tester
Detected, due in test, it is only necessary to fix the positions of two labels, therefore, this method application is simple, and cost compared with
It is low.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And it can be implemented in accordance with the contents of the specification, and in order to allow above and other objects, features and advantages of the invention can
It is clearer and more comprehensible, it is special below to lift preferred embodiment, and cooperate attached drawing, detailed description are as follows.
Detailed description of the invention
Fig. 1 is the schematic diagram of each step in the detection method of respiratory rate provided by the invention.
Fig. 2 is the first label and the second label in the first embodiment of the detection method of respiratory rate provided by the invention
Riding position schematic diagram.
Fig. 3 is the positional diagram between marker slip and fixinig plate in the first embodiment of the invention.
Fig. 4 be first embodiment of the invention in, along time sequencing, in the image of each particular frame, first label and second
The positional diagram of label.
Fig. 5 is in first embodiment of the invention, along time sequencing, between the first label and the second label distance change when
M- distance Curve figure.
Fig. 6 is the first label and the second label in the second embodiment of the detection method of respiratory rate provided by the invention
Riding position schematic diagram.
Fig. 7 be second embodiment of the invention in, along time sequencing, in the image of each particular frame, first label and second
The positional diagram of label.
Fig. 8 is in second embodiment of the invention, along time sequencing, between the first label and the second label distance change when
M- distance Curve figure.
Fig. 9 is the system block diagram of detection device provided by the invention.
Specific embodiment
It is of the invention to reach the technical means and efficacy that predetermined goal of the invention is taken further to illustrate, below in conjunction with
Attached drawing and preferred embodiment, detailed description are as follows.
It is breathed the present invention provides a kind of detection method of respiratory rate and using the detection method of the respiratory rate
The detection device of frequency detecting, detection method application is simple, and cost is relatively low, and can be relatively accurately to the breathing of tester
Frequency is detected.
Fig. 1 is the schematic diagram of each step in the detection method of respiratory rate provided by the invention, as shown in Figure 1, of the invention
A kind of detection method of respiratory rate is provided, detection method includes the following steps for this:
There is provided first label and second label, first label with second label relative position can with the breathing of tester and
Generating period variation；
Obtain the video image of the first label and the second label change in location in tester's breathing；
Above-mentioned video image is separated into the video frame using time order and function as sequence；
Specific video frame is chosen, and identifies the position of the first label and the second label in the video frame of each selection；
M- distance is bent when measuring the distance between the first label and the second label in the video frame of each selection, and being formed
Line chart；
The period of time-distance graph figure is counted in specific time, to obtain the respiratory rate of tester.
Fig. 2 is the first label and the second label in the first embodiment of the detection method of respiratory rate provided by the invention
Riding position schematic diagram, Fig. 3 is the positional diagram between marker slip and fixinig plate in the first embodiment of the invention,
Fig. 4 be first embodiment of the invention in, along time sequencing, in the image of each particular frame, first label and second label position
Relation schematic diagram is set, Fig. 5 is in first embodiment of the invention, and along time sequencing, distance becomes between the first label and the second label
The time-distance graph figure of change.As shown in Figures 2 to 5, in the present embodiment, the first label 11 and the second label 12 are respectively provided with
Between the nostril and mouth of tester, the first label 11 forms a free end, and the position of the free end can be with tester
The air-flow that generates of breathing and generating period changes, the second label 12 is fixed on the human body of tester.
In the present embodiment, the first label 11 and the second label 12 all can be papery material, it is equally possible that being silk
Line or plastics etc..For the ease of the fixation of the first label 11 and the second label 12, the first label 11 and the second label 12 can be with shapes
At on two opposite edges of same marker slip 10, when fixed, the first label 11 compared to the second label 12 closer to
Nostril position.On marker slip 10 first label 11 thickness at one end less than the second label 12 thickness at one end, with
Just the air-flow that tester's respiratory generates is able to drive the movement of the first label 11, while fixes the second label 12 more stably
The corresponding position between nostril and mouth.As in the present embodiment, the width of marker slip 10 can be 40-60mm, highly can be with
For 20-40mm, on marker slip 10 first label 11 thickness at one end can be 0.03-0.08mm, in order to the gas of breathing
Stream is able to drive the movement of the first label 11, on marker slip 10 second label 12 thickness at one end can be 1-5mm.Such as Fig. 3
Shown, for the ease of the fixation of marker slip 10, marker slip 10 can be fixed on fixinig plate 20, the first label 11 on marker slip 10
The one end at place and fixinig plate 20 are in the angle less than 90 °, in order to which air-flow is able to drive the movement of the first label 11.In this implementation
In example, it highly can be 10-30mm that the width of fixinig plate 20, which can be 50-90mm,.
