CN108176033A - A kind of marathon runner's heart rate measurement and system for prompting and method - Google Patents
A kind of marathon runner's heart rate measurement and system for prompting and method Download PDFInfo
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- CN108176033A CN108176033A CN201810095131.0A CN201810095131A CN108176033A CN 108176033 A CN108176033 A CN 108176033A CN 201810095131 A CN201810095131 A CN 201810095131A CN 108176033 A CN108176033 A CN 108176033A
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
- A63B71/06—Indicating or scoring devices for games or players, or for other sports activities
- A63B71/0619—Displays, user interfaces and indicating devices, specially adapted for sport equipment, e.g. display mounted on treadmills
- A63B71/0622—Visual, audio or audio-visual systems for entertaining, instructing or motivating the user
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B69/00—Training appliances or apparatus for special sports
- A63B69/0028—Training appliances or apparatus for special sports for running, jogging or speed-walking
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
- A63B71/06—Indicating or scoring devices for games or players, or for other sports activities
- A63B71/0619—Displays, user interfaces and indicating devices, specially adapted for sport equipment, e.g. display mounted on treadmills
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B69/00—Training appliances or apparatus for special sports
- A63B69/0028—Training appliances or apparatus for special sports for running, jogging or speed-walking
- A63B2069/0037—Training appliances or apparatus for special sports for running, jogging or speed-walking safety devices, e.g. warning bells, rear-view mirrors
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
- A63B71/06—Indicating or scoring devices for games or players, or for other sports activities
- A63B71/0619—Displays, user interfaces and indicating devices, specially adapted for sport equipment, e.g. display mounted on treadmills
- A63B71/0622—Visual, audio or audio-visual systems for entertaining, instructing or motivating the user
- A63B2071/0625—Emitting sound, noise or music
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
- A63B71/06—Indicating or scoring devices for games or players, or for other sports activities
- A63B71/0619—Displays, user interfaces and indicating devices, specially adapted for sport equipment, e.g. display mounted on treadmills
- A63B2071/065—Visualisation of specific exercise parameters
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2220/00—Measuring of physical parameters relating to sporting activity
- A63B2220/05—Image processing for measuring physical parameters
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2220/00—Measuring of physical parameters relating to sporting activity
- A63B2220/80—Special sensors, transducers or devices therefor
- A63B2220/806—Video cameras
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2230/00—Measuring physiological parameters of the user
- A63B2230/04—Measuring physiological parameters of the user heartbeat characteristics, e.g. ECG, blood pressure modulations
- A63B2230/06—Measuring physiological parameters of the user heartbeat characteristics, e.g. ECG, blood pressure modulations heartbeat rate only
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- Physical Education & Sports Medicine (AREA)
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- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
- Measuring And Recording Apparatus For Diagnosis (AREA)
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Abstract
The invention discloses a kind of marathon runner's heart rate measurement and system for prompting and method, system includes cloud database, data acquisition module, processing module, warning module and reminding module.Number and corresponding personal log-on message of the cloud database for marathon runner in storage match；The data acquisition module is for face of the acquisition comprising current kinetic person and its video of number；The processing module is used to obtain the number of marathon runner and the heart rate of corresponding sportsman；The warning module is used to obtain the information of corresponding sportsman, judges that the heart rate of sportsman enters early warning range；The reminding module is used to make prompting and warning to sportsman of the heart rate in early warning range.The present invention obtains sportsman's heartbeat by the real-time collection analysis of live video, reminds the sportsman by modes such as screen displays by racing track when heartbeat is overrun, sportsman is made to know physical condition in time, so as to avoid happening for further threat to life.
Description
Technical field
The present invention relates to Human Factors Engineering Field more particularly to a kind of marathon runner's heart rate measurement and system for prompting and sides
Method.
Background technology
Under the heat wave to sweep over the country in marathon race, in the upsurge of " whole people's horse race ", more and more ordinary people's heat
Inner feelings in and have an opportunity to take part in the marathon race, the dangerous attribute of marathon race also more highlights, marathon runner
The situation of cardiac arrest sudden death happens occasionally.The induced factor of marathon runner's heart arrest in play has very much, most directly
What is connect be exactly heartbeat has been more than limit, but sportsman is emphasizing combatant spirit during the games, it is impossible to perceive body hair
The signal that transfinites gone out, and if keeping the state of tachycardias for a long time, it is possible to bring heart arrest, threat to life
Etc. serious consequences.In the prior art, there is the method for the contactless heart rate measurement based on face video, but this method exists
The matching lacked in marathon campaign to player information is attached to, the heart rate for leading to not judge in time marathon runner is
It is no too fast and make prompting, therefore, so far there are no the tachycardic detection of marathon runner applies in marathon race.
