CN108961867A - A kind of digital video interactive based on preschool education - Google Patents
A kind of digital video interactive based on preschool education Download PDFInfo
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- CN108961867A CN108961867A CN201810886315.9A CN201810886315A CN108961867A CN 108961867 A CN108961867 A CN 108961867A CN 201810886315 A CN201810886315 A CN 201810886315A CN 108961867 A CN108961867 A CN 108961867A
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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
- G09B5/06—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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Abstract
The invention discloses a kind of digital video interactives based on preschool education, including video acquisition module, height data to obtain module, teaching initiation module, controller, display control module, evaluation module, database, data acquisition module and the first modeling unit；The present invention is transferred to body data information by the first modeling unit reception controller and is established automatically according to body data information and the consistent dummy model of body data, the first modeling unit is being received the teaching dancing video of data acquisition module transmission and carrying out digitized processing to it and acquire dancing track data later, dancing track data is converted using scaling formula later and forms teaching dancing track data, formation is imparted knowledge to students with the consistent dummy model of child's height.
Description
Technical field
The invention belongs to preschool education fields, are related to a kind of multimedia interactive technology, specifically a kind of to be based on preschool education
Digital video interactive.
Background technique
Currently, for child early education with attention of the parent to education it is also more and more important, also occur on current market
Many intelligent child's early education equipment, miscellaneous early education toy, equipment emerge one after another；But Most current early education is played
Tool or equipment be essentially all it is one-side give child inculcate something, do not form a good interaction；And child
Generally these equipment and toy can be simply contacted in curious, but the nature active with child, and give vent to endless
Energy is essentially all to stop after getting a little knowledge of a subject or about sth. for these toys, and difficult prospect object for appreciation is gone down, and a moral is also not achieved；
And current dancing is a good mode for early children development and giving vent to for energy, but is a lack of a kind of effective
Interactive device and system, can with child formed interact；And in order to solve drawbacks described above, a solution is now provided.
Summary of the invention
The purpose of the present invention is to provide a kind of digital video interactives based on preschool education.
The technical problems to be solved by the invention are as follows:
(1) how some dancing videos inconsistent with child's height ratio to be formed in real time a kind of consistent with child's height
Dummy model；
(2) how accurate evaluation is formed to child's dancing；
(3) how several videos are subjected to reasonable split screen display available and learn simultaneously feedback learning result convenient for child.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of digital video interactive based on preschool education, including video acquisition module, height data obtain module, religion
Learn initiation module, controller, display control module, evaluation module, database, data acquisition module and the first modeling unit；
Wherein, the video acquisition module is used for acquiring child's real-time learning video, the video acquisition module in real time
In real-time learning video information transmission to controller and height data are obtained module；The height data obtains module and is used for root
Real-time learning video information is transferred to according to video acquisition module and is analyzed it, and the body data information of child, institute are obtained
Stating body data information includes height, brachium and leg long message and upper lower part of the body ratio data；The height data obtains mould
Block is used to for body data information being transferred to controller, and the controller is used to body data information being transferred to the first modeling list
Member；
The teaching initiation module is used to transmit education informations to controller, and the education informations include instructional signal and religion
Particular content；The database is connect by GPRS network with internet, and the database is for storing childhood teaching dance
Video is stepped, education informations can be transferred to data acquisition when receiving the education informations of teaching initiation module transmission by the controller
Module, the data acquisition module are used for according to the content of courses when receiving the education informations of controller transmission automatically from data
Teaching dancing video is obtained in library and teaching dancing video is returned into controller；The data acquisition module is also used to impart knowledge to students
Dancing transmission of video is to the first modeling unit；
First modeling unit can be according to body data information when receiving controller and being transferred to body data information
Automatic foundation and the consistent dummy model of body data, first modeling unit is in the religion for receiving data acquisition module transmission
It learns dancing video and digitized processing is carried out to it and acquire dancing track data；The digitized processing includes following steps
It is rapid:
Step 1: three-dimensional data coordinate system is established；
Using right crus of diaphragm big toe establishes three-dimensional system of coordinate as coordinate origin when faculty's origination action in instructional video；
Step 2: initial teaching personnel positions data information is obtained；
According to three-dimensional coordinate, the key position three-dimensional system of coordinate of faculty is demarcated, the key position is left and right arm
And arm joint, left and right leg and left and right leg joint information, crotch's information and header information, the header information is mainly with face position
