CN111445738A - Online motion action tutoring method and system - Google Patents
Online motion action tutoring method and system Download PDFInfo
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- CN111445738A CN111445738A CN202010363252.6A CN202010363252A CN111445738A CN 111445738 A CN111445738 A CN 111445738A CN 202010363252 A CN202010363252 A CN 202010363252A CN 111445738 A CN111445738 A CN 111445738A
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- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B5/00—Electrically-operated educational appliances
- G09B5/06—Electrically-operated educational appliances with both visual and audible presentation of the material to be studied
- G09B5/065—Combinations of audio and video presentations, e.g. videotapes, videodiscs, television systems
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B5/00—Electrically-operated educational appliances
- G09B5/08—Electrically-operated educational appliances providing for individual presentation of information to a plurality of student stations
- G09B5/14—Electrically-operated educational appliances providing for individual presentation of information to a plurality of student stations with provision for individual teacher-student communication
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Abstract
The invention discloses an online movement tutoring method and a system, wherein the method comprises the following steps: acquiring a motion video uploaded to an online platform by a student, and sending a teaching instruction to a selected coach; playing a sports video to a coach according to the instruction for seeking education and the operation of the coach; according to the commenting instruction of the coach, pausing a current playing picture as a key frame, and adding an analysis style on the key frame to form an analysis style picture; and (4) rolling back forward for S seconds along the time axis of the motion video automatically by taking the analysis style picture as the end, playing and recording the analysis style picture again, recording the instruction voice of the coach at the same time, synthesizing the instruction video and uploading the instruction video to an online platform for the students to watch. The invention corrects the movement of the student during the movement by the analysis style and the guidance voice added by the coach, synthesizes the guidance video, enables the student to obtain visual feedback and correction, facilitates the student to scientifically master the key of each movement in the movement, and realizes the purposes of scientific movement and scientific teaching.
Description
Technical Field
The invention relates to the technical field of online sports teaching, in particular to an online sports action tutoring method and system.
Background
With the development of internet technology, various exercise coaching systems operate. These online exercise tutoring systems, such as KEEP, mint exercises, etc., have recorded a large number of exercise courses, and each exercise course has more detailed explanation and main points, and the student can imitate the coach to move according to the explanation and main points in the course video, because the physical quality and the mastery degree of the motion knowledge of each student are different, and each student is different to the completion degree of the action and the standard degree of the action. In the process of exercise, irregular actions not only can not achieve the purpose of exercise, but also can cause damage to other parts of the body. For example, in a sit-up, a novice can drive other muscles to complete actions by holding the head due to the weak abdominal strength, so that the training effect on the abdominal muscles can be weakened, blood vessels in cervical vertebrae can be pressed, and even the blood vessels can burst; at the same time, this posture can put additional strain on the spine, which is a great hazard for adolescents who are developing bones.
At the same time, physical education is a closed loop that demonstrates, simulates, exercises, feedback, corrects, and ultimately forms action automation. The existing online motion tutoring system or the sports teaching video live broadcasting system is poor in interactivity, a coach and a teacher can demonstrate, a viewer can simulate the action, but the coach cannot feed back and correct the action of a student, so that the teaching cycle is not established, the student cannot correct the action of the student instantly, and the motion effect of the student is seriously influenced.
In view of this, there is an urgent need to improve the existing motion tutoring system, so that the teacher can correct the motions and motions of the trainee online, the trainee can receive the feedback from the trainer intuitively, and the standard degree of the trainee to complete the motions is improved.
Disclosure of Invention
The invention aims to solve the technical problems that the existing motion tutoring system cannot guide the actions of a student in time and has poor interactivity.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
an online athletic movement tutoring method, comprising the steps of:
acquiring a motion video uploaded to an online platform by a student, and sending a teaching instruction to a coach selected by the student;
playing the motion video to the coach according to the teaching instruction and the operation of the coach;
pausing a currently played picture as a key frame according to the commenting instruction of the coach, and adding an analysis style on the key frame to form an analysis style picture;
rolling back forward for S seconds along the time axis of the motion video automatically with the analysis style picture as the end, playing and recording the played motion video to the analysis style picture again, and simultaneously recording the instruction voice of a coach;
and synthesizing the guide voice and the recorded and played motion video into a new video segment to form a guide video, and uploading the guide video to the online platform for the student to watch.
In the scheme, each motion video comprises one or more actions;
in the scheme, the video clips guide one or more videos.
In the scheme, the instructional video is stored on the coach client and uploaded to the online platform according to the uploading instruction of the coach.