Invention content
The purpose of the present invention is to provide a kind of marathon runner's heart rate measurement and system for prompting, which can pass through
Live video acquires and analyzes the heart rate situation of sportsman in real time, obtains participation of the athletes data, and in sportsman's heart rate
By making prompting to sportsman the methods of large screen display by racing track when overrunning, marathon runner is enable to know in time certainly
The physical condition of body, so as to avoid happening for further threat to life.
Another object of the present invention is to provide a kind of method based on marathon runner's heart rate measurement and system for prompting.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of marathon runner's heart rate measurement and system for prompting, including：Cloud database, data acquisition module, processing
Module, warning module and reminding module.
Number and corresponding personal log-on message of the cloud database for marathon runner in storage match,
Such as name, age.
The data acquisition module is used to acquiring the current face Jing Guo data acquisition module coverage and its number
Video；
The processing module is used for the Video Quality Metric for obtaining data acquisition module as several pictures, and is known using image
Other technology obtains the number of current marathon runner；Current horse is obtained using the video of data collecting module collected simultaneously
The human face image sequence of sportsman is pulled loose, according to the contactless heart rate measurement technology of face video, obtains current kinetic person's
Heart rate；
The warning module is used for the number and heart rate of the marathon runner that are handled according to processing module, from cloud
The information for obtaining corresponding sportsman is searched in client database, judges whether the heart rate of current kinetic person overruns, it, will if overrun
Information is transferred to reminding module；
The reminding module generates prompting message, and prompting message is shown to by road according to player information, heart rate
Screen on, externally make prompting and warning.
Further, the data acquisition module includes high-definition camera, LED light source；In order to obtain clearly video, institute
The resolution ratio for stating high-definition camera is 1280 × 720, and frame per second is 30 frames/s, code check 4M.
Further, after data collecting module collected video, by internet by the transmission of video to processor module
It is analyzed and processed.
Further, in marathon course, racing track first half section sets a data acquisition module, match every two kilometers
The later half section in road sets a data acquisition module every one kilometer；Later half section is unexpected section occurred frequently, this setup
It can play the role of protecting marathon runner to the maximum extent and save cost.
Further, the processing module, including：Modular converter, heart rate computing module, number identification module；
The modular converter is used to the video of data collecting module collected carrying out coded treatment, obtains transporting containing marathon
Multiple the RGB pictures and the human face image sequence containing sportsman face for mobilizing number.
The heart rate computing module is extracted and is reflected in the human face image sequence for handling human face image sequence
PPG signals, noisy pulse signal is obtained from the signal, to noisy pulse signal carry out mode decomposition, extract pulse wave,
Spectrum analysis is carried out to pulse wave, the heart rate of sportsman is calculated.
The number identification module is used for multiple RGB pictures for containing racing number to being obtained after module processing
Processing is identified, obtains the number of shown sportsman in picture.
Further, the warning module contains judgment module, the horse traction of heart rate according to measured by being obtained from database
The age data of loose sportsman is judged to whether sportsman's heart rate overruns；
Further, the basic judgment method is：
Limit heartbeat=220- ages of people；
The limit heartbeat * 0.8 of marathon maximum heartbeat=people.
Further, in marathon course, racing track first half section is after two kilometers of settings, one reminding module, racing track
Half section sets a reminding module every one kilometer；The reminding module set-up mode is corresponding with photographing module, with camera shooting
Module has the advantages that identical.
A kind of marathon runner's heart rate measurement and based reminding method, specific steps include：
S1, video acquisition is carried out to the sportsman currently Jing Guo data acquisition module coverage, obtains a series of videos；
S2, the RGB image that sportsman's Video Quality Metric of acquisition is contained into racing number into multiple and contain sportsman
The human face image sequence of face according to the contactless method for measuring heart rate of face video, obtains the heart rate information of sportsman；
S3, competition number on sportsman is worn in image number cloth is identified by image recognition technology；
S4, according to participation of the athletes number, obtain name, the age information of sportsman；
S5, heart rate information and age information according to sportsman judge sportsman with the presence or absence of tachycardias problem, and
There is the participation of the athletes number of tachycardias in record；
S6, the information of the sportsman of tachycardias is shown by the screen beside network transmission to racing track, to phase
It closes sportsman and makes prompting.