It sets as reference, crotch's information is mainly reference with crotch point and two sides crotch outermost；By the initial of any position
D coordinates value is labeled as (U1, V1, W1)；
Step 3: instructional video is divided into several equal video nodes, each video node interval time is default
Time；The last one video node is instructional video end point；
Step 4: calibration is measured to faculty's key position information of each video node；Obtain each view
The three-dimensional coordinate of frequency node faculty's key position information；(Ui, Vi, Wi) (i=1..n)；
Step 5: the key position information of above-mentioned each video node of data is correspondingly formed dancing track data；
First modeling unit is also used to make following processing according to the body data of dummy model and obtains dancing track
Data compression ratio；The processing step is as follows:
S1: equally using dummy model right crus of diaphragm big toe as coordinate origin, three-dimensional system of coordinate is established；
S2: initial virtual modal position data information is obtained；
According to three-dimensional coordinate, the key position three-dimensional system of coordinate of dummy model is demarcated, the key position is left and right arm
And arm joint, left and right leg and left and right leg joint, crotch's information and header information, the header information are mainly made with face position
For reference；(X1,Y1,Z1)
S3: dummy model position data is compared to obtain corresponding contracting with initial teaching personnel positions data information
Put ratio；
S4: scaling formula is utilized
Dancing track data is converted and forms teaching dancing track data；
The video acquisition module also uses the dancing study video of acquisition child, and the video acquisition module is used for dancing
Learn transmission of video to controller, the controller receives dancing study video and acquires dancing white silk according to digitized processing
It practises track data (Ji, Ki, Li) (i=1..n)；The controller is for dancing track data and the dancing practice track of imparting knowledge to students
Data are transferred to evaluation module；
The evaluation module will be for that will score to dancing study video；The evaluation module is according to following step to dance
Study video is stepped to score:
SS1: branch point evaluation is carried out to dancing study video；
SS2: according to scoring formulaAcquire left arm
And score S1 is evaluated in arm joint part, score S2 is evaluated in right arm and arm joint part, and left leg and left leg joint information are commented
Valence score S3, right leg and right leg joint information evaluation score S4, crotch information evaluation score S5 and header information evaluate score S6；
SS3: its overall merit score S is obtained according to formula S=S1+S2+S3+S4+S5+S6；
SS4: each section score average mark G is calculated, S1, S2, S3, S4, S5 and S6 are compared with G；
SS5: it can be marked as when comparing any portion score lower than average mark G to be strengthened；
The evaluation module is used to returning to overall merit score S into controller, and the controller is used for overall merit score
It is transferred to display control module driving display screen and carries out real-time display.
Further, the controller forms teaching dancing rail for the dancing track data that will impart knowledge to students in conjunction with dummy model
Mark video, the controller are also used to control instructional video, teaching dancing track video and dancing study transmission of video to display
Molding block, the display control module will be shown when receiving instructional video, teaching dancing track video and dancing study video
Display screen curtain is divided into three pieces of progress real-time displays；The display control module shows instructional video and dancing study video side by side
Show.
Further, the evaluation module can also evaluate the dancing study video division period, the time
It is a stage that section, which may be configured as every 10S, and the evaluation module is used to distinguish dancing study video by key position segmentation
It is evaluated later according still further to the period, the period video that the evaluation module is also used to will be less than the key position of average mark passes
It is defeated to show and be labeled as to be strengthened to display module.
Beneficial effects of the present invention:
(1) by the first modeling unit receive controller be transferred to body data information and according to body data information it is automatic
Foundation and the consistent dummy model of body data, later by the first modeling unit in the teaching for receiving data acquisition module transmission
Dancing video simultaneously carries out digitized processing to it and acquires dancing track data, later using scaling formula to dancing track number
According to being converted and forming teaching dancing track data, formation is imparted knowledge to students with the consistent dummy model of child's height；
(2) dancing is acquired according to digitized processing by dancing study video and practices track data；Pass through control later
Device processed practices track data for will impart knowledge to students dancing track data and dancing and is transferred to evaluation module, and Utilization assessment formula is to child
Each section performance carry out Real-Time Evaluation, obtain child and show the part that is most not added；It is commented simultaneously by interval time section
Valence, which can be obtained some position of child and show bad place in some period, to be shown back to display module；
(3) pass through controller simultaneously for instructional video, teaching dancing track video and dancing study transmission of video to display
Control module, display control module will show that screen is divided into three pieces of progress real-time displays, and the display control module will impart knowledge to students
Video and dancing study video are displayed side by side；Be conducive to child's study；The present invention is simple and effective, and interest is strong, is conducive to child
Learning interaction.
Detailed description of the invention
In order to facilitate the understanding of those skilled in the art, the present invention will be further described below with reference to the drawings.
