Image acquisition method based on head posture control

Abstract

The invention discloses an image acquisition method based on head posture control, relates to the technical field of image acquisition, and solves the problems that when an image acquisition device based on head posture control is used, misoperation is often caused by head actions during image viewing, the front view field is easy to block during image viewing, and the image acquisition efficiency is high. And the images on the two sides and the rear side are difficult to view when the images are viewed. According to the image acquisition method based on head posture control, a head bandage is included, and four fixing blocks are fixedly installed on the surface of the head bandage. Through cooperation of a driving gear and a driven gear ring, when the device is used, the driving gear can be driven to rotate through a micro motor, so that the driven gear ring is driven to rotate, the position of the transparent display screen is adjusted, and the situation that when a worker views images on the surfaces of the transparent display screens on the two sides or the rear side, the images are not damaged is avoided. The head needs to be rotated, so that posture control is triggered, and content needing to be watched is affected.

Description

Technical Field

[0001] The present invention relates to the field of image acquisition, and specifically to an image acquisition method based on head pose control. Background Art

[0002] Image acquisition technology is the basis of computer vision and machine perception. Its core is to convert the optical signals in the physical world into processable digital information through the collaborative work of optics, electronics, and algorithms. Image acquisition based on head pose control refers to image acquisition controlled by the human head, which is commonly used in scenarios such as the VR field and intelligent driving. When the existing image acquisition devices based on head pose control are in use, they often cause misoperations due to head movements when viewing images, are prone to blocking the front view when viewing images, and it is difficult to view the images on both sides and the rear when viewing images. Therefore, they do not meet the existing requirements, and for this reason, we propose an image acquisition method based on head pose control. Summary of the Invention

[0003] The purpose of the present invention is to provide an image acquisition method based on head pose control to solve the problems mentioned in the above background art, that is, when the image acquisition device based on head pose control is in use, it often causes misoperations due to head movements when viewing images, is prone to blocking the front view when viewing images, and it is difficult to view the images on both sides and the rear when viewing images.

[0004] To achieve the above purpose, the present invention provides the following technical solution: An image acquisition method based on head pose control, including a head strap. Four fixing blocks are fixedly installed on the surface of the head strap. Acquisition platforms are provided on the outer sides of the fixing blocks. Panoramic acquisition probes are provided on the outer sides of the acquisition platforms. A display screen mounting ring frame is provided at the bottom end of the acquisition platform. A transparent display screen is provided at the bottom end of the display screen mounting ring frame.

[0005] Preferably, a rotating ring groove is provided at the top end of the display screen mounting ring frame. A driving gear is fixedly installed at the bottom end of the acquisition platform located at the front side. T-shaped rods are fixedly installed at the bottom ends of the other three acquisition platforms. The T-shaped rods and the driving gear are both movably clamped into the inside of the rotating ring groove. A driven gear ring is fixedly installed inside the rotating ring groove. The driving gears are all meshed with the driven gear ring.

[0006] Preferably, a semi-circular fixing plate is fixedly installed at a position on the outer surface of the display screen mounting ring frame near the front side. A rotating semi-circular groove is provided on the outer surface of the semi-circular fixing plate. Two dark arc-shaped baffles are movably installed at the bottom end of the semi-circular fixing plate. The dark arc-shaped baffles are attached to the surface of the transparent display screen. Connecting arc plates are fixedly installed at the top ends of the two dark arc-shaped baffles. The connecting arc plates are attached to the outer surface of the semi-circular fixing plate. Sliding arc blocks are fixedly installed at positions of the connecting arc plates close to the rotating semi-circular groove. The sliding arc blocks are all slidably inserted into the inside of the rotating semi-circular groove.

[0007] Preferably, fill lights are provided at positions on the outer side of the collection platform near the upper part. A fixed flexible strap is provided at the bottom end of the head strap.

[0008] Preferably, a micro motor is provided inside the collection platform located at the front side. The output end of the micro motor is connected to the driving gear through a coupling.

[0009] Preferably, an image acquisition system is carried inside the collection platform. The image acquisition system includes an IMU sensor, a distortion attitude compensation and correction module, an attitude collaborative detection module, and an image processing module.