When fixing the first label 11 and the second label 12, first by fixinig plate 20 be attached at tester nostril and upper lip it
Between, then marker slip 10 is fixed on fixinig plate 20, and make the first label 11 compared to the second label 12 closer to nostril institute
Side.
The first label 11 and second is acquired during tester's breathing by video camera, preferably high-definition camera
The video image of video image namely marker slip 10 variation of label 12.In actual test, the respiration range of human body is substantially
It is one minute 16 to 44 times, in order to preferably get the variable condition of marker slip 10 in respiratory, video camera acquisition frame rate
Greater than 1fps, preferably 10fps, when video camera acquisition frame rate is 10fps, 600 can be collected within video camera one minute instead
The video frame for answering marker slip 10 to change.
The video of acquisition is separated, the video frame using time order and function as sequence is formed it into.
Identify the position of the first label 11 and the second label 12 in each video frame.It specifically, in the present embodiment, can be with
It is examined by canny edge detection operator, sobel edge detection operator, laplacian edge detection operator and the edge prewitt
The methods of measuring and calculating detects about 10 two edges of marker slip, the as position of the first label 11 and the second label 12.
It is to be appreciated that in other embodiments, specific video frame can also be chosen, a width such as is chosen at interval of 10 frames
Video frame, and the first label 11 in the video frame and the second label 12 are identified, to subtract under the premise of guaranteeing accuracy
Calculation amount when identifying less.
For the ease of the identification of the first label 11 and the second label 12, the color of marker slip 10 can be and ambient enviroment color
The biggish color of difference, such as white or black.
Further, for the ease of measuring to the distance between the first label 11 and the second label 12, the present invention is also
It may include fisrt feature point 111 and second feature point 121 being extracted on the first label 11 and the second label 12, in this implementation
In example, the midpoint of 10 top edge of marker slip can be extracted as fisrt feature point 111, extracted in 10 lower edge of marker slip
Point is used as second feature point 121.In the present embodiment, extracting for features described above point can be with the methods of being converted based on hough
Line segments extraction obtains.
(for the ease of expression, fisrt feature point 111 and the second spy in partial video frame are illustrated only in Fig. 3 as shown in Figure 4
Positional relationship between sign point 121), it measures in the video frame of each selection between fisrt feature point 111 and second feature point 121
Distance obtain time-distance graph figure and according to above-mentioned data.It, can during obtaining time-distance graph figure
To pass through the methods of time-domain filtering, frequency domain filtering gaussian filtering or median filtering to fisrt feature point 111 and second feature point 121
The distance between data handled, with smooth data plot.
Since the breathing of tester is the process to move in circles, after obtaining time-distance graph figure, such as
Shown in Fig. 5, which can be presented certain periodicity, by calculating the periodicity in specific time, such as the periodicity in 60s, i.e.,
The respiratory rate of tester can be obtained.
In the present embodiment, by distance between the first label 11 and the second label 12 in the particular video frequency frame selected
Measurement, is able to reflect out the variation tendency of distance between the first label 11 and the second label 12, even if in certain video frames, by
It can not reflect the breath state of tester in the distance between certain reason the first labels 11 and the second label 12, it still, should
Test method is to count from overall trend to the respiratory rate of tester, this can relatively accurately exhale tester
It inhales frequency to be detected, due in test, it is only necessary to the position of two labels is fixed, therefore, this method application is simple, and at
This is lower.