Fig. 1 is system block diagram of the invention.
Specific embodiment
As shown in Figure 1, a kind of digital video interactive based on preschool education, including video acquisition module, height data
Obtain module, teaching initiation module, controller, display control module, evaluation module, database, data acquisition module and first
Modeling unit；
Wherein, the video acquisition module is used for acquiring child's real-time learning video, the video acquisition module in real time
In real-time learning video information transmission to controller and height data are obtained module；The height data obtains module and is used for root
Real-time learning video information is transferred to according to video acquisition module and is analyzed it, and the body data information of child, institute are obtained
Stating body data information includes height, brachium and leg long message and upper lower part of the body ratio data；The height data obtains mould
Block is used to for body data information being transferred to controller, and the controller is used to body data information being transferred to the first modeling list
Member；
The teaching initiation module is used to transmit education informations to controller, and the education informations include instructional signal and religion
Particular content；The database is connect by GPRS network with internet, and the database is for storing childhood teaching dance
Video is stepped, education informations can be transferred to data acquisition when receiving the education informations of teaching initiation module transmission by the controller
Module, the data acquisition module are used for according to the content of courses when receiving the education informations of controller transmission automatically from data
Teaching dancing video is obtained in library and teaching dancing video is returned into controller；The data acquisition module is also used to impart knowledge to students
Dancing transmission of video is to the first modeling unit；
First modeling unit can be according to body data information when receiving controller and being transferred to body data information
Automatic foundation and the consistent dummy model of body data, first modeling unit is in the religion for receiving data acquisition module transmission
It learns dancing video and digitized processing is carried out to it and acquire dancing track data；The digitized processing includes following steps
It is rapid:
Step 1: three-dimensional data coordinate system is established；
Using right crus of diaphragm big toe establishes three-dimensional system of coordinate as coordinate origin when faculty's origination action in instructional video；
Step 2: initial teaching personnel positions data information is obtained；
According to three-dimensional coordinate, the key position three-dimensional system of coordinate of faculty is demarcated, the key position is left and right arm
And arm joint, left and right leg and left and right leg joint information, crotch's information and header information, the header information is mainly with face position
It sets as reference, crotch's information is mainly reference with crotch point and two sides crotch outermost；By the initial of any position
D coordinates value is labeled as (U1, V1, W1)；
Step 3: instructional video is divided into several equal video nodes, each video node interval time can be 1 second
Or 0.5 second；The last one video node is instructional video end point；
Step 4: calibration is measured to faculty's key position information of each video node；Obtain each view
The three-dimensional coordinate of frequency node faculty's key position information；(Ui, Vi, Wi) (i=1..n)；
Step 5: the key position information of above-mentioned each video node of data is correspondingly formed dancing track data；
First modeling unit is also used to make following processing according to the body data of dummy model and obtains dancing track
Data compression ratio；The processing step is as follows:
S1: equally using dummy model right crus of diaphragm big toe as coordinate origin, three-dimensional system of coordinate is established；
S2: initial virtual modal position data information is obtained；
According to three-dimensional coordinate, the key position three-dimensional system of coordinate of dummy model is demarcated, the key position is left and right arm
And arm joint, left and right leg and left and right leg joint, crotch's information and header information, the header information are mainly made with face position
For reference；(X1,Y1,Z1)
S3: dummy model position data is compared to obtain corresponding contracting with initial teaching personnel positions data information
Put ratio；
S4: scaling formula is utilized
Dancing track data is converted and forms teaching dancing track data；
The video acquisition module also uses the dancing study video of acquisition child, and the video acquisition module is used for dancing
Learn transmission of video to controller, the controller receives dancing study video and acquires dancing white silk according to digitized processing
It practises track data (Ji, Ki, Li) (i=1..n)；The controller is for dancing track data and the dancing practice track of imparting knowledge to students
Data are transferred to evaluation module；
The evaluation module will be for that will score to dancing study video；The evaluation module is according to following step to dance
Study video is stepped to score:
SS1: branch point evaluation is carried out to dancing study video；
SS2: according to scoring formulaAcquire left arm
And score S1 is evaluated in arm joint part, score S2 is evaluated in right arm and arm joint part, and left leg and left leg joint information are commented
Valence score S3, right leg and right leg joint information evaluation score S4, crotch information evaluation score S5 and header information evaluate score S6；
SS3: its overall merit score S is obtained according to formula S=S1+S2+S3+S4+S5+S6；
SS4: each section score average mark G is calculated, S1, S2, S3, S4, S5 and S6 are compared with G；
SS5: it can be marked as when comparing any portion score lower than average mark G to be strengthened；
The evaluation module is used to returning to overall merit score S into controller, and the controller is used for overall merit score
It is transferred to display control module driving display screen and carries out real-time display.