In this scenario, the analysis style includes, but is not limited to, text, lines, and angles.
In this scheme, through setting-out instrument and the addition of characters instrument on the online platform characters, lines and contained angle.
In the scheme, the recording tool on the online platform adds the guidance voice.
In the scheme, the recording tool calls a local microphone of the coach client to record the guidance voice.
An online motion tutoring system comprises an online platform, and a teacher client and a coach client which are connected with the online platform through the Internet; the online platform is used for receiving a motion video uploaded by the student and a guide video uploaded by the coach, and playing and pausing the motion video according to the operation of the coach; the teaching client is used for the trainees to upload the motion videos, sending teaching instructions to the selected trainers and watching the guide videos; the coach client is used for the coach to edit and upload a guide video; the coach client includes:
the key frame editing module is used for pausing a current playing picture as a key frame according to the commenting instruction of the coach and adding an analysis style on the key frame to form an analysis style picture;
the synthesis module is used for recording the dynamic pictures which are rolled back forwards for S seconds along the time axis of the motion video after the analysis pattern picture is taken as the tail, playing the dynamic pictures of the analysis pattern picture again and simultaneously recording the instruction voice of a coach; and synthesizing the guiding voice and the recorded and played action video into a new video segment to form a guiding video.
In the scheme, the coach client is provided with:
the line drawing tool is used for adding the lines and the included angles;
a text tool for adding the text;
and the recording tool is used for adding the guidance voice, and the recording tool records the guidance voice by calling a microphone on the coach client.
Compared with the prior art, the on-line motion tutoring method and the system provided by the invention have the advantages that by acquiring the motion video uploaded by the student, and selecting a key frame of the action according to the operation and comment instruction of the coach selected by the student, adding an instruction pattern to the key frame to form an analysis pattern picture, then the synthesis module records the picture with the analysis style as the end, rolls back forward for S seconds along the time axis of the motion video, plays the dynamic picture of the analysis style picture again, and after the recording module synchronously receives and records the instruction voice of the coach, the recorded and played motion video and the guiding voice are synthesized into a new video segment to form a guiding video and the guiding video is uploaded to an online platform, so that a student can obtain visual action feedback conveniently, the action can be scientifically mastered, the interactivity of online motion tutoring of the student and a coach is improved, and the motion effect of the student is favorably provided.
Drawings
FIG. 1 is a schematic diagram of an online athletic maneuver coaching system of the present invention;
FIG. 2 is a flow chart of an online athletic maneuver coaching method of the present invention;
FIG. 3 is a schematic diagram of a coach client work interface of the present invention;
fig. 4 is a screenshot of a guide video in the present invention.
Detailed Description
The invention provides an online motion tutoring method and system, which can realize the error correction of the student motion by acquiring the motion video uploaded by the student, selecting the key frame of the motion according to the instruction of the trainer selected by the student, automatically rolling back along the time axis to record the motion video, synchronously recording the instruction voice of the trainer and synthesizing the instruction video, and is beneficial to the formation of the motion automatic closed loop in the sports teaching. The invention is described in detail below with reference to the drawings and the detailed description.
Fig. 1 is a schematic view of an online athletic movement tutoring system and a tutoring process thereof provided by the present invention, and as shown in fig. 1, the online athletic movement tutoring system provided by the present invention includes an online platform 10, a tutor client 20 and a coach client 30, the tutor client 20 and the coach client 30 are mobile clients with internet connection function, such as a PC, a smart phone, a tablet computer, etc., and the coach client 30 is provided with a microphone. The online platform 10 is used for receiving the motion video uploaded by the trainee and the instructional video uploaded by the coach, and playing and pausing the motion video according to the operation of the coach. The instructor client 20 is used for the trainees to upload the motion videos, send out instruction for education to the selected trainers and watch the instruction videos; coach client 30 is used for the coach to watch sports videos, edit and upload instructional videos. The coach client 30 comprises a key frame editing module 31 and a synthesis module 32, and further comprises a line drawing tool 33, a writing tool 34 and a recording tool 35.
The key frame editing module 31 is mainly used for playing the motion video to the coach according to the instruction for teaching and the operation of the coach; and according to the commenting instruction of the coach, pausing a current playing picture as a key frame, and adding an analysis style on the key frame to form an analysis style picture. Analysis styles include, but are not limited to, text, lines, and angles, and coaches can add corresponding analysis styles through line tool 33 and text tool 34.
The synthesis module 32 is configured to record the analysis pattern picture as the end, roll back forward for S seconds along the time axis of the motion video, play the dynamic picture of the analysis pattern picture again, and receive and record the instructional voice of the trainer; and synthesizing the guiding voice and the recorded and played action video into a new video segment to form a guiding video.