Fig. 6 is the first label and the second label in the second embodiment of the detection method of respiratory rate provided by the invention
Riding position schematic diagram, Fig. 7 be second embodiment of the invention in, along time sequencing, in the image of each particular frame, first mark
The positional diagram of note and the second label, Fig. 8 are in second embodiment of the invention, along time sequencing, the first label and the
The time-distance graph figure of distance change between two labels.The detection method for the respiratory rate that second embodiment of the invention provides
The method provided with first embodiment is essentially identical, the difference is that, in the present embodiment, the first label 11 and the second mark
Note 12 is two independent marker slips 10, and the first label 11 and the second label 12 are individually fixed in the left chest and right chest of tester
Portion, that is, the first label 11 and the second label 12 can be moved with the movement of body when tester breathes.Pass through video camera
The video of distance change between the first label 11 and the second label 12 is recorded, and the video image is analyzed, when obtaining
M- distance Curve figure, finally acquires the periodicity of the time-distance graph figure, to obtain the respiratory rate of tester.
It is to be appreciated that in the present embodiment, fisrt feature point 111 can be equally extracted in the first label 11, and
Second feature point 121 is extracted, in the second label 12 in order to the measurement of distance between the first label 11 and the second label 12.?
In the present embodiment, the extraction of features described above point can be obtained with the methods of the ellipses recognition converted based on hough.
In other embodiments, the position of the first label 11 and the second label 12 not only can be set in the left chest of tester
Portion and right chest can also can generate the position moved in abdomen or dilator naris etc., to make first when tester breathes
The distance between label 11 and the second label 12 change during tester breathes.Namely the breathing in tester
In, at least to guarantee that with the breathing of tester can occur for the position of one of the first label 11 and the second label 12 week
The variation of phase property.
Fig. 8 is the system block diagram of detection device provided by the invention, as shown in figure 8, the present invention also provides a kind of applications
The detection method of above-mentioned respiratory rate carries out the detection device of respiratory rate detection, which includes the first label 11, the
Two labels 12, video image acquiring unit 30 and processing unit 40, the first label 11 and the second label 12 are set to tester's
On body, the relative position between the first label 11 and the second label 12 can do cyclically-varying with the breathing of tester；
Video image acquiring unit 30 obtains the video head portrait of the first label 11 and the second label 12 change in location when tester breathes；
Above-mentioned video image is separated into the video frame using time order and function as sequence by processing unit 40, chooses specific video frame, and know
The position of first label 11 and the second label 12 in the video frame of not each selection；Then in the video frame for measuring each selection,
The distance between first label 11 and the second label 12, and form time-distance graph figure；The finally clock synchronization in specific time
The period of m- distance Curve figure is counted, to obtain the respiratory rate of tester.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this profession
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above make a little change or modification
It is right according to the technical essence of the invention for the equivalent embodiment of equivalent variations, but without departing from the technical solutions of the present invention
Any simple modification, equivalent change and modification made by above embodiments, all of which are still within the scope of the technical scheme of the invention.
Claims (10)
1. a kind of detection method of respiratory rate, characterized by the following steps:
The first label and the second label are provided, described first marks the breathing with the relative position of second label with tester
And generating period changes；
Obtain the video image of first label and second label change in location in tester's breathing；
The video image is separated into the video frame using time order and function as sequence；
Specific video frame is chosen, and identifies the first label described in the video frame of each selection and second label
Position；
When measuring the distance between the first label described in the video frame of each selection and second label, and being formed
M- distance Curve figure；
The period of the time-distance graph figure is counted within the specific time.
2. the detection method of respiratory rate as described in claim 1, it is characterised in that: at least described first label and described the
Position variation of generating period with the breathing of tester of one of two labels.
3. the detection method of respiratory rate as claimed in claim 2, it is characterised in that: first label and second mark
Note is located between the nostril and mouth of tester, and first label forms a free end, and the position of the free end is with test
Person breathes the air-flow generated and generating period changes.
4. the detection method of respiratory rate as claimed in claim 2, it is characterised in that: first label and second mark
Remember the movement of body when breathing with tester and moves.
5. the detection method of respiratory rate as claimed in claim 4, it is characterised in that: first label and second mark
Note is individually fixed in the left chest and right chest of human body, or is individually fixed in the two sides of the wing of nose.
6. the detection method of respiratory rate as described in claim 1, it is characterised in that: choosing specific video frame, and knowing
After the step of position of first label described in the video frame of not each selection and second label, this method is also wrapped
It includes, extracts fisrt feature point on first label, extract second feature point on second label, it is each by measuring
The distance between fisrt feature point and the second feature point described in the video frame chosen, to obtain first label
The distance between described second label.
