JP2005111138A - Motor skill group learning support device - Google Patents

Abstract

[Purpose] The present invention supports voluntary sports skills practice, particularly for groups, using visual information in the field of education.
[Structure] Means for registering personal information of an arbitrary motor skill learner among a plurality of motor skill learners, and accumulating exercise videos of physical exercise in the practice video accumulating means 2 and reproducing them so as to display them for display Having It has means for extracting movement of an arbitrary body part from the practice video storage means 2 and storing it as a video and reproducing it so as to display it on the analysis image display means. Have a means to store and reproduce the model physical motion video. Having means for simultaneously reproducing and displaying the three types of stored video. In the case where personal information registration and physical exercise practice videos have already been accumulated in any other motor skill learner other than the arbitrary motor skill learner, it can be arbitrarily reproduced.
[Selection] Figure 2

Description

  The present invention is an athletic skill group learning support device capable of supporting voluntary sports skills and the like, particularly for a group, using visual information in the education field. The present invention also relates to an athletic skill group learning support device that can be used for skill acquisition support with physical exercise in the workplace.

Traditionally, for example, as described in “Introduction to Kinetic Psychology” by Iwao Matsuda and Takashi Sugihara (1987, Taishukan Shoten), when trying to convey the contents of motor movements, it is necessary only to explain in words. There are many parts that cannot be exhausted, and explanation using visual information is an effective means of communication. Therefore, instruction using visual information is always performed in motor skill instruction. Specifically, examples are illustrations, illustrations, photographs and films, VTRs, and recently, the use of digital video. Instructions are given using both verbal explanations and visual information. In the technical guidance using these visual information, the following three functions are included depending on how they are used.
(1) When used to indicate what the action to be practiced from now on (model presentation function),
(2) When used for the purpose of notifying the practitioner's movements to the person himself (feedback function),
(3) When used to motivate practice (motivation function)
Of course, these functions do not act independently, but it is considered that different principles are involved in each function.

In recent years, in sports training, IT has begun to be used for scientific training, such as computer image processing and image analysis technology. For example, a movement of a physical motion of a sports player is taken into a computer and a motion of a joint or the like is analyzed. Attempts have also been made to display analysis results in an easy-to-understand manner for athletes using computer graphics. Regarding these, there are documents of the following analysis examples.
M. Feltner and J. Depera, “Dynamics of the Shoulder and Elbow Joints of the Throwing Arm During Baseball Pitch,” International Journal of Biomechanics, 2, pp.235-259, 1985 J. Hodqins et.al, “Animating Human Athletics "Proc. SIGRAPH95, pp71-78, 1995

Japanese Patent Application Laid-Open No. 10-149445 “Body Motion Analysis Visualization Device” Japanese Patent Application Laid-Open No. 10-111940 “Body Feature Point Detection Device and Body Motion Analysis Device” JP-T-2001-509039 “Personal golf lesson video creation method and system” In Patent Documents 1 and 2, in addition to exercise images, physical exercise simulation and motion capture are displayed together with optimal physical exercise and exemplary physical exercise. Proposed means for the device to do. Patent Document 3 proposes a means for creating a personalized golf lesson video tape by synthesizing a photographed golf swing image and a professional video.

Such a device is effective for providing functions such as model presentation, feedback, and motivation for training professional athletes, top-level athletes, and people who can afford time and money. In school education, sports training for a large group of people has the following difficulties.
Expensive software and equipment are required.
In order to introduce it to social education and school education for a large group of people, it is necessary to have a large number of equipment of the same type.
In order to effectively respond to a large number of practitioners with various physical strengths, motivations, and training histories, further upgrading of software and equipment is necessary.

By the way, the present invention is a means for solving the following problems necessary for improving the educational effect and efficiency by utilizing IT in sports training for a large number of groups in social education and school education. Can be provided.
First, it does not require expensive software and equipment, and can be realized economically by combining inexpensive AV equipment and ordinary school education equipment. In addition, it is possible to accommodate a large number of people without having the same number of equipment. Furthermore, it is possible to effectively deal with a large number of practitioners having various physical strengths, motivations, and training histories by effectively utilizing the practitioner's feedback effect based on the video information, with the least amount of equipment. In addition, in acquiring sports skills, it is important to use additional feedback as well as practice physical exercise itself. Additional feedback is information added from the outside regarding exercise or the like, and is used to improve the results of the next trial. For example, the instructor can convey the deviation of the crossing position of the long jump in words, or show a playback image of the body movement.

