CN214122904U - Dance posture feedback device - Google Patents
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- CN214122904U CN214122904U CN202022577356.5U CN202022577356U CN214122904U CN 214122904 U CN214122904 U CN 214122904U CN 202022577356 U CN202022577356 U CN 202022577356U CN 214122904 U CN214122904 U CN 214122904U
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Abstract
The application relates to the technical field of electronic teaching, discloses a dance posture feedback device, include: the 3D camera is used for collecting motion images of a dancer, and the motion images comprise three-dimensional depth information of preset joints of the dancer; the installation main part, the last top-down of installation main part is equipped with three installation area, and the installation area at top is used for setting up the 3D camera. The three-dimensional depth information of the preset joints of the dancer is acquired through the 3D camera, so that the influence of clothes, illumination or background can be effectively eliminated, and the identification difficulty of the action images is reduced.
Description
Technical Field
The utility model discloses general electronic teaching technical field, concretely relates to dance posture feedback device.
Background
Dance is an art for expressing emotion through physical performance in a three-dimensional space, and takes the movement and posture of a human body as an expression form. In the process of training the dancer, it is very important for the precision of dancing movements. The traditional training basically depends on naked eyes and experience, the specific technical parameters cannot be judged, an objective and scientific guiding method and training basis are lacked, and talent selection and cultivation are not facilitated. Under the influence of epidemic situations, many education institutions implement remote network education, but dance teaching works only through a plane video, but because of the influence of clothes, illumination or background, the difficulty in recognizing action images is high.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned drawbacks or deficiencies in the prior art, it would be desirable to provide a dance posture feedback device.
The utility model provides a dance posture feedback device, include: the 3D camera is used for collecting motion images of a dancer, and the motion images comprise three-dimensional depth information of preset joints of the dancer; the mounting body, the last top-down of mounting body is equipped with three installation region, and the installation region at top is used for setting up the 3D camera.
In one embodiment, the 3D camera is rotatably coupled to the mounting body.
In one embodiment, the 3D camera adopts a Kinect somatosensory device, and the 3D camera comprises at least one RGB camera.
In one embodiment, the 3D camera measures three-dimensional depth information of the predetermined joint by speckle structured light, time-of-flight ranging, lidar, or binocular vision techniques
In one embodiment, the apparatus further comprises a processor including a fusion module for fusing the action image with the preset dance standard gesture.
In one embodiment, the apparatus further includes a display device, communicatively connected to the fusion module, and configured to display the fused motion image and the preset dance standard gesture.
In one embodiment, the processor further comprises a processing module, which is used for determining the deviation amount of the preset joint of the dancer based on the three-dimensional depth information and the standard three-dimensional depth information of the preset joint in the preset dance standard posture by taking the preset point of the motion image as a reference point.
In one embodiment, the device further comprises a sound playing device for sending out a qualified voice prompt signal when the coincidence rate meets a standard value, and sending out a voice prompt signal for recommending improvement when the coincidence rate does not meet the standard value.
In one embodiment, the processor further comprises a judging module for comparing whether the dance motion coincidence rate meets a standard value or not.
In one embodiment, the mounting area in the middle of the mounting body is provided with a display device, and the mounting area at the bottom is provided with a sound playing device.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides a dance posture feedback device, include: the 3D camera is used for collecting motion images of a dancer, and the motion images comprise three-dimensional depth information of preset joints of the dancer; the installation main part, the last top-down of installation main part is equipped with three installation area, and the installation area at top is used for setting up the 3D camera. The three-dimensional depth information of the preset joints of the dancer is acquired through the 3D camera, so that the influence of clothes, illumination or background can be effectively eliminated, and the identification difficulty of the action images is reduced.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
FIG. 1 is a schematic structural diagram of a dance posture feedback device according to an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a dance posture feedback device according to an embodiment of the present application;
fig. 3 is a block diagram illustrating a processor according to an embodiment of the present invention.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
Fig. 1 to 3 show a dance posture feedback device provided by the present application.
The utility model provides a dance posture feedback device, include: the 3D camera 1 is used for collecting motion images of a dancer, and the motion images comprise three-dimensional depth information of preset joints of the dancer; the installation body 4, the last top-down of installation body 4 is equipped with three installation region, and the installation region at top is used for setting up 3D camera 1.
The three-dimensional depth information of the preset joints of the dancer is acquired through the 3D camera, so that the influence of clothes, illumination or background can be effectively eliminated, and the identification difficulty of the action images is reduced.
It should be noted that the 3D camera 1 measures the three-dimensional depth information of the predetermined joint through speckle structured light, time-of-flight ranging, laser radar, or binocular vision technology.
When three-dimensional depth information of a preset joint is acquired from an action image based on a speckle structured light technology, a 3D camera is formed by combining an infrared projector and an infrared camera, projection and receiving are mutually overlapped, each point in a visual field range can be collected, and a depth-of-field image representing the surrounding environment is formed. The depth image stream is generated at a rate of 30 frames per second, and the surrounding environment is reproduced in real time in 3D.
The three-dimensional depth information of the preset joint is obtained from the action image based on a time-of-flight ranging technology, the time-of-flight ranging technology is that a sensor emits modulated near infrared light and reflects the near infrared light after encountering an object, the distance of a shot scene is converted by the sensor through calculating the time difference or phase difference between light emission and reflection so as to generate depth information, and in addition, the three-dimensional outline of the object can be presented in a topographic map mode that different colors represent different distances by combining with the shooting of a traditional camera.