Where S seconds is a positive integer, typically 10, 20, 30 or 60 seconds.
The recording tool 35 is mainly used for adding the guidance voice, and the recording tool 35 can call a microphone on the coach client 30 to record the guidance voice.
The invention provides an online exercise action tutoring method, as shown in fig. 2, comprising the following steps:
s10, acquiring a motion video of the student, uploading the motion video to an online platform, and sending a teaching instruction to a coach selected by the student;
specifically, the trainee uploads the motion video to the online platform 10 through the trainee client 20, the online platform 10 acquires the information of the trainee and generates a corresponding trainer list, and the trainee selects the trainee to ask for teaching. The online platform 10 acquires the motion video uploaded by the trainee and generates a corresponding instruction for teaching, and sends the instruction for teaching to the trainer selected by the trainee. The teaching instruction also includes an online watching address of the sports video, and the coach and the student can watch the video through the online platform 10 according to the online watching address.
S20, playing the sports video to the coach according to the teaching instruction and the coach operation;
specifically, the online platform 10 checks the online watching address of the sports video in the teaching instruction according to the play operation of the coach, and plays the sports video to the coach.
S30, according to the commenting instruction of the coach, pausing a current playing picture as a key frame, and adding an analysis style on the key frame to form an analysis style picture;
specifically, as shown in fig. 3, the online platform 10 pauses the motion video according to the comment instruction of the coach, and the key frame editing module 31 saves the paused picture as a key frame to the local of the coach client 30. Meanwhile, the time point of the video playing at that time is obtained.
The coach adds analysis patterns such as characters, lines and included angles on the stored key frames through the line drawing tool 33 and the character tool 34, and then stores and covers the original stored key frames again to form analysis pattern pictures.
S40, finishing the analysis style picture, automatically rolling back along the time axis of the motion video for S seconds at the playing time point of the current video, playing and recording the played motion video to the analysis style picture again, and simultaneously recording the instruction voice of a coach;
specifically, according to a synthesis instruction of the coach, the online platform 10 ends with the analysis style picture, automatically rolls back along the time axis of the motion video for S seconds from the obtained time point of playing the video, plays the motion video to the analysis style picture again, records the played motion video in a screen recording manner by the synthesis module 32, and ends with the edited analysis style picture to generate a dynamic picture. Meanwhile, the recording tool 35 calls a microphone on the coach client 30 to synchronously record the coaching voice. Wherein the rollback time S can be set by the coach himself, and in this embodiment the rollback time S is 20 seconds.
And S50, synthesizing the guide voice and the recorded and played action video into a new video clip to form a guide video, and uploading the guide video to the online platform for the student to watch.
Specifically, the synthesis module 32 synthesizes the recorded dynamic images and the guide voice recorded by the recording tool 35 into a new video clip, then generates one or more guide videos according to the operation selection of the trainer, and uploads the generated one or more guide videos to the online platform 10, and the trainee can view the guide videos through the online platform 10. The instructional video can be stored at the trainer client 30 and uploaded to the online platform 10 according to the trainer's upload instructions.
The rollback time S is used for recording the instruction voice of the coach, and if the time of the instruction voice is less than S seconds, the screen is continuously recorded after the instruction voice is finished until the pattern picture is analyzed; and if the time of the guide voice is more than or equal to S seconds, taking the analysis style picture as a still picture after the analysis style picture is reached, and continuing to record the screen and the sound until the guide voice is finished, wherein the last stop picture is the analysis style picture.
For remote sports classes or other sports courses, the students have different physical qualities and comprehension abilities, and the coaches need to provide personalized guidance for the actions of each student, correct the errors of postures in the actions of the students, help the students to improve the action completion degree and scientifically master the learning rules. As shown in fig. 4, the coach can comment on the action completion condition of the student according to the exercise video uploaded by the student, and can correct the problem of the exercise action of the student by adding lines, included angles and characters, and newly generate one or more guidance videos, so that the student can conveniently check the videos.
Compared with the prior art, according to the online motion action tutoring method provided by the invention, according to the motion video uploaded by the student, a coach can pause on an action picture needing to be corrected, an analysis pattern is directly added on the online platform, the picture is taken as a key frame to automatically roll back and add guidance voice, and a tutoring video is generated again, so that the student can intuitively feel the feedback of the coach, the student can timely correct errors in the action, the action completion degree and standard degree of the student are improved, the interaction between the coach and the student is promoted, the teaching experience of the coach and the student is improved, and the learning interest of the student is promoted.