Therefore, as a result of earnest and research to solve the above-mentioned problems, the inventor registered the identity information of any motor skill learner among a plurality of motor skill learners, and the physical exercise of the invention of claim 1. The practice video is stored in the practice video storage means, read out from the practice video storage means and reproduced so as to be displayed on the practice video display means, and the movement of an arbitrary body part is extracted from the practice video storage means, And reproducing means so as to be displayed and displayed on the analysis image display means, and means for accumulating the model body motion video in the model video storage circuit and playing it so as to be displayed on the model performance video display unit, It has a means to reproduce and display three kinds of stored images at the same time, and personal information registration and physical exercise practice have already been carried out in any other motor skill learner except the above-mentioned motor skill learner. In case of storing an image, by which the motor skills group learning support apparatus characterized by comprising as can be reproduced arbitrarily, it is obtained by solving the above problems.

  Further, in the above-mentioned configuration, the movement of the arbitrary body part is photographed by one practice video input means, two-dimensional image analysis is performed and the two-dimensional motion analysis video means is displayed. The problem was solved by using a motor skill group learning support device. Further, in the above-described configuration, the movement of the arbitrary body part is photographed from different directions by two practice video input means, analyzed in three dimensions, and displayed on the three-dimensional motion analysis video means. The above-mentioned problem is solved by using the motor skill group learning support device characterized by the above.

  According to the first aspect of the present invention, the learner refers to video information related to physical exercise practice from various angles, and provides means for obtaining feedback information and knowledge to himself / herself. Can be realized more easily. In the second aspect of the present invention, a single practice video input means is used to extract the movement of any body part, store it as a video, and analyze and display the two-dimensional image. In particular, the movement of an arbitrary part can be viewed as a third party, which can lead to improvement of the motor skill. Further, in the invention of claim 3, the motion of an arbitrary part is obtained by photographing from two different directions with two practice video input means, analyzing the three-dimensional image, and displaying it on the three-dimensional motion analysis video means. As a tripartite, it can be viewed more objectively to improve motor skills.

In particular, in school education, instructors show model performances and promote learning of practical skills, but as the number of practitioners increases, observation of model performances can only be done from a limited viewpoint. In addition, there is a drawback that it is impossible to grasp how the physical movement of the person deviates from the ideal movement. In the present invention, the following learning functions can be realized for each practitioner at their own pace using visual information.
(1) Show what the action you are going to practice from now on (model presentation function)
(2) Inform the trainee of the shortcomings of the practicer's movement (feedback function),
(3) There is a motivation to exercise (motivation function).
As described above, the present invention can realize sports training in social education and school education for a large group of people with inexpensive equipment. In addition, using a single device, it is effective to actively utilize the feedback function, model presentation function, and motivation function of the video information practitioner for a large number of practitioners with various physical strength, motivation, and training history. Can provide practice support.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing the overall configuration of the present invention. 2 and 3 are configuration diagrams of an example in which the present invention is particularly applied to a golf club swing exercise skill practice support device. Reference numeral 1 denotes practice video input means as a video camera capable of digital processing for taking pictures of physical exercises of exercise skill practitioners. The practice video input means 1 uses a single video camera. Reference numeral 2 denotes practice video storage means for storing (storing) the video information of the practitioner photographed by the practice video input means 1 via an input / output device / storage device control processing unit (CPU: MPU) 20. All of the accumulated videos of group trainers are stored. Another practitioner who has finished taking a picture while sequentially taking practice images from the practice video input means 1 can use this to take out his own video already accumulated. The practitioner checks the video of the practice video input means 1 as a video camera while checking the practice video monitor means 1a.

  Reference numeral 3 denotes personal information registration means for registering information for individual address numbers, practice video identifications, and searches of each practitioner. By performing this registration, the registered practitioner video reproduction start means 11 can access. Reference numeral 4 denotes practice video control means for controlling the activation of the practice video input means 1 based on the input of the practitioner and transferring information for practice video identification and search to the practice video storage means 2 It is. Reference numeral 5 denotes model performance image storage means for storing in advance video information of model physical exercises of professionals or advanced players in the exercise field. In this case, the model performance video storage means 5 may be provided detachably with a ROM card or the like. The practice video stored in the practice video storage means 2 and the model performance video of the model performance video storage means 5 are displayed on different monitors as will be described later, but the two videos (video data). May be divided into right and left halves on one screen for practice and model video composition.