[0010] Preferably, the IMU sensor is used to measure the three-axis attitude angle and rotational acceleration of the head. The distortion attitude compensation and correction module is used to dynamically correct the head attitude rotation angle error. The attitude collaborative detection module is used to detect the angle of the head attitude and collaboratively adjust the image displayed on the transparent display screen. The image processing module is used to optimize and adjust the image data captured by the panoramic acquisition probe.

[0011] A collection method of an image acquisition device based on head attitude control includes the following steps: Step (1): First, a staff member wears the device, puts the head strap on the head position, and puts the fixed flexible strap on the chin position of the head to fix the device, avoiding the situation that the device does not follow the rotation when the head rotates. Through manual adjustment, ensure that the panoramic acquisition probe located at the front side faces the front of the staff member. Step (2): Four panoramic acquisition probes are used to capture panoramic images of the surroundings, and the captured panoramic images are displayed on the surface of the transparent display screen. When the staff needs to view the images on the transparent display screen clearly, the dark arc-shaped baffle can be pushed forward, so that the dark arc-shaped baffle rotates along the rotating semi-circular groove to the front position of the staff, so as to block the transparent display screen. At this time, the images on the surface of the transparent display screen are blocked by the dark arc-shaped baffle from the external light irradiation, so they are clearer. When the staff no longer views the images on the transparent display screen, the dark arc-shaped baffle can be pushed backward, so that the dark arc-shaped baffle rotates along the rotating semi-circular groove to the rear position of the staff, so that it no longer blocks the external light. At this time, the staff can directly observe the situation in front through the transparent display screen; Step (3): When the staff turns their head, the acquisition platform and the transparent display screen will follow the rotation of the staff's head. When the staff needs to view the images on the transparent display screens on both sides or at the rear side, the micro motor can be started to drive the driving gear to rotate, so as to drive the driven gear ring to rotate through the driving gear, and then make the transparent display screen rotate at the bottom of the acquisition platform, so that the transparent display screens on both sides or at the rear side rotate in front of the staff's eyes, avoiding the need for the staff to turn their heads when viewing the images on the transparent display screens on both sides or at the rear side, which may trigger attitude control and affect the content to be viewed.

[0012] Preferably, when the staff turns their head in the above steps, the following steps are further included: Step (1.1): First, set a basic head attitude rotation threshold in the attitude coordination detection module, and the IMU sensor measures the three-axis attitude angle and rotation acceleration of the head. When the head rotation angle exceeds the set threshold, the attitude coordination detection module is triggered to adjust the displayed images on the transparent display screen in coordination with the head rotation angle.

[0013] Preferably, when the captured panoramic images are displayed on the surface of the transparent display screen in the above steps, the following steps are further included: Step (2.1): The distortion attitude compensation correction module detects the subtle movement of the staff's head and dynamically corrects the head attitude rotation angle error; Step (2.2): The image processing module dynamically repairs the captured images and optimizes the captured images, so that clear images are displayed on the surface of the transparent display screen.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. Through the cooperation of the driving gear and the driven gear ring, when the device is in use, the driving gear can be driven to rotate by a micro motor, thereby driving the rotation of the driven gear ring, and further adjusting the position of the transparent display screen, so as to prevent the staff from triggering attitude control and affecting the content to be viewed when turning the head to view the images on the surfaces of the transparent display screens on both sides or at the rear side.

[0015] 2. Through the cooperation of the transparent display screen and the dark arc-shaped baffle, when the staff needs to clearly view the images on the transparent display screen, the dark arc-shaped baffle can be pushed forward, so that the dark arc-shaped baffle rotates along the rotating semi-circular groove to the front position of the staff, and it blocks the transparent display screen. At this time, the images on the surface of the transparent display screen are blocked from the external light by the dark arc-shaped baffle, so they are clearer. When the staff no longer views the images on the transparent display screen, the dark arc-shaped baffle can be pushed backward, so that the dark arc-shaped baffle rotates along the rotating semi-circular groove to the rear position of the staff, and it no longer blocks the external light. At this time, the staff can directly observe the situation in front through the transparent display screen, enabling the staff to perform image acquisition while moving, and avoiding the limitation of the staff's movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the whole of the present invention; Figure 2 is a front cross-sectional view of the whole of the present invention; Figure 3 is a side cross-sectional view of the whole of the present invention; Figure 4 is a top cross-sectional view of the whole of the present invention; Figure 5 For the present invention Figure 4 is a partial structural schematic diagram of part A in the present invention; Figure 6 is a schematic flow diagram of the acquisition system of the present invention.