In the existing online editing platform, a complete video needs to be downloaded to a coach client, and the complete video is uploaded to the online platform after being edited. The method can occupy the uploading and downloading channels of the platform server, so that the platform server is jammed and the server resources are wasted. In the invention, a mode of recording dynamic segments of actions is adopted, a coach can output one or more guide videos according to the actions contained in the motion videos uploaded by students, the coach can conveniently classify a group of actions according to action themes, an online platform can display the actions, other students can conveniently and better master the main points of the actions, the actions and the students can be self-corrected according to the guide videos, the completeness and the standard degree of the actions completed by the students are improved, the size of download channel resources occupied when the guide videos are uploaded can be reduced, and the operating efficiency of a server is improved.
According to the method and the device, the online platform plays and pauses the motion video according to the operation instruction of the coach, and adopts a screen recording mode, records the motion video with the key frame as the tail, rolls back forward for S seconds along the time axis of the motion video, and plays the motion video to the dynamic picture of the key frame again, so that the coach does not need to download the complete motion video to the local and then edit the motion video, the occupation of the local storage space of the coach client in the editing process is reduced, and the editing efficiency of the coach client is improved.
By adopting a screen recording mode instead of editing and synthesizing the locally downloaded video, the pressure of a server CPU is reduced, the pressure of a client CPU is also reduced, and the video editing method can be smoothly carried out even if the configuration of the client is not high.
The invention regenerates the guide video on the basis of the motion video uploaded by the student, the motion video uploaded by the student is not covered by the generated guide video, the student can conveniently compare the uploaded motion video with the guide video, the action key points of the action can be better mastered, the errors of the action and the posture of the student can be corrected, and the standard degree of the action and the posture can be improved.
The present invention is not limited to the above-mentioned preferred embodiments, and any structural changes made under the teaching of the present invention shall fall within the scope of the present invention, which is similar or similar to the technical solutions of the present invention.
Claims (10)
1. An online motion tutoring method is characterized by comprising the following steps:
acquiring a motion video uploaded to an online platform by a student, and sending a teaching instruction to a coach selected by the student;
playing the motion video to the coach according to the teaching instruction and the operation of the coach;
according to the commenting instruction of the coach, pausing a current playing picture as a key frame, and adding an analysis style on the key frame to form an analysis style picture;
rolling back forward for S seconds along the time axis of the motion video automatically with the analysis style picture as the end, playing and recording the played motion video to the analysis style picture again, and simultaneously recording the instruction voice of a coach;
and synthesizing the guide voice and the recorded and played action video into a new video clip to form a guide video, and uploading the guide video to the online platform for the student to watch.
2. The method of claim 1, wherein each of the motion videos contains one or more actions.
3. The method of claim 1, wherein the guide video is one or more.
4. The method of claim 1, wherein the instructional video is saved on the coach client and uploaded to the online platform according to the coach's upload instructions.
5. The method of claim 1, wherein the analysis patterns include, but are not limited to, text, lines, and angles.
6. The method of claim 5, wherein the text, lines and angles are added by line marking tools and text tools on the online platform.
7. The method of claim 1, wherein the instructional voice is added by a recording tool on the online platform.
8. The method of claim 7, wherein the recording tool invokes a microphone on the coach client to record the instructional voice.
9. An online motion tutoring system comprises an online platform, and a teacher client and a coach client which are connected with the online platform through the Internet; the online platform is used for receiving a motion video uploaded by the student and a guide video uploaded by the coach, and playing and pausing the motion video according to the operation of the coach; the teaching client is used for the trainees to upload the motion videos, sending teaching instructions to the selected trainers and watching the guide videos; the coach client is used for the coach to edit and upload a guide video; characterized in that the coach client comprises:
the key frame editing module is used for pausing a current playing picture as a key frame according to the commenting instruction of the coach and adding an analysis style on the key frame to form an analysis style picture;
the synthesis module is used for recording the dynamic picture of the analysis pattern picture as the end, rolling back forward for S seconds along the time axis of the motion video, playing the dynamic picture of the analysis pattern picture again and simultaneously recording the instruction voice of a coach; and synthesizing the guiding voice and the recorded and played action video into a new video segment to form a guiding video.
10. The system of claim 9, wherein the trainer client is provided with:
the line drawing tool is used for adding the lines and the included angles;
a text tool for adding the text;
and the recording tool is used for adding the guidance voice, and the recording tool records the guidance voice by calling a microphone on the coach client.
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| CN111445738B (en) | 2021-06-08 |
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