  6 is a two-dimensional image analysis means, which is a two-dimensional image analysis circuit that extracts the movement of the main body part from the photographed image and stores it as an image. Can be shown. The two-dimensional image analysis means 6 is realized by a PC (personal computer) equipped with commercially available two-dimensional moving image moving measurement software, two-dimensional real-time software, or other two-dimensional image solution software. In the two-dimensional image analysis means 6, when the designated point is recognized in a certain frame of the moving image, the movement amount of the point is obtained by examining where it is reflected in the next frame. Specifically, a local feature of a predetermined point is extracted, and a region having a similar local feature in the next frame is searched to calculate movement data of the designated point.

  In particular, the three-dimensional image analysis means 7 calculates the amount of movement in the three-dimensional space from the front two-dimensional image and the side two-dimensional image. First, a front two-dimensional image (referred to as a provisional XY space image) and a side two-dimensional image (referred to as a provisional YZ space image) are processed independently. When a point designated in each two-dimensional image is recognized in a certain frame of the video, the movement amount of the point is obtained by examining where the point is reflected in the next frame. Specifically, a local feature at a predetermined point is extracted, and a region having a similar local feature in the next frame is searched. In this way, the movement in each two-dimensional space (XY space and YZ space) is calculated. Next, the movement in the three-dimensional space is calculated by matching data on two two-dimensional spaces having different spatial dimensions.

  Reference numeral 8 denotes body part designation information input means, which starts the reproduction by the registered practitioner video reproduction start means 11 and then acquires the above-mentioned practice video for acquiring additional feedback information for improving the motor skill by reproducing the recorded video. The image analysis body part designation information is input from the practice video stored in the storage means 2. By this input, the two-dimensional image analysis means 6 or the three-dimensional image analysis means 7 accumulates (stores) as two-dimensional or three-dimensional data. In parallel, the practice video storage means 2 selects the stored videos of the practitioner and prepares for playback. When the processing of the two-dimensional image analysis means 6 or the three-dimensional image analysis means 7 is completed, the two-dimensional or three-dimensional feedback video control means 9 is operated by the practice video storage means 2, the two-dimensional image analysis means 6 or the three-dimensional image analysis. A playback synchronization trigger is sent to the means 7 and the model performance video storage means 5 to provide additional feedback video information provision.

  Reference numeral 11 denotes a registered practitioner reproduction start means, which is a means for a practicing video shooting end person to play back personal information and recorded video, such as a start button. Reference numeral 12 denotes practice video display means, which is a practice video display section that reproduces and displays a specified video from the videos stored in the practice video storage means 2. Reference numeral 13 denotes an exemplary performance video display means, which is an exemplary performance video display unit that reproduces and displays the video data stored in the exemplary performance video storage means 5. Reference numeral 14 denotes a two-dimensional motion analysis video display means, which is a two-dimensional motion analysis video display section for reproducing and displaying the analysis video designated from the video data stored in the two-dimensional image analysis means 6.

  As described above, the first embodiment has a configuration in which the two-dimensional image analysis means 6 and the two-dimensional motion analysis video display means 14 are provided. First, the effect | action of 1st Embodiment is demonstrated based on FIG.2 and FIG.3. In front of the practice video input means 1 as one video camera, as shown in Table 1 of FIG. 2, the practice person D sequentially takes pictures of the golf club swing motion. First, the practitioner D registers information for identifying and searching for practice videos in the personal information registration means 3 before shooting, and determines the shooting position with the practice video monitoring means 1a. The practice video control means 4 controls the activation of the practice video input means 1 based on the input of the practitioner and transfers the information to the practice video storage means 2 for identifying and searching for the practice video. After completing the shooting, the trainee D inputs information for selecting his / her video from the stored video to the two-dimensional feedback video control means 9. As a result, the video of the practitioner stored in the two-dimensional image analysis means 6 is selected and an initial screen is presented on the monitor of the feedback video control means 9. The person who has finished imaging inputs image analysis body part designation information for acquiring additional feedback information to the monitor of the feedback video control means 9. Based on this information, the two-dimensional image analysis means 6 extracts the movement of the designated body part and stores it as two-dimensional image data.