[0017] In the figure: 1. Head strap; 2. Fixed block; 3. Acquisition table; 4. Fill light; 5. Panoramic acquisition probe; 6. Fixed flexible strap; 7. Display screen mounting ring frame; 8. Transparent display screen; 9. Dark arc-shaped baffle; 10. Semi-circular fixing plate; 11. Connecting arc plate; 12. Rotating ring groove; 13. Rotating semi-circular groove; 14. T-shaped rod; 15. Driving gear; 16. Sliding arc block; 17. Driven gear ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0019] Please refer toFigures 1 to 6 , an embodiment provided by the present invention: An image acquisition method based on head pose control, including a head strap 1, four fixing blocks 2 are fixedly installed on the surface of the head strap 1, a collection platform 3 is provided on the outside of each fixing block 2, a panoramic acquisition probe 5 is provided on the outside of each collection platform 3, a display screen mounting ring frame 7 is provided at the bottom end of the collection platform 3, and a transparent display screen 8 is provided at the bottom end of the display screen mounting ring frame 7.

[0020] A rotating ring groove 12 is provided at the top end of the display screen mounting ring frame 7. A driving gear 15 is fixedly installed at the bottom end of the collection platform 3 located at the front side, and a T-shaped rod 14 is fixedly installed at the bottom end of each of the remaining three collection platforms 3. Both the T-shaped rod 14 and the driving gear 15 are movably clamped into the inside of the rotating ring groove 12. A driven gear ring 17 is fixedly installed inside the rotating ring groove 12, and the driving gears 15 are all meshed and connected with the driven gear ring 17.

[0021] Through the cooperation of the driving gear 15 and the driven gear ring 17, when the device is in use, the driving gear 15 can be driven to rotate by a micro motor, thereby driving the driven gear ring 17 to rotate, and then adjusting the position of the transparent display screen 8, so as to prevent the staff from viewing the images on the surfaces of the transparent display screens 8 on both sides or the rear side, and having to turn the head to trigger the pose control and affect the content to be viewed.

[0022] A semi-circular fixing plate 10 is fixedly installed at a position on the outer surface of the display screen mounting ring frame 7 close to the front side. A rotating semi-circular groove 13 is provided on the outer surface of the semi-circular fixing plate 10. Two dark arc-shaped baffles 9 are movably installed at the bottom end of the semi-circular fixing plate 10. The dark arc-shaped baffles 9 are attached to the surface of the transparent display screen 8. Connecting arc plates 11 are fixedly installed at the top ends of the two dark arc-shaped baffles 9. The connecting arc plates 11 are attached to the outer surface of the semi-circular fixing plate 10. Sliding arc blocks 16 are fixedly installed at positions of the connecting arc plates 11 close to the rotating semi-circular groove 13. The sliding arc blocks 16 are all slidably inserted into the inside of the rotating semi-circular groove 13.

[0023] Through the cooperation of the transparent display screen 8 and the dark arc-shaped baffles 9, when the staff needs to clearly view the images on the transparent display screen 8, the dark arc-shaped baffles 9 can be pushed forward, so that the dark arc-shaped baffles 9 rotate along the rotating semi-circular groove 13 to the front position of the staff, and block the transparent display screen 8. At this time, the images on the surface of the transparent display screen 8 are blocked by the dark arc-shaped baffles 9 from the external light irradiation, so they are clearer. When the staff no longer views the images on the transparent display screen 8, the dark arc-shaped baffles 9 can be pushed backward, so that the dark arc-shaped baffles 9 rotate along the rotating semi-circular groove 13 to the rear position of the staff, and no longer block the external light. At this time, the staff can directly observe the situation in front through the transparent display screen 8, enabling the staff to perform image acquisition while moving and avoiding the limitation of the staff's movement.

[