CN112933581A - Sports action scoring method and device based on virtual reality technology - Google Patents
Sports action scoring method and device based on virtual reality technology Download PDFInfo
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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
- A63B71/0605—Decision makers and devices using detection means facilitating arbitration
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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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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/011—Arrangements for interaction with the human body, e.g. for user immersion in virtual reality
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
- G06Q50/10—Services
- G06Q50/20—Education
- G06Q50/205—Education administration or guidance
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
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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
- A63B2071/0638—Displaying moving images of recorded environment, e.g. virtual environment
Abstract
The invention relates to the technical field of sports, in particular to a sports action scoring method and a sports action scoring device based on a virtual reality technology, wherein the scoring method comprises the following steps: creating a three-dimensional scene containing sports elements; acquiring body information of a sports person to be scored, and constructing a virtual body of the sports person to be scored in the three-dimensional scene based on the body information; acquiring motion sensing data of a sports person to be scored when doing sports motions, importing the motion sensing data into a virtual body, and collecting motion change data of the virtual body; and comparing the motion change data with a preset scoring standard parameter to obtain a comparison difference value, and determining the motion score according to the comparison difference value. The scoring of the sports action is realized based on the virtual reality technology, the defect that the body is damaged due to the fact that errors may occur in deviation of the action judged by a coach subjectively in the prior art is overcome, and the scoring is more accurate and scientific compared with the subjective judgment of people.
Description
Technical Field
The invention relates to the technical field of sports, in particular to a sports action scoring method and device based on a virtual reality technology.
Background
In the sports industry, gymnastics is very fashionable sports, and not only can exercise the physical health, but also can exercise the body, so that the human body curve looks more beautiful.
The gymnastics require professional guidance, otherwise not only the exercise effect is difficult to achieve, but also serious sports injuries may occur. The professional coaches are expensive in price, so that the requirements of the majority of fitness enthusiasts are difficult to meet.
In the prior art, when people do body-building exercises, the actions are usually corrected by means of subjective judgment of coaches, although the deviation of the actions can be reduced to a certain degree, the judgment of the coaches is subjective, errors can also occur, the deviation of the actions is caused, the training on the body cannot be formed, and the body can be damaged.
Disclosure of Invention
The invention aims to solve the defects that in the prior art, sports people can have errors by means of subjective judgment of action deviation of coaches, so that action deviation occurs, and physical damage is caused, and provides a sports action scoring method and device based on a virtual reality technology.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows:
the invention aims to provide a sports action scoring method based on a virtual reality technology, which comprises the following steps:
creating a three-dimensional scene containing sports elements;
acquiring body information of a sports person to be scored, and constructing a virtual body of the sports person to be scored in the three-dimensional scene based on the body information;
acquiring motion sensing data of a sports person to be scored when the sports person performs sports motions, importing the motion sensing data into the virtual body, and collecting motion change data of the virtual body;
and comparing the action change data with a preset scoring standard parameter to obtain a comparison difference value, and determining an action score according to the comparison difference value.
Optionally, the method for scoring a sports action based on a virtual reality technology, in the step of creating a three-dimensional scene containing sports elements, includes:
acquiring scene data of a sports person to be scored, which needs to be scored;
according to the scene data, element division is carried out on the scene data from multiple dimensions through a preset grading requirement, and divided scene elements are determined; wherein the content of the first and second substances,
the scoring requirements comprise prop requirements and space requirements;
the plurality of dimensions include a time dimension, a space dimension, a view dimension, a lighting effect dimension, and a scoring criteria dimension;
and substituting the scene elements into a preset three-dimensional space to form a three-dimensional scene.
Optionally, the sports action scoring method based on the virtual reality technology, where the step of obtaining the body information of the sports person to be scored and constructing the virtual body of the sports person to be scored in the three-dimensional scene based on the body information includes:
carrying out body detection on the body data of the sports personnel to be scored, and determining body information according to a body detection result;
constructing a three-dimensional coordinate model at the central part of the three-dimensional scene;
substituting the body information into a three-dimensional coordinate model to construct a three-dimensional outline model of the sports personnel to be scored;
substituting human body characteristics into the three-dimensional outline model according to the three-dimensional outline model to generate a virtual body of the sports personnel to be scored; wherein the content of the first and second substances,
the body detection at least comprises height detection, weight detection, arm length detection, leg length detection, hip-crotch ratio detection, muscle detection and foot size detection.