  With such a mechanism, the two-dimensional image analysis means 6 provides the motion analysis information of the body part designated by the person who has completed the practice. The model performance video storage means 5 stores video information of a model swing of a golf club. The practice video display means 12, the two-dimensional motion analysis video display means 14, and the model performance video display means 13 are connected to the practice video storage means 2, the two-dimensional image analysis means 6, and the model performance video storage means 5, respectively. The practice video display unit 12 displays the playback video of the person who has completed the practice stored in the practice video storage unit 2. The model performance video display means 13 reproduces and displays the video data stored in the model performance video storage means 5. The two-dimensional motion analysis video display means 14 reproduces and displays the analysis video of the two-dimensional image analysis means 6. Specifically, as shown in FIG. 2, the movement of the arm of the golf pad becomes a dotted line and represents the movement direction. The practitioner uses the two-dimensional feedback video control means 9 to set the video playback speed of the practice video storage means 2, the two-dimensional image analysis means 6, and the model performance video storage means 5, stop, rewind, and add Feedback video information can be used effectively. In this way, in the first embodiment of FIGS. 1 to 3, the practitioner needs feedback information for voluntarily correcting the golf club swing from his practice video, model swing video, and important point motion video. Can be obtained.

  Here, the practice video display means 12 and the two-dimensional motion analysis video display means 14 provide knowledge of result (KR). The model performance video display means 13 provides knowledge of performance (KP). Table 1 (see FIG. 2) shows the procedure for using this apparatus in the practice process in the group learning of learners A, B, C, and D and the operation procedure of each circuit in the apparatus corresponding thereto. The learner proceeds with learning in a cycle of shooting the practice video, acquiring additional feedback information after the shooting, practicing the practice, ending the practice, and standby for shooting the practice video. In this example, the group learning is performed by four people, but can be applied to group learning for a larger number of people by allocating the practice time of each practitioner and the usage time of the apparatus.

  Next, in the second embodiment of FIGS. 4 to 6, the two-dimensional image analysis means 6 and the two-dimensional motion analysis video display means 14 in the first embodiment are replaced with the three-dimensional image analysis means 7 and the three-dimensional motion analysis video. The display means 15 is provided and converted, and two video cameras are used as the practice video input means 1. For this reason, the video synthesis means 10 is used to synthesize each video from the practice video input means 1 and 1 as two video cameras, and the video is checked by the practice video monitor means 1a.

  The three-dimensional image analysis means 7 extracts the movements of the main body parts from the captured images from the practice video input means 1 and 1 as two video cameras and accumulates them as images. It can show how the given body point has moved in time. The three-dimensional image analysis means 7 is a PC equipped with a three-dimensional image solution software such as a commercially available digital video input board, a commercially available three-dimensional moving image moving measurement software, a commercially available three-dimensional real-time lacquer software. It has been realized. Further, the three-dimensional motion analysis video display means 15 is a three-dimensional motion analysis video display section for reproducing and displaying the analysis video specified from the video data stored in the three-dimensional image analysis means 7. Specifically, as shown in FIG. 5, the three-dimensional state of the movement of the arm of the golf putt represents a movement direction. The practice video stored in the practice video storage means 2 and the model performance video stored in the model performance video storage means 5 are displayed on different monitors, but the two videos (video data) are displayed as one. In some cases, the practice / exemplary video composition is stored in the exemplary performance composite video storage means divided on the screen and displayed on the exemplary performance video display means 13.

  In the three-dimensional image analysis means 7, the amount of movement in the three-dimensional space is obtained from the front two-dimensional image and the side two-dimensional image. First, a front two-dimensional image (referred to as a provisional XY space image) and a side two-dimensional image (referred to as a provisional YZ space image) are processed independently. When a point designated in each two-dimensional image is recognized in a certain frame of the video, the movement amount of the point is obtained by examining where the point is reflected in the next frame. Specifically, a local feature at a predetermined point is extracted, and a region having a similar local feature in the next frame is searched. In this way, the movement in each two-dimensional space (XY space and YZ space) is calculated. Next, the movement in the three-dimensional space is calculated by matching data on two two-dimensional spaces having different spatial dimensions.