Further, in step s 2, the contactless method for measuring heart rate of the face video, using photoelectricity volume arteries and veins
It fights wave graphical method (PPG), the specific steps are：
S21, Face datection are to eliminate background noise；
S22, extraction area-of-interest interfere to avoid non-skin region；
S23, R, G, channel B separation and Extraction skin color variable signal；
S24, noisy pulse signal is obtained；
S25, mode decomposition is carried out to noisy pulse signal, extracts pulse wave；
S26, spectrum analysis calculate heart rate.
Further, it in the step S22, is realized by gray-level projection and chooses area-of-interest, can effectively kept away
Exempt from the interference that human eye such as blinks at the non-skin region.
Further, in the step S23, R, G, channel B to image sequence are detached, and do space pixel respectively
Average treatment, i.e.,
Wherein, n is number of image frames, and N is video totalframes, and X (n) is R, G or the one-dimensional source signal of channel B, xi,j(n) it is picture
For vegetarian refreshments (I, j) in the color intensity value of corresponding channel, h and w are respectively the height and width of image.
Further, in the step S24,3 one-dimensional source signals of channel are obtained by formula (1), i.e. skin color changes
Signal, wherein the pulse information comprising people, analyzes this 3 signals using Independent Component Analysis, obtain 3 independences
Ingredient C1、C2、C3.Due to C1、C2、C3It is unordered, in order to therefrom select the pulse signal of needs, by C1、C2、C3Respectively with
Noise is minimum and the most similar G channel signals of pulse signal carry out correlation analysis, and obtained correlation maximum ingredient is to contain
It makes an uproar pulse wave signal.
Further, in the step S25, in order to adaptively eliminate noise, using complete overall experience mode decomposition
Noisy pulse wave signal is decomposed into different scale ingredient, i.e. IMF by methodi, the different scale ingredient is located at different frequencies
Band.
Further, in the step S26, ingredient that selecting frequency is located in heartbeat frequency band is the pulse wave of estimation, energy
It is palmic rate f to measure the corresponding frequency of spectrum peakh, heart rate is：
R=60fh (2)。
Further, the step S3, the specific steps are：
S31, gray processing processing is carried out to original image, edge detection, last basis is then carried out using Morphological scale-space
The form and color characteristic of racing number image, region of checking numbers are screened, fine positioning movements person number field；
S32, according to the racing number region positioned in image, rough segmentation is carried out to character using connected component labeling algorithm
It cuts, finds the central point of each character, then by first character central point and the line and water of last character central point
Inclination angle of the angle of flat line as number field image, line tilt correction of going forward side by side, according to the statistics width of single character, then
Further Character segmentation does character using vertical projection method, so as to be partitioned into each character in racing number region；
S33, the character after segmentation is normalized, extracts the local feature and structure feature of character picture, it will
The two is combined the input vector as support vector machines, is trained, predicts, the final identification for realizing racing number.
The present invention has following advantageous effect compared to the prior art：
The present invention can timely track marathon runner's heart rate fitness situation, in marathon runner's heart rate
Early warning can be made when overrunning in time, marathon runner is promoted to slow down the modes such as velocity and slows down cardiac load, avoids sending out
Raw situation about further deteriorating.
Description of the drawings
Fig. 1 is a kind of marathon runner's heart rate measurement of embodiment 1 and the schematic diagram of system for prompting；
Fig. 2 is the flow chart of a kind of marathon runner's heart rate measurement and based reminding method of embodiment 2.
Specific embodiment
With reference to embodiment and attached drawing, the present invention is described in further detail, but embodiments of the present invention are unlimited
In this.
Embodiment 1
As shown in Figure 1, for a kind of marathon runner's heart rate measurement of the present embodiment and the schematic diagram of system for prompting.Specific packet
It includes：Cloud database, data acquisition module, processing module, warning module and reminding module.
Number and corresponding personal log-on message of the cloud database for marathon runner in storage match,
Such as name, age.