7. the detection method of respiratory rate as described in claim 1, it is characterised in that: with time order and function for sequentially, identification is every
The position of first label and the second label in one video frame；Then measure described in each video frame the first label with it is described
The distance between second label, and form time-distance graph figure；Finally within the specific time to it is described when m- distance it is bent
The period of line chart is counted.
8. a kind of detection device for respiratory rate detection, it is characterised in that: including the first label and the second label, described the
Relative position between one label and second label can do cyclically-varying with the breathing of tester；
Image acquisition unit, described image acquiring unit obtain first label and second label in tester's breathing
The video image of change in location；And
The video image is separated into the video frame using time order and function as sequence by processing unit, the processing unit, is chosen special
The fixed video frame, and identify the position of the first label described in the video frame of each selection and second label；
Measure in the video frame of each selection, the distance between first label and second label, and while being formed it is m- away from
From curve graph；The period of time-distance graph figure is counted in specific time.
9. the detection device according to claim 8 for respiratory rate detection, it is characterised in that: the device further includes mark
Remember that piece, first label are formed on two opposite edges of the same marker slip with second label, the mark
Remember the thickness of one end where the label of on piece first less than the second label thickness at one end.
10. the detection device according to claim 8 for respiratory rate detection, it is characterised in that: the device further includes
Marker slip, first label are respectively formed on two independent marker slips with second label.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810194475.7A CN110236547B (en) | 2018-03-09 | 2018-03-09 | Method for detecting respiratory frequency |
| CN201811126359.8A CN110236548B (en) | 2018-03-09 | 2018-03-09 | Detection device for detecting respiratory frequency |
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| CN201810194475.7A CN110236547B (en) | 2018-03-09 | 2018-03-09 | Method for detecting respiratory frequency |
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| CN201811126359.8A Division CN110236548B (en) | 2018-03-09 | 2018-03-09 | Detection device for detecting respiratory frequency |
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| CN201810194475.7A Active CN110236547B (en) | 2018-03-09 | 2018-03-09 | Method for detecting respiratory frequency |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111839489A (en) * | 2020-05-26 | 2020-10-30 | 合肥工业大学 | Non-contact physiological and psychological health detection system |
| CN112515763A (en) * | 2020-11-27 | 2021-03-19 | 中国科学院深圳先进技术研究院 | Target positioning display method, system and device and electronic equipment |
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| US20070076935A1 (en) * | 1998-10-23 | 2007-04-05 | Andrew Jeung | Method and system for monitoring breathing activity of a subject |
| US20100125195A1 (en) * | 2008-11-19 | 2010-05-20 | Kajetan Berlinger | Determination of regions of an analytical image that are subject to vital movement |
| CN103857338A (en) * | 2011-10-20 | 2014-06-11 | 皇家飞利浦有限公司 | Device and method for monitoring movement and orientation of the device |
| CN105705089A (en) * | 2013-11-01 | 2016-06-22 | 皇家飞利浦有限公司 | System and method for determining vital sign information of a subject |
| CN107260173A (en) * | 2017-06-30 | 2017-10-20 | 大连理工大学 | A kind of breath measuring method based on camera Yu spherical label |
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| US20070076935A1 (en) * | 1998-10-23 | 2007-04-05 | Andrew Jeung | Method and system for monitoring breathing activity of a subject |
| US20100125195A1 (en) * | 2008-11-19 | 2010-05-20 | Kajetan Berlinger | Determination of regions of an analytical image that are subject to vital movement |
| CN103857338A (en) * | 2011-10-20 | 2014-06-11 | 皇家飞利浦有限公司 | Device and method for monitoring movement and orientation of the device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111839489A (en) * | 2020-05-26 | 2020-10-30 | 合肥工业大学 | Non-contact physiological and psychological health detection system |
| CN111839489B (en) * | 2020-05-26 | 2021-04-13 | 合肥工业大学 | Non-contact physiological and psychological health detection system |
| CN112515763A (en) * | 2020-11-27 | 2021-03-19 | 中国科学院深圳先进技术研究院 | Target positioning display method, system and device and electronic equipment |
| CN112515763B (en) * | 2020-11-27 | 2021-09-10 | 中国科学院深圳先进技术研究院 | Target positioning display method, system and device and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110236547B (en) | 2022-10-28 |
| CN110236548A (en) | 2019-09-17 |
| CN110236548B (en) | 2022-08-05 |
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