  The operation is performed from the captured images from the practice video input means 1 and 1 as two video cameras, but is the same as in the first embodiment. In particular, the practitioner who has completed the shooting uses the three-dimensional feedback video control means 9 to set or stop the video reproduction of the practice video storage means 2, the three-dimensional image analysis means 7, and the model performance video storage means 5. Or by rewinding and additionally using feedback video information effectively. The viewpoint change of the 3D analysis video of the 3D imaging analysis device 7 can be flexibly performed with a human interface such as a keyboard and a mouse. Thus, in the second embodiment shown in FIGS. 4 to 6, the practitioner needs feedback information for voluntarily correcting the golf club swing from his practice video, model swing video, and important point motion video. Can get.

  Here, the practice video display means 12 and the three-dimensional motion analysis video display means 15 in FIG. 4 provide knowledge (result of knowledge; KR). The model performance video display means 13 provides knowledge of performance (KP). In particular, Table 2 in FIG. 6 shows a procedure for using this apparatus and a corresponding operation procedure of each circuit in the apparatus during the learner's practice process in the group learning of learners A, B, C, and D. The learner proceeds with learning in a cycle of shooting the practice video, acquiring additional feedback information after the shooting, practicing the practice, ending the practice, and standby for shooting the practice video. In this example, the group learning is performed by four people, but can be applied to group learning for a larger number of people by allocating the practice time of each practitioner and the usage time of the apparatus.

  In the first and second embodiments as described above, in particular, other practitioners other than the practicing photographer can use the playback device if the necessary information is registered in the personal information registration means 3. Use it to display a self-practice video, a model physical exercise video, and an image of the movement of any body part at the same time, targeting a large group of people in social education and school education It can be applied to group learning for many people in sports training. Furthermore, the present invention does not require expensive software and equipment, and can be realized economically by combining inexpensive AV equipment and ordinary school education equipment. In addition, it is possible to accommodate a large number of people without having the same number of equipment. In particular, learning support can be provided to the group with at least the equipment for the practicing photographer and the equipment for playback. Furthermore, there is an advantage that a large number of practitioners having various physical strengths, motivations, and training histories can be effectively dealt with with minimal equipment by actively utilizing the feedback effect of the practitioner by the video information.

  INDUSTRIAL APPLICABILITY The present invention can realize sports training in social education and school education for a large group of people with inexpensive equipment. In particular, it is equipped with a video information practitioner's feedback function and model presentation function for a large number of practitioners with various physical strengths, motivation, and training histories with a single device, and it has extremely high industrial applicability. .

It is a block diagram of a 1st embodiment of the present invention. 1 is a schematic diagram of a first embodiment of the present invention. It is a flowchart of a 1st embodiment of the present invention. It is a block diagram of a 2nd embodiment of the present invention. It is a schematic diagram of 2nd Embodiment of this invention. It is a flowchart of 2nd Embodiment of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Practice video input means, 2 ... Practice video storage means, 3 ... Personal information registration means, 5 ... Model performance video storage means, 6 ... Two-dimensional image analysis means, 7 ... Three-dimensional image analysis means, 12 ... Practice video display Means, 13 ... Model performance video display means, 14 ... Two-dimensional motion analysis video display means, 15 ... Three-dimensional motion analysis video display means

Claims (3)

Registering personal information of an arbitrary motor skill learner among a plurality of motor skill learners, accumulating exercise videos of physical exercise in practice video storage means, reading out from the practice video storage means, and displaying them on practice video display means Means to play,
Means for extracting movement of an arbitrary body part from the practice video storage means, storing it as a video, and reproducing it for display on the analysis image display means;
A model body motion video is stored in the model video storage circuit, and is reproduced so as to be displayed on the model performance video display unit,
It has means for reproducing and displaying the three kinds of stored videos at the same time, and the personal information registration and physical exercise practice videos have already been stored in any other motor skill learner except the arbitrary motor skill learner. In this case, the motor skill group learning support device is characterized in that it can be arbitrarily reproduced.   2. An exercise according to claim 1, wherein the movement of the arbitrary body part is photographed by one practice video input means, analyzed two-dimensionally, and displayed on a two-dimensional motion analysis video means. Skill group learning support device.   2. The motion of the arbitrary body part according to claim 1, wherein the movement of the arbitrary body part is photographed from two different directions by two practice video input means, analyzed three-dimensionally, and displayed on the three-dimensional motion analysis video means. Motor skill group learning support device.