Physical education teaching auxiliary system based on motion identification technology and implementation method of physical education teaching auxiliary system

Abstract

The invention provides a physical education teaching auxiliary system based on a motion identification technology and an implementation method of the physical education teaching auxiliary system. The system is applicable to a personal computer (PC) or an embedded host. The system comprises a movement data collection module, a movement data acquisition module, an identification and training module and a virtual teaching environment module. The device is characterized in that: a micro-inertia measurement unit and an inertia parameter extraction unit are arranged in the movement data collection module; and a movement information resolving unit transmits data which is output by the inertia parameter extraction unit to a multi-sensor data fusion unit for resolving. The movement situation of a target is reflected comprehensively in an inertia tracking mode and an optical tracking mode, so a tracking range is effectively expanded, measurement accuracy is improved, and the problems that the integral information of the target cannot be acquired in the inertia tracking mode, complicated movement identification cannot be performed and sensitivity is poor are solved. A brand new teaching mode is provided for physical education teaching, and a physical education teaching method is digitalized, multi-media and scientifically standardized.

Description

technical field

[0001] The invention relates to the fields of human-computer interaction, action recognition and computer-assisted teaching, in particular to a construction method of a physical education teaching auxiliary system. Background technique

[0002] At present, the methods of motion tracking are divided into: inertial tracking, optical tracking, force and mechanical tracking, electromagnetic tracking, acoustic tracking and so on according to different sensing elements. At present, the commonly used motion tracking technologies in the field of human-computer interaction are inertial tracking technology and optical tracking technology. Inertial tracking technology, by setting an inertial measurement unit on the target to measure data such as acceleration and angular velocity, based on this, use mathematical tools to solve the problem and obtain the motion of the target. The characteristics of inertial tracking are simple implementation and strong anti-interference;...

Examples

Embodiment 1

[0056] Example 1, such as figure 1 , Figure 7 As shown, a sports teaching auxiliary system based on motion recognition technology is used for PC or embedded host, and it includes a motion data acquisition module 1, a motion data acquisition module 2, an identification and training module 3, and a virtual teaching environment module 3;

[0057] Such as figure 2 As shown, the motion data acquisition module 1 further includes: a specific wavelength point light source 11, no less than two cameras 12;

[0058] Such as image 3 As shown, the motion data acquisition module 2 further includes: an image feature extraction unit 21, a three-dimensional space positioning unit 22, a motion information calculation unit 23, and a multi-sensor data fusion unit 24;

[0059] The motion data acquisition module 2, wherein the three-dimensional space positioning unit 22 utilizes the position of the marker point to be imaged in the two cameras 12, and uses the binocular vision algorithm to obt...

Embodiment 2

[0069] Example 2 as figure 1 , Figure 7 As shown, a sports teaching auxiliary system based on motion recognition technology is used for PC or embedded host, which includes a sports data acquisition module 1, a sports data acquisition module 2, an identification and training module 3, and a virtual teaching environment module 4.

[0070] The target moves in front of the display device 44, and the micro-inertial measurement unit 13 bound to the target will measure and obtain a set of motion data, which will be processed by the inertial parameter extraction unit 14 to obtain the motion inertial parameters, which will be transmitted to the set via the wireless transmission module. The motion information resolving unit 23; the specific wavelength point light source 11 in the motion data collection module 1 is a point light source that emits monochromatic light, and the image acquisition device is no less than two visible light cameras, and the optical signal of the specific wavele...

technical field

[0001] The invention relates to the fields of human-computer interaction, action recognition and computer-assisted teaching, in particular to a construction method of a physical education teaching auxiliary system. Background technique

[0002] At present, the methods of motion tracking are divided into: inertial tracking, optical tracking, force and mechanical tracking, electromagnetic tracking, acoustic tracking and so on according to different sensing elements. At present, the commonly used motion tracking technologies in the field of human-computer interaction are inertial tracking technology and optical tracking technology. Inertial tracking technology, by setting an inertial measurement unit on the target to measure data such as acceleration and angular velocity, based on this, use mathematical tools to solve the problem and obtain the motion of the target. The characteristics of inertial tracking are simple implementation and strong anti-interference;...

Examples

Embodiment 1

[0056] Example 1, such as figure 1 , Figure 7 As shown, a sports teaching auxiliary system based on motion recognition technology is used for PC or embedded host, and it includes a motion data acquisition module 1, a motion data acquisition module 2, an identification and training module 3, and a virtual teaching environment module 3;

[0057] Such as figure 2 As shown, the motion data acquisition module 1 further includes: a specific wavelength point light source 11, no less than two cameras 12;

[0058] Such as image 3 As shown, the motion data acquisition module 2 further includes: an image feature extraction unit 21, a three-dimensional space positioning unit 22, a motion information calculation unit 23, and a multi-sensor data fusion unit 24;

[0059] The motion data acquisition module 2, wherein the three-dimensional space positioning unit 22 utilizes the position of the marker point to be imaged in the two cameras 12, and uses the binocular vision algorithm to obt...

Embodiment 2

[0069] Example 2 as figure 1 , Figure 7 As shown, a sports teaching auxiliary system based on motion recognition technology is used for PC or embedded host, which includes a sports data acquisition module 1, a sports data acquisition module 2, an identification and training module 3, and a virtual teaching environment module 4.

[0070] The target moves in front of the display device 44, and the micro-inertial measurement unit 13 bound to the target will measure and obtain a set of motion data, which will be processed by the inertial parameter extraction unit 14 to obtain the motion inertial parameters, which will be transmitted to the set via the wireless transmission module. The motion information resolving unit 23; the specific wavelength point light source 11 in the motion data collection module 1 is a point light source that emits monochromatic light, and the image acquisition device is no less than two visible light cameras, and the optical signal of the specific wavele...

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