The three-dimensional depth information of the preset joint is obtained from the action image based on a laser radar technology, and the laser radar technology is a system integrating three technologies of laser, a Global Positioning System (GPS) and an Inertial Navigation System (INS) and is used for obtaining point cloud data and generating an accurate digital three-dimensional model. The combination of the three technologies can acquire surrounding three-dimensional real scenes under the condition of consistent absolute measurement point positions.
When the three-dimensional depth information of the preset joint is acquired from the motion images based on the computer binocular stereo vision technology, the three-dimensional depth information of the preset joint of the dancer is acquired by calibrating two or more motion images through a 3D camera, extracting and matching features, reconstructing three-dimensionally and the like.
In this embodiment, the 3D camera 1 is rotatably connected to the mounting body 4.
Because the dancer's position and angle are constantly changing, the camera can be set to rotate 360 degrees around its attachment point.
In this embodiment, the 3D camera 302 may adopt a Kinect somatosensory device.
The 3D camera comprises at least one RGB camera. The RGB cameras can be added properly according to the algorithm and function requirements, and the number of the RGB cameras is not limited. An RGB camera gives three basic color components from three different cables. This type of camera typically uses three separate CCD sensors to acquire the three color signals. RGB cameras are often used for very accurate color image acquisition.
The device further comprises a processor 5, wherein the processor comprises a fusion module 501, and the fusion module 501 is used for fusing the action image and the preset dance standard gesture.
The specific fusion module 501 scales the motion image according to the converted three-dimensional coordinates; fusing the zoomed action image with the preset dance standard posture; and displaying the fused action image and the preset dance standard gesture.
The device further comprises a display device 3, wherein the display device 3 is in communication connection with the fusion module 501 and is used for displaying the fused motion image and the preset dance standard posture.
The processor 5 further comprises a processing module 502, configured to determine, with the predetermined point of the motion image as a reference point, a deviation amount of a predetermined joint of the dancer based on the three-dimensional depth information and standard three-dimensional depth information of the predetermined joint in a preset dancing standard posture.
Specifically, the processing module 502 determines the ratio of the three-dimensional coordinates of the motion image to the three-dimensional coordinates of the preset dance standard posture by using the nose tip and the eye center of the dancer as reference points; converting the three-dimensional coordinates of the preset joints of the dancers in the motion images based on the proportion to obtain converted three-dimensional coordinates; and comparing the converted three-dimensional coordinates of the preset joints of the dancer in the action image with the three-dimensional coordinates of the preset joints in the preset dancing standard posture, and determining the position deviation amount and the angle deviation amount of the preset joints of the dancer.
In this embodiment, the processor 5 further includes: and the judging module 503 is configured to compare whether the dance motion coincidence rate meets a standard value or not.
The specific judgment module 503 compares the position deviation amount with a first preset threshold, and compares the angle deviation amount with a second preset threshold; and when the position deviation amount is smaller than a first preset threshold value and the angle deviation amount is smaller than a second preset threshold value, the coincidence rate of the limb movement of the dancer and the dance standard posture is in accordance with a standard value, and the dance movement is qualified.
In this embodiment, the processor 5 further includes: and the sound playing equipment is used for sending out a qualified voice prompt signal when the coincidence rate accords with a standard value, and sending out a voice prompt signal for improving the suggestion when the coincidence rate does not accord with the standard value.
In the present embodiment, the sound playing device 2 comprises one or more speakers.
Preferably, the sound playing equipment can also be used for playing dance accompaniment, and can also be used for voice communication between a dancer and the processor, so that man-machine interaction is realized.
The display device 3 is arranged in the installation area in the middle of the installation body 4, and the sound playing device 2 is arranged in the installation area at the bottom.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by those skilled in the art that the scope of the disclosure herein is not limited to the particular combination of features described above, but also encompasses other arrangements formed by any combination of the above features or their equivalents without departing from the spirit of the disclosure. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (7)
1. A dance posture feedback device, comprising:
the 3D camera is used for collecting motion images of a dancer, and the motion images comprise three-dimensional depth information of preset joints of the dancer;
the mounting body, the last top-down of mounting body is equipped with three installation region, and the installation region at top is used for setting up the 3D camera.
2. A dance posture feedback device according to claim 1, wherein the 3D camera is rotatably connected to the mounting body.
3. The dance posture feedback device according to claim 2, wherein the 3D camera is a Kinect somatosensory device, and the 3D camera comprises at least one RGB camera.
4. A dance posture feedback device according to claim 3, wherein the 3D camera measures three-dimensional depth information of the predetermined joint through speckle structured light, time-of-flight ranging, lidar, or binocular vision techniques.
5. A dance gesture feedback device according to claim 1, further comprising a processor including a fusion module for fusing the motion image with a preset dance standard gesture.
6. A dance posture feedback device according to claim 5, further comprising a display device, wherein the display device is in communication connection with the fusion module, and is used for displaying the fused motion image and the preset dance standard posture.
7. A dance posture feedback device according to claim 6, wherein a display device is provided in a mounting region of a middle portion of the mounting body, and a sound playing device is provided in a mounting region of a bottom portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022577356.5U CN214122904U (en) | 2020-11-09 | 2020-11-09 | Dance posture feedback device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022577356.5U CN214122904U (en) | 2020-11-09 | 2020-11-09 | Dance posture feedback device |
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| Publication Number | Publication Date |
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| CN214122904U true CN214122904U (en) | 2021-09-03 |
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| CN202022577356.5U Active CN214122904U (en) | 2020-11-09 | 2020-11-09 | Dance posture feedback device |
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| CN (1) | CN214122904U (en) |
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