Optionally, in the method for scoring a sports action based on a virtual reality technology, the step of obtaining body information of a sports person to be scored and constructing a virtual body of the sports person to be scored in the three-dimensional scene based on the body information further includes:
acquiring the positions of the bone joints of the sports personnel to be scored, and constructing a bone joint distribution model according to the positions of the bone joints;
and judging the bone joint position of the bone joint of the sports personnel to be scored on the virtual body based on the virtual body and the bone joint model, binding the bone joint position with the bone joint distribution model, and adding the corresponding bone joint in the virtual body.
Optionally, in the physical information of the physical activity scoring method based on the virtual reality technology, the physical information includes motion sensing equipment worn by the body of the sports person to be scored, and motion sensing data of the sports person to be scored during the sports action is acquired through the motion sensing equipment.
Optionally, the method for scoring a sports action based on a virtual reality technology, in the step of obtaining, according to the action sensing device, action sensing data of a sports person to be scored while doing the sports action, includes:
wearing motion sensing equipment on the sports personnel to be scored in advance, carrying out optical marking on the motion of the sports personnel to be scored through the motion sensing equipment, and outputting the optical track of the sports personnel to be scored according to the optical coordinates; determining angle change data of joints when the child to be evaluated moves;
and determining sensing data according to the optical track and angle change data.
Optionally, the method for scoring a sports motion based on a virtual reality technology, where the step of importing the motion sensing data into the virtual body and collecting motion change data of the virtual body includes:
marking the position of the motion sensing data according to the position of data acquisition;
dividing the motion sensing data according to positions according to the position marks, wherein the motion sensing data of each position is used as a data sequence;
determining the corresponding virtual position of the data sequence on the virtual body according to the virtual body;
establishing a data transmission channel between the virtual position and the data sequence;
according to the data transmission channel, transmitting the motion sensing data to the virtual body in real time, and determining the real-time motion posture of the virtual body;
and determining the motion change data of the virtual body according to the real-time motion attitude of the virtual body.
Optionally, the method for scoring a sports motion based on a virtual reality technology, where the motion change data is compared with a preset scoring standard parameter, and the step of obtaining a comparison difference value includes:
according to the action change data, constructing a real-time posture model of the virtual body in a grading time period:
wherein, wi，tAn action position parameter corresponding to the ith action at the t moment is shown; thetaiRepresenting an action change angle corresponding to the ith action; giRepresenting the track characteristic corresponding to the ith action; delta represents a posture deviation coefficient of the virtual body and the sports personnel to be scored; 1, 2, 3 … … n; n represents the total number of actions; t represents a scoring period;
acquiring a preset scoring standard parameter, and determining a scoring deviation:
wherein d isi，jThe position characteristics of the jth track point of the track corresponding to the ith action are represented; j is 1, 2, 3 … … m; m represents the total number of track points of each track of the action; ρ represents a score deviation;
according to the grading deviation, obtaining a comparison difference value:
wherein, B represents a scoring criterion parameter; p denotes a contrast difference.
Optionally, the step of determining an action score according to the comparison difference includes:
according to the comparison difference value, determining the standard reaching rate of the whole set of sports actions of the sports personnel to be scored and the standard sports actions;
and taking the standard reaching rate as the action score of the whole set of sports actions of the sports personnel to be scored.
Another object of the present invention is to provide a sports motion scoring apparatus based on virtual reality technology, including:
a three-dimensional creation module: for creating a three-dimensional scene containing sports elements;
a virtual body construction module: the system comprises a virtual body, a score generation module, a score display module and a score display module, wherein the virtual body is used for acquiring body information of a sports person to be scored and constructing a virtual body of the sports person to be scored in the three-dimensional scene based on the body information;
virtual volume data acquisition module: the system comprises a virtual body, a score acquisition module, a score analysis module and a score display module, wherein the score acquisition module is used for acquiring action sensing data of a sports person to be scored when the sports person does sports actions, importing the action sensing data into the virtual body and acquiring action change data of the virtual body;
a scoring module: and the action change data is used for comparing with preset scoring standard parameters to obtain a comparison difference value, and the action score is determined according to the comparison difference value.