Further, the controller forms teaching dancing rail for the dancing track data that will impart knowledge to students in conjunction with dummy model
Mark video, the controller are also used to control instructional video, teaching dancing track video and dancing study transmission of video to display
Molding block, the display control module will be shown when receiving instructional video, teaching dancing track video and dancing study video
Display screen curtain is divided into three pieces of progress real-time displays；The display control module shows instructional video and dancing study video side by side
Show, teaching dancing track video is placed on lower end and is shown；
Further, the evaluation module can also evaluate the dancing study video division period, the time
It is a stage that section, which may be configured as every 10S, and the evaluation module is used to distinguish dancing study video by key position segmentation
It is evaluated later according still further to the period, the period video that the evaluation module is also used to will be less than the key position of average mark passes
It is defeated to show and be labeled as to be strengthened to display module.
A kind of digital video interactive based on preschool education passes through teaching initiation module initiation pair at work first
Child learns the instructional signal of dancing, acquires the correspondence instructional video in database by data acquisition module later, it
The height data of child is collected by video acquisition module afterwards, and a dummy model is established according to the height data of child,
The instructional video of dancing is converted to the teaching dancing track data of instructional video according to ratio later consistent with child's height
Dummy model teaching dancing track data, later by by the key position at each position of child acquire respectively its learn rail
Study track data is compared with the teaching dancing track data of the consistent dummy model of height later, obtains by mark data
Scoring is returned into display module after being scored, and reminds child to reinforce back to display module weak tendency part；
Beneficial effects of the present invention:
(1) by the first modeling unit receive controller be transferred to body data information and according to body data information it is automatic
Foundation and the consistent dummy model of body data, later by the first modeling unit in the teaching for receiving data acquisition module transmission
Dancing video simultaneously carries out digitized processing to it and acquires dancing track data, later using scaling formula to dancing track number
According to being converted and forming teaching dancing track data, formation is imparted knowledge to students with the consistent dummy model of child's height；
(2) dancing is acquired according to digitized processing by dancing study video and practices track data；Pass through control later
Device processed practices track data for will impart knowledge to students dancing track data and dancing and is transferred to evaluation module, and Utilization assessment formula is to child
Each section performance carry out Real-Time Evaluation, obtain child and show the part that is most not added；It is commented simultaneously by interval time section
Valence, which can be obtained some position of child and show bad place in some period, to be shown back to display module；
(3) pass through controller simultaneously for instructional video, teaching dancing track video and dancing study transmission of video to display
Control module, display control module will show that screen is divided into three pieces of progress real-time displays, and the display control module will impart knowledge to students
Video and dancing study video are displayed side by side；Be conducive to child's study；The present invention is simple and effective, and interest is strong, is conducive to child
Learning interaction.
Above content is only to structure of the invention example and explanation, affiliated those skilled in the art couple
Described specific embodiment does various modifications or additions or is substituted in a similar manner, without departing from invention
Structure or beyond the scope defined by this claim, is within the scope of protection of the invention.