The data acquisition module be used to acquire the current sportsman Jing Guo data acquisition module coverage face and
The video of its number；
The processing module is used for the Video Quality Metric for obtaining data acquisition module as several pictures, and is known using image
Other technology obtains the number of current marathon runner；Current horse is obtained using the video of data collecting module collected simultaneously
The human face image sequence of sportsman is pulled loose, according to the contactless heart rate measurement technology of face video, obtains current kinetic person's
Heart rate；
The warning module is used for the number and heart rate of the current marathon runner that are handled according to processing module,
The information for obtaining corresponding sportsman is searched from cloud database, judges whether the heart rate of sportsman goes wrong, such as overrun
Deng if the heart rate of sportsman enters early warning range, such as overruns, then transferring information to reminding module；
The reminding module is used for the screen by the presentation of information to road of the sportsman by heart rate in early warning range,
Prompting and warning are made to sportsman or site management medical staff etc..
In the present embodiment, the data acquisition module includes high-definition camera, LED light source；The resolution ratio of high-definition camera
It is 1280 × 720, frame per second is 30 frames/s, code check 4M.After data collecting module collected video, by internet by the video
Processor module is transferred to be analyzed and processed.
In the present embodiment, the processing module, including：Modular converter, heart rate computing module, number identification module；It is described
Modular converter is used to the video of data collecting module collected carrying out coded treatment, obtains containing the more of marathon runner's number
Open RGB pictures and the human face image sequence containing sportsman face.The heart rate computing module is used for human face image sequence
It is handled, extracts the PPG signals reflected in the human face image sequence, noisy pulse signal is obtained from the signal, it is right
Noisy pulse signal carries out mode decomposition, extracts pulse wave, carries out spectrum analysis to pulse wave, the heart of sportsman is calculated
Rate.The number identification module is used to carry out multiple the RGB pictures for containing racing number obtained after module processing
Identifying processing obtains the number of shown sportsman in picture；
In the present embodiment, the warning module contains judgment module, the horse of heart rate according to measured by being obtained from database
The age data of sportsman is pulled loose, is judged to whether sportsman's heart rate goes wrong；The basic judgment method is：
Limit heartbeat=220- ages of people；
The limit heartbeat * 0.8 of marathon maximum heartbeat=people.
In marathon course, racing track first half section midway after two kilometers of settings, one data acquisition module, racing track
Section sets a data acquisition module every one kilometer；Racing track first half section sets a reminding module, racing track every two kilometers
Later half section sets a reminding module every one kilometer.Later half section is unexpected section occurred frequently, and this setup can be most
Play the role of to limits protecting marathon runner, and cost can be saved；Reminding module set-up mode and photographing module phase
It is corresponding, have the advantages that with photographing module identical.
Embodiment 2
Referring to Fig. 2, a kind of marathon runner's heart rate measurement and based reminding method, specific steps packet are disclosed in the present embodiment
It includes：
S1, video acquisition is carried out to the sportsman currently Jing Guo data acquisition module coverage, obtains a series of videos；
S2, the RGB image that sportsman's Video Quality Metric of acquisition is contained into racing number into multiple and contain sportsman
The human face image sequence of face according to the contactless method for measuring heart rate of face video, obtains the heart rate information of sportsman；
Specifically, in step s 2, the contactless method for measuring heart rate of the face video, using photoelectricity volume pulsation
Wave graphical method (PPG), the specific steps are：
S21, Face datection are to eliminate background noise；
S22, extraction area-of-interest interfere to avoid non-skin region；
Specifically, it in the step S22, is realized by gray-level projection and chooses area-of-interest, can effectively avoided
Human eye such as blinks at the interference in non-skin region.
S23, R, G, channel B separation and Extraction skin color variable signal；
Specifically, in the step S23, R, G, channel B to image sequence are detached, and are done space pixel respectively and put down
It handles, i.e.,
Wherein, n is number of image frames, and N is video totalframes, and X (n) is R, G or the one-dimensional source signal of channel B, xi,j(n) it is picture
For vegetarian refreshments (i, j) in the color intensity value of corresponding channel, h and w are respectively the height and width of image.
S24, noisy pulse signal is obtained；
Specifically, in the step S24,3 one-dimensional source signals of channel, i.e. skin color variation letter are obtained by formula (1)
Number, wherein the pulse information comprising people, analyzes this 3 signals using Independent Component Analysis, obtain 3 it is independent
Ingredient C1、C2、C3.Due to C1、C2、C3It is unordered, in order to therefrom select the pulse signal of needs, by C1、C2、C3Respectively with making an uproar
Sound is minimum and the most similar G channel signals of pulse signal carry out correlation analysis, and obtained correlation maximum ingredient is as noisy
Pulse wave signal.