Compared with the prior art, the invention has the following beneficial effects:
1. the sports action scoring method based on the virtual reality technology achieves scoring of sports actions based on the virtual reality technology, solves the problem that errors may occur due to the fact that a coach subjectively judges action deviation in the prior art, and the physical damage of sports personnel is caused.
2. The sports motion scoring method based on the virtual reality technology constructs a virtual body by introducing body information, and scores are carried out according to the virtual body. The introduction of the body information enables the physical quality of the virtual body to be presented as same as the actual situation as possible.
3. According to the sports action scoring method based on the virtual reality technology, the skeletal joints are introduced into the virtual body, so that the method can meet different crowds, not only adults or children, but also normal people or disabled people, can preset a complete set of scoring standard to score the people doing sports actions, and has more accurate data.
4. According to the sports action scoring method based on the virtual reality technology, the optical trajectory and angle change data are introduced, so that the virtual body can be consistent with the specific action height of an actual sports person to be scored when the sports person performs sports actions, and more accurate scoring is achieved.
5. In the method for scoring the sports actions based on the virtual reality technology, in the process of obtaining the comparison difference, the real-time attitude model is constructed through three data, namely the angle change corresponding to each action at each moment and the track characteristic of each action when the real-time attitude model is constructed, and an exponential function in the whole action period is introduced, so that the real-time attitude model can be embodied in the form of an exponential coordinate graph and the real-time attitude change condition at each moment can be embodied.
6. According to the sports motion scoring method based on the virtual reality technology, the program scoring also has a certain degree of deviation, the scoring deviation is calculated based on all points on each track, the deviation has the effect of more accurately obtaining the comparison difference value, and finally the comparison difference value is obtained through the scoring standard parameters.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a flowchart of a method for scoring a sports action based on a virtual reality technology in embodiments 1 to 8 of the present invention;
fig. 2 is a device diagram of a sports motion scoring device based on virtual reality technology in embodiment 9 of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1, the invention relates to a sports action scoring method based on virtual reality technology, comprising the following steps:
creating a three-dimensional scene containing sports elements; the invention creates a three-dimensional scene in advance, sports elements exist in the three-dimensional scene, and the sports elements represent elements of sports equipment and elements of the sports scene so as to assist sports personnel to enable the virtual scene to be close to reality as much as possible when the sports personnel evaluate sports actions.
Acquiring body information of a sports person to be scored, and constructing a virtual body of the sports person to be scored in the three-dimensional scene based on the body information; wherein the body information comprises motion sensing equipment worn by the body of the sports person to be scored.
Acquiring body information of a sports person to be scored; because the scoring of the invention is based on simulation, constructs a virtual body and scores according to the virtual body, the physical quality presentation condition of the virtual body is the same as the actual condition as much as possible, and therefore, the physical information is introduced. Because the body of the invention is to wear the motion sensing device and the virtual reality helmet when scoring, which may affect the motion when scoring, the data devices are also virtualized and loaded on the virtual body. Making the scoring more accurate.
Acquiring motion sensing data of a sports person to be scored when the sports person performs sports motions according to the motion sensing equipment, importing the motion sensing data into the virtual body, and collecting motion change data of the virtual body; the method and the device collect the motion change data of the virtual body, because the virtual body carries out real-time sensing according to the motion of the sports personnel to be scored, the motion change data of the virtual body can be collected to be used as scoring data, and the motion change data of the virtual body is based on a software system, so the motion change data is embodied in a data form, and the data is more accurate compared with a scanning device or a camera for capturing motion.
And comparing the action change data with a preset scoring standard parameter to obtain a comparison difference value, and determining an action score according to the comparison difference value. The final score is obtained by means of comparison, and the score obtained by comparison of data collected by the virtual body is more accurate and can be suitable for various people, such as adults, children and physically disabled people.
The technical scheme has the advantages that the scoring of the sports actions can be realized based on the virtual reality technology, and the scoring can be more accurate and scientific compared with the subjective judgment of people when the scoring is carried out. The invention can also be used for different people, no matter adults and children or physically disabled people, a whole set of complete scoring standard can be preset to score the people doing sports actions.