Claims (3)
1. a kind of digital video interactive based on preschool education, which is characterized in that obtained including video acquisition module, height data
Modulus block, teaching initiation module, controller, display control module, evaluation module, database, data acquisition module and first are built
Form unit；
Wherein, for the video acquisition module for acquiring child's real-time learning video in real time, the video acquisition module is used for will
Real-time learning video information transmission obtains module to controller and height data；The height data obtains module and is used for according to view
Frequency acquisition module is transferred to real-time learning video information and analyzes it, and obtains the body data information of child, the body
Volume data information includes height, brachium and leg long message and upper lower part of the body ratio data；The height data obtains module and uses
In body data information is transferred to controller, the controller is used to body data information being transferred to the first modeling unit；
The teaching initiation module is used to transmit education informations to controller, and the education informations include instructional signal and teaching
Particular content；The database is connect by GPRS network with internet, and the database is for storing childhood teaching dancing view
Frequently, education informations can be transferred to data acquisition mould when the controller receives the education informations of teaching initiation module transmission
Block, the data acquisition module are used for according to the content of courses when receiving the education informations of controller transmission automatically from database
Teaching dancing video is simultaneously returned to controller by interior acquisition teaching dancing video；The data acquisition module is also used to the dance that will impart knowledge to students
Transmission of video is stepped to the first modeling unit；
First modeling unit can be automatic according to body data information when receiving controller and being transferred to body data information
It establishes and is waved with the consistent dummy model of body data, first modeling unit in the teaching for receiving data acquisition module transmission
It steps video and digitized processing is carried out to it and acquire dancing track data；The digitized processing includes the following steps:
Step 1: three-dimensional data coordinate system is established；
Using right crus of diaphragm big toe establishes three-dimensional system of coordinate as coordinate origin when faculty's origination action in instructional video；
Step 2: initial teaching personnel positions data information is obtained；
According to three-dimensional coordinate, the key position three-dimensional system of coordinate of faculty is demarcated, the key position is left and right arm and hand
Shoulder joint, left and right leg and left and right leg joint information, crotch's information and header information, the header information are mainly made with face position
For reference, crotch's information is mainly reference with crotch point and two sides crotch outermost；By the initial three-dimensional of any position
Coordinate value is labeled as (U1, V1, W1)；
Step 3: instructional video is divided into several equal video nodes, each video node interval time is preset time；
The last one video node is instructional video end point；
Step 4: calibration is measured to faculty's key position information of each video node；Obtain each video section
The three-dimensional coordinate of point faculty's key position information；(Ui, Vi, Wi) (i=1..n)；
Step 5: the key position information of above-mentioned each video node of data is correspondingly formed dancing track data；
First modeling unit is also used to make following processing according to the body data of dummy model and obtains dancing track data
Compression factor；The processing step is as follows:
S1: equally using dummy model right crus of diaphragm big toe as coordinate origin, three-dimensional system of coordinate is established；
S2: initial virtual modal position data information is obtained；
According to three-dimensional coordinate, the key position three-dimensional system of coordinate of dummy model is demarcated, the key position is left and right arm and hand
Shoulder joint, left and right leg and left and right leg joint, crotch's information and header information, the header information is mainly using face position as ginseng
It examines；(X1,Y1,Z1)
S3: dummy model position data is compared to obtain corresponding pantograph ratio with initial teaching personnel positions data information
Example；
S4: scaling formula is utilized
Dancing track data is converted and forms teaching dancing track data；
The video acquisition module also uses the dancing study video of acquisition child, and the video acquisition module is used for dancing study
To controller, the controller receives dancing study video and acquires dancing practice rail according to digitized processing transmission of video
Mark data (Ji, Ki, Li) (i=1..n)；The controller is for dancing track data and the dancing practice track data of imparting knowledge to students
It is transferred to evaluation module；
The evaluation module will be for that will score to dancing study video；The evaluation module is according to following step to Dance
Video is practised to score:
SS1: branch point evaluation is carried out to dancing study video；
SS2: according to scoring formulaAcquire left arm and hand
Score S1 is evaluated in shoulder joint part, and score S2 is evaluated in right arm and arm joint part, and left leg and left leg joint information evaluation obtain
S3, right leg and right leg joint information evaluation score S4, crotch information evaluation score S5 and header information is divided to evaluate score S6；
SS3: its overall merit score S is obtained according to formula S=S1+S2+S3+S4+S5+S6；
SS4: each section score average mark G is calculated, S1, S2, S3, S4, S5 and S6 are compared with G；
SS5: it can be marked as when comparing any portion score lower than average mark G to be strengthened；
The evaluation module is used to overall merit score S returning to controller, and the controller is for transmitting overall merit score
Display screen is driven to carry out real-time display to display control module.
2. a kind of digital video interactive based on preschool education according to claim 1, which is characterized in that the control
Device for will impart knowledge to students dancing track data formed in conjunction with dummy model impart knowledge to students dancing track video, the controller be also used to by
To display control module, the display control module exists for instructional video, teaching dancing track video and dancing study transmission of video
Display screen three pieces are divided into when receiving instructional video, teaching dancing track video and dancing study video to be shown in real time
Show；Instructional video and dancing study video are displayed side by side by the display control module.
3. a kind of digital video interactive based on preschool education according to claim 1, which is characterized in that the evaluation
Module can also evaluate the dancing study video division period, and it is a stage, institute that the period, which may be configured as every 10S,
It states and is evaluated after evaluation module is used to distinguish dancing study video by key position segmentation according still further to the period, it is described
The period transmission of video that evaluation module is also used to will be less than the key position of average mark shown to display module and be labeled as to
Reinforce.
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| CN113763764A (en) * | 2020-06-02 | 2021-12-07 | 重庆艾艺荷马教育科技股份有限公司 | Interactive mobile device and method convenient for teacher-student communication |
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