S25, mode decomposition is carried out to noisy pulse signal, extracts pulse wave；
Specifically, in the step S25, in order to adaptively eliminate noise, using complete overall experience mode decomposition side
Noisy pulse wave signal is decomposed into different scale ingredient, i.e. IMF by methodi, the different scale ingredient is located at different frequencies
Band.
S26, spectrum analysis calculate heart rate.
Specifically, in the step S26, ingredient that selecting frequency is located in heartbeat frequency band is the pulse wave of estimation, energy
The corresponding frequency of spectrum peak is palmic rate fh, heart rate is
R=60fh (2)
S3, competition number on sportsman is worn in image number cloth is identified by image recognition technology；
The present embodiment can be used following methods and be identified：
S31, gray processing processing is carried out to source images, edge detection is then carried out using Morphological scale-space, finally according to fortune
The form and color characteristic of number image are mobilized, region of checking numbers is screened, fine positioning movements person number field；
S32, according to the racing number region positioned in image, rough segmentation is carried out to character using connected component labeling algorithm
It cuts, finds the central point of each character, then by first character central point and the line and water of last character central point
Inclination angle of the angle of flat line as number field image, line tilt correction of going forward side by side, according to the statistics width of single character, then
Further Character segmentation does character using vertical projection method, so as to be partitioned into each character in racing number region；
S33, the character after segmentation is normalized, extracts the local feature and structure feature of character picture, it will
The two is combined the input vector as support vector machines, is trained, predicts, the final identification for realizing racing number.
S4, according to participation of the athletes number, obtain name, the age information of sportsman；
S5, heart rate information and age information according to sportsman judge sportsman with the presence or absence of tachycardias problem, and
There is the participation of the athletes number of tachycardias in record；
S6, by the information of the sportsman of tachycardias by uploading in internet, and be transferred to the large-size screen monitors beside racing track
Curtain is shown, prompting is made to relative motion person.
Above-described embodiment is the preferable embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any Spirit Essences without departing from the present invention with made under principle change, modification, replacement, combine, simplification,
Equivalent substitute mode is should be, is included within protection scope of the present invention.
Claims (10)
1. a kind of marathon runner's heart rate measurement and system for prompting, which is characterized in that including：Cloud database, data acquisition
Module, processing module, warning module and reminding module；
Cloud database, for storing the number of marathon runner and corresponding personal log-on message in match；
Data acquisition module, for acquiring the face of the current sportsman Jing Guo data acquisition module coverage and its number
Video；
Processing module, the Video Quality Metric for data acquisition module to be obtained are several pictures, and using image recognition technology
To obtain the number of current marathon runner；Current marathon fortune is obtained using the video of data collecting module collected simultaneously
The human face image sequence of mobilization according to the contactless heart rate measurement technology of face video, obtains the heart rate of current kinetic person；
Warning module, for the number and heart rate of the marathon runner handled according to processing module, from high in the clouds data
The information for obtaining corresponding sportsman is searched in library, judges whether the heart rate of current kinetic person overruns, if overrun, information is passed
It is defeated to arrive reminding module；
Prompting message for generating prompting message according to player information, heart rate, and is shown to the screen by road by reminding module
On curtain, prompting and warning are externally made.
2. marathon runner's heart rate measurement according to claim 1 and system for prompting, it is characterised in that：The processing mould
Block includes modular converter, heart rate computing module, number identification module；
Modular converter for the video of data collecting module collected to be carried out coded treatment, is obtained containing marathon runner number
Multiple RGB pictures and the human face image sequence containing sportsman face of code；
Heart rate computing module for handling human face image sequence, extracts the PPG letters reflected in the human face image sequence
Number, noisy pulse signal is obtained from the signal, mode decomposition is carried out to noisy pulse signal, pulse wave is extracted, to pulse
Wave carries out spectrum analysis, and the heart rate of sportsman is calculated；
Number identification module, for knowing to multiple the RGB pictures for containing racing number obtained after module processing
Other places are managed, and obtain the number of shown sportsman in picture.
3. marathon runner's heart rate measurement according to claim 1 and system for prompting, it is characterised in that：The early warning mould
Block contains judgment module, the age data of the marathon runner of heart rate according to measured by being obtained from database, to sportsman
Whether heart rate, which overruns, judges；
Basic judgment method is：
Limit heartbeat=220- ages of people；
The limit heartbeat * 0.8 of marathon maximum heartbeat=people.
4. a kind of marathon runner's heart rate measurement and based reminding method, which is characterized in that step includes：
S1, video acquisition is carried out to the sportsman currently Jing Guo data acquisition module coverage, obtains a series of videos；
S2, sportsman's Video Quality Metric of acquisition is contained into the RGB image of racing number and containing sportsman face into multiple
Human face image sequence, according to the contactless method for measuring heart rate of face video, obtain the heart rate information of sportsman；
S3, competition number on sportsman is worn in image number cloth is identified by image recognition technology；
S4, according to participation of the athletes number, obtain name, the age information of sportsman；
S5, heart rate information and age information according to sportsman judge sportsman with the presence or absence of tachycardias problem, and record
There are problems that the participation of the athletes number of tachycardias；
S6, the information of the sportsman of tachycardias by the screen beside network transmission to racing track is shown, correlation is transported
Prompting is made in mobilization.
5. marathon runner's heart rate measurement according to claim 4 and based reminding method, which is characterized in that in step S2
In, the contactless method for measuring heart rate of the face video, using photoplethysmographic graphical method, the specific steps are：
S21, Face datection are to eliminate background noise；
S22, extraction area-of-interest interfere to avoid non-skin region；
S23, R, G, channel B separation and Extraction skin color variable signal；
S24, noisy pulse signal is obtained；
S25, mode decomposition is carried out to noisy pulse signal, extracts pulse wave；
S26, spectrum analysis calculate heart rate.
6. marathon runner's heart rate measurement according to claim 5 and based reminding method, which is characterized in that the step
In S22, realized by gray-level projection and choose area-of-interest；
In the step S23, R, G, channel B to image sequence are detached, and do space pixel average treatment respectively, i.e.,：
Wherein, n is number of image frames, and N is video totalframes, and X (n) is R, G or the one-dimensional source signal of channel B, xi,j(n) it is pixel
(i, j) in the color intensity value of corresponding channel, h and w are respectively the height and width of image.
7. marathon runner's heart rate measurement according to claim 6 and based reminding method, which is characterized in that the step
In S24,3 one-dimensional source signals of channel, i.e. skin color variable signal are obtained by formula (1), wherein the pulse information comprising people,
This 3 signals are analyzed using Independent Component Analysis, obtain 3 independent ingredient C1、C2、C3, by C1、C2、C3Point
Not minimum with the noise and most similar G channel signals of pulse signal carry out correlation analysis, and obtained correlation maximum ingredient is i.e.
For noisy pulse wave signal.
8. marathon runner's heart rate measurement according to claim 5 and based reminding method, which is characterized in that the step
In S25, using complete overall experience mode decomposition method, noisy pulse wave signal is decomposed into different scale ingredient, i.e. IMFi,
Different scale ingredient is located at different frequency bands.
9. marathon runner's heart rate measurement according to claim 5 and based reminding method, which is characterized in that the step
In S26, the ingredient that selecting frequency is located in heartbeat frequency band is the pulse wave of estimation, and the corresponding frequency of energy spectrum peak is heartbeat frequency
Rate fh, heart rate is：
R=60fh。
10. marathon runner's heart rate measurement according to claim 4 and based reminding method, which is characterized in that the step
S3, the specific steps are：
S31, gray processing processing is carried out to original image, edge detection is then carried out using Morphological scale-space, finally according to movement
The form and color characteristic of member's number image, region of checking numbers are screened, fine positioning movements person number field；
S32, according to the racing number region positioned in image, coarse segmentation is carried out to character using connected component labeling algorithm, is looked for
To the central point of each character, then by first character central point and the line and horizontal linear of last character central point
Inclination angle of the angle as number field image, line tilt correction of going forward side by side, according to the statistics width of single character, then using hanging down
Straight sciagraphy does character further Character segmentation, so as to be partitioned into each character in racing number region；
S33, the character after segmentation is normalized, the local feature and structure feature of character picture is extracted, by the two
The input vector as support vector machines is combined, is trained, predicts, the final identification for realizing racing number.
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