Example 2
As an embodiment of the present invention, different from other embodiments, the creating a three-dimensional scene including a sports element in the embodiment includes:
acquiring scene data of a sports person to be scored, which needs to be scored; scene data is a data that is relevant to the scene and is also introduced when scoring, in the field of sports such as gymnastics.
According to the scene data, element division is carried out on the scene data from multiple dimensions through preset grading requirements, and divided scene elements are determined. The scoring requirements comprise prop requirements and space requirements, and the space requirements are the spaces required by the persons needing scoring in the whole space to do sports actions.
The multiple dimensions include a time dimension (action posture of sports action of the sports person to be scored at each moment), a space dimension (position of each part of each sports person to be scored on the space, which is used for doing sports action, of each sports person to be scored), a view angle dimension (self view angle and observation view angle of each sports person to be scored when doing action, which are auxiliary for overall observation), a lighting effect dimension (lighting effect is used for observing each position definition condition on a virtual body in a clear manner) and a scoring standard dimension (dimension of each action of each sports person to be scored reaching a standard). And substituting the scene elements into a preset three-dimensional space to form a three-dimensional scene.
The beneficial effects of the technical scheme are that a scene which accords with the score is constructed before scoring the sports personnel, so that the scoring is efficient and accurate, and the data can be acquired more quickly.
Example 3
As an embodiment of the present invention, different from other embodiments, in the step of acquiring body information of a sports person to be scored and constructing a virtual body of the sports person to be scored in the three-dimensional scene based on the body information, the method includes:
and carrying out body detection on the body data of the sports personnel to be scored, and determining body information according to a body detection result. Wherein the content of the first and second substances,
the body detection at least comprises height detection, weight detection, arm length detection, leg length detection, hip-crotch ratio detection, muscle detection and foot size detection.
In body detection, the more comprehensive the body information, the more accurate the data. Thus, the present invention introduces a multitude of body data.
And constructing a three-dimensional coordinate model at the central part of the three-dimensional scene. The three-dimensional coordinate model can lead in the body information in the form of coordinate points and can directly form a spatial three-dimensional structure.
And substituting the body information into a three-dimensional coordinate model to construct a three-dimensional outline model of the sports personnel to be scored. The space three-dimensional structure is filled by human body information, and a virtual body is naturally generated.
And substituting human body characteristics into the three-dimensional outline model according to the three-dimensional outline model to generate a virtual body of the sports personnel to be scored.
The technical scheme has the advantages that the body data are introduced into the three-dimensional coordinate system, the human body characteristics are introduced, and the virtual body is gradually formed, so that the virtual body can better accord with the body condition of the physical sports personnel to be scored.
Example 4
As an embodiment of the present invention, different from other embodiments, in the step of acquiring body information of a sports person to be scored and constructing a virtual body of the sports person to be scored in the three-dimensional scene based on the body information, the method further includes acquiring a bone joint position of the sports person to be scored and constructing a bone joint distribution model according to the bone joint position. The invention needs to import the external body data of the child to be evaluated, and the skeleton joint model belongs to the internal body data.
And judging the bone joint position of the bone joint of the sports personnel to be scored on the virtual body based on the virtual body and the bone joint model, binding the bone joint position with the bone joint distribution model, and adding the corresponding bone joint in the virtual body.
The technical scheme has the beneficial effects that in order to enable data to be more accurate, the skeletal joints are introduced into the virtual body, so that the virtual body can meet different crowds, namely adults, children, normal people and disabled people.
Example 5
As an embodiment of the present invention, different from other embodiments, in the step of acquiring the motion sensing data of the sports person to be scored when doing sports motions according to the motion sensing device in this embodiment, wearing the motion sensing device on the sports person to be scored in advance is included. The motion sensing equipment comprises an optical tracker (mainly used for tracking each point reached by a motion track), an inertial sensor (for acquiring a whole set of motion tracking track), and a joint angle detector (for acquiring an angle change angle of a joint). The optical tracker is used for optically marking the movement of the sports person to be scored. The inertial sensor is used for outputting the optical track of the sports personnel to be scored according to the optical coordinates. The joint angle detector is used for determining angle change data of joints when the sports personnel to be scored move. And determining sensing data according to the optical track and angle change data.
The technical scheme has the beneficial effects that the optical trajectory and angle change data are introduced, so that the virtual body can be consistent with the actual specific action height of a sports person to be scored during sports actions, and further more accurate scoring is obtained.
Example 6
As an embodiment of the present invention, different from other embodiments, the step of importing the motion sensing data into the virtual body and acquiring the motion change data of the virtual body in the embodiment includes:
marking the position of the action sensing data according to the position obtained by the data; the position markers of the motion sensing data mainly mark that each piece of motion sensing data is obtained at that part of the body.
Dividing the sensing data according to positions according to position marks, wherein the sensing data of each position is used as a data sequence; the data of each body part is used as a data sequence, so that data discrimination is facilitated.
Determining a corresponding virtual position of the data sequence on the virtual body according to the virtual body;
establishing a data transmission channel between the virtual position and the data sequence; because the invention collects more data, each data has one channel and is transmitted synchronously, the transmitted data is more time-efficient and faster.
Transmitting the sensing data to the virtual body in real time according to the data transmission channel, and determining the real-time action posture of the virtual body; the virtual body follows the human body to do the same action, so that the real-time action posture of the virtual body is determined, namely the change of the data of the virtual body when the virtual body acts.
And determining the motion change data of the virtual body according to the real-time motion attitude of the virtual body. The change of the virtual volume whole data is also the action change data.
The technical scheme has the advantages that the data channel is established, so that the data transmission is quicker, and the synchronous transmission of the data can be realized. Further, the action change of the virtual body is to directly collect data when the action change of the virtual body is performed.
Example 7
As an embodiment of the present invention, different from other embodiments, in the step of comparing the motion variation data with a preset scoring standard parameter and obtaining a comparison difference value in the embodiment, the step includes:
according to the action change data, constructing a real-time posture model of the virtual body in a scoring time period:
wherein, wi，tAn action position parameter corresponding to the ith action at the t moment is shown; thetaiRepresenting an action change angle corresponding to the ith action; giRepresenting the track characteristic corresponding to the ith action; delta represents a posture deviation coefficient of the virtual body and the sports personnel to be scored; 1, 2, 3 … … n; n represents the total number of actions; t represents a scoring period;
acquiring a preset scoring standard parameter, and determining a scoring deviation:
wherein d isi，jThe position characteristics of the jth track point of the track corresponding to the ith action are represented; j is 1, 2, 3 … … m; m represents the total number of track points of each track of the action; ρ represents a score deviation;
according to the grading deviation, obtaining a comparison difference value:
wherein, B represents a scoring criterion parameter; p denotes a contrast difference.
The working principle and the beneficial effect of the technical scheme are that in the process of obtaining the comparison difference value, the real-time attitude model is constructed by three data of each moment and each action position, the angle change corresponding to each action at each moment and the track characteristic of each action, and an exponential function in the whole action period is introduced, so that the real-time attitude model can be embodied in the form of an exponential coordinate graph and the real-time attitude change condition at each moment can be embodied. The scoring deviation is obtained because a certain degree of deviation exists even if scoring is carried out through a program, and the deviation is only as small as possible and does not exist. Therefore, the invention calculates the scoring deviation based on all points on each track, and the deviation is used for more accurately obtaining the contrast difference value, and finally obtaining the contrast difference value through the scoring standard parameters.
Example 8
As an embodiment of the present invention, different from the other embodiments, in the determining the action score according to the comparison difference in the embodiment, the determining the action score includes:
according to the comparison difference, determining the standard reaching rate of the whole set of sports actions and the standard sports actions of the sports personnel to be scored; the contrast deviation can only reflect the deviation between data, and after the deviation is introduced into each action, the standard reaching rate of each action can be judged.
And taking the standard reaching rate as the action score of the whole set of sports actions of the sports personnel to be scored.
Example 9
The sports motion scoring device based on virtual reality technology provided by this embodiment, as shown in fig. 2, includes:
a three-dimensional creation module: for creating a three-dimensional scene containing sports elements; the invention creates a three-dimensional scene in advance, sports elements exist in the three-dimensional scene, and the sports elements represent elements of sports equipment and elements of the sports scene so as to assist sports personnel to enable the virtual scene to be close to reality as much as possible when the sports personnel evaluate sports actions.
A virtual body construction module: the system comprises a virtual body, a score generation module, a score display module and a score display module, wherein the virtual body is used for acquiring body information of a sports person to be scored and constructing a virtual body of the sports person to be scored in the three-dimensional scene based on the body information;
virtual volume data acquisition module: the system comprises a virtual body, a score acquisition module, a score analysis module and a score analysis module, wherein the score acquisition module is used for acquiring motion sensing data of a sports person to be scored when the sports person does sports motions, importing the motion sensing data into the virtual body and acquiring motion change data of the virtual body; the body information of the sports personnel to be scored is obtained, because the scoring of the invention is based on simulation, a virtual body is constructed, and the scoring is carried out according to the virtual body, the body quality presenting condition of the virtual body is the same as the actual condition as much as possible, and the body information is introduced. Because the body of the invention is to wear the motion sensing device and the virtual reality helmet when scoring, which may affect the motion when scoring, the data devices are also virtualized and loaded on the virtual body. Making the scoring more accurate. The method and the device collect the motion change data of the virtual body, because the virtual body carries out real-time sensing according to the motion of the sports personnel to be scored, the motion change data of the virtual body can be collected to be used as scoring data, and the motion change data of the virtual body is based on a software system, so the motion change data is embodied in a data form, and the data is more accurate compared with a scanning device or a camera for capturing motion.
A scoring module: and comparing the motion change data with a preset scoring standard parameter to obtain a comparison difference value, and determining the motion score according to the comparison difference value. The final score is obtained by means of comparison, and the score obtained by comparison of data collected by the virtual body is more accurate and can be suitable for various people, such as adults, children and physically disabled people.
Wherein the body information comprises motion sensing equipment worn by the body of the sports person to be scored. And acquiring motion sensing data of the sports personnel to be scored when doing sports motions according to the motion sensing equipment.
The beneficial effects of the above technical scheme are: the invention can realize the scoring of the sports action based on the virtual reality technology, and the scoring can be more accurate and scientific compared with the subjective judgment of people when the scoring is carried out. The invention can also be used for different people, no matter adults and children or physically disabled people, a whole set of complete scoring standard can be preset to score the people doing sports actions.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. A sports motion scoring method based on a virtual reality technology is characterized by comprising the following steps:
creating a three-dimensional scene containing sports elements;
acquiring body information of a sports person to be scored, and constructing a virtual body of the sports person to be scored in the three-dimensional scene based on the body information;
acquiring motion sensing data of a sports person to be scored when the sports person performs sports motions, importing the motion sensing data into the virtual body, and collecting motion change data of the virtual body;
and comparing the action change data with a preset scoring standard parameter to obtain a comparison difference value, and determining an action score according to the comparison difference value.
2. A method as claimed in claim 1, wherein the step of creating a three-dimensional scene containing sports elements comprises:
acquiring scene data of a sports person to be scored, which needs to be scored;
according to the scene data, element division is carried out on the scene data from multiple dimensions through a preset grading requirement, and divided scene elements are determined; wherein the content of the first and second substances,
the scoring requirements comprise prop requirements and space requirements;
the plurality of dimensions include a time dimension, a space dimension, a view dimension, a lighting effect dimension, and a scoring criteria dimension;
and substituting the scene elements into a preset three-dimensional space to form a three-dimensional scene.
3. A virtual reality technology-based sports motion scoring method as claimed in claim 1 or 2, wherein the step of obtaining physical information of a sports person to be scored and constructing a virtual body of the sports person to be scored in the three-dimensional scene based on the physical information comprises:
carrying out body detection on the body data of the sports personnel to be scored, and determining body information according to a body detection result;
constructing a three-dimensional coordinate model at the central part of the three-dimensional scene;
substituting the body information into a three-dimensional coordinate model to construct a three-dimensional outline model of the sports personnel to be scored;
substituting human body characteristics into the three-dimensional outline model according to the three-dimensional outline model to generate a virtual body of the sports personnel to be scored; wherein the content of the first and second substances,
the body detection at least comprises height detection, weight detection, arm length detection, leg length detection, hip-crotch ratio detection, muscle detection and foot size detection.
4. A virtual reality technology-based sports motion scoring method as claimed in claim 3, wherein in the step of obtaining body information of a sports person to be scored and constructing a virtual body of the sports person to be scored in the three-dimensional scene based on the body information, the method further comprises:
acquiring the positions of the bone joints of the sports personnel to be scored, and constructing a bone joint distribution model according to the positions of the bone joints;
and judging the bone joint position of the bone joint of the sports personnel to be scored on the virtual body based on the virtual body and the bone joint model, binding the bone joint position with the bone joint distribution model, and adding the corresponding bone joint in the virtual body.
5. A sports motion scoring method based on virtual reality technology according to any one of claims 1-4, wherein the body information includes motion sensing equipment worn by the body of the sports person to be scored, and motion sensing data of the sports person to be scored is obtained through the motion sensing equipment when the sports motion is performed.
6. A sports motion scoring method based on virtual reality technology as claimed in any one of claims 1 to 5, wherein the step of obtaining motion sensing data of a sports person to be scored while doing sports motion according to the motion sensing device comprises:
wearing motion sensing equipment on the sports personnel to be scored in advance, carrying out optical marking on the motion of the sports personnel to be scored through the motion sensing equipment, and outputting the optical track of the sports personnel to be scored according to the optical coordinates; determining angle change data of joints when the child to be evaluated moves;
and determining sensing data according to the optical track and angle change data.
7. A virtual reality technology-based sports motion scoring method as claimed in any one of claims 1 to 6, wherein the step of importing the motion sensing data into the virtual body and collecting motion change data of the virtual body comprises:
marking the position of the motion sensing data according to the position of data acquisition;
dividing the motion sensing data according to positions according to the position marks, wherein the motion sensing data of each position is used as a data sequence;
determining the corresponding virtual position of the data sequence on the virtual body according to the virtual body;
establishing a data transmission channel between the virtual position and the data sequence;
according to the data transmission channel, transmitting the motion sensing data to the virtual body in real time, and determining the real-time motion posture of the virtual body;
and determining the motion change data of the virtual body according to the real-time motion attitude of the virtual body.
8. A sports motion scoring method based on virtual reality technology as claimed in any one of claims 1-7, wherein the step of comparing the motion variation data with preset scoring criterion parameters to obtain a comparison difference value comprises:
according to the action change data, constructing a real-time posture model of the virtual body in a grading time period:
wherein, wi，tAn action position parameter corresponding to the ith action at the t moment is shown; thetaiIndicating that the ith action corresponds toAn action change angle; giRepresenting the track characteristic corresponding to the ith action; delta represents a posture deviation coefficient of the virtual body and the sports personnel to be scored; 1, 2, 3 … … n; n represents the total number of actions; t represents a scoring period;
acquiring a preset scoring standard parameter, and determining a scoring deviation:
wherein d isi，jThe position characteristics of the jth track point of the track corresponding to the ith action are represented; j is 1, 2, 3 … … m; m represents the total number of track points of each track of the action; ρ represents a score deviation;
according to the grading deviation, obtaining a comparison difference value:
wherein, B represents a scoring criterion parameter; p denotes a contrast difference.
9. A method as claimed in any one of claims 1 to 8, wherein said step of determining a score of a motion based on said comparison difference comprises:
according to the comparison difference value, determining the standard reaching rate of the whole set of sports actions of the sports personnel to be scored and the standard sports actions;
and taking the standard reaching rate as the action score of the whole set of sports actions of the sports personnel to be scored.
10. A sports action scoring device based on virtual reality technology, comprising:
a three-dimensional creation module: for creating a three-dimensional scene containing sports elements;
a virtual body construction module: the system comprises a virtual body, a score generation module, a score display module and a score display module, wherein the virtual body is used for acquiring body information of a sports person to be scored and constructing a virtual body of the sports person to be scored in the three-dimensional scene based on the body information;
virtual volume data acquisition module: the system comprises a virtual body, a score acquisition module, a score analysis module and a score display module, wherein the score acquisition module is used for acquiring action sensing data of a sports person to be scored when the sports person does sports actions, importing the action sensing data into the virtual body and acquiring action change data of the virtual body;
a scoring module: and the action change data is used for comparing with preset scoring standard parameters to obtain a comparison difference value, and the action score is determined according to the comparison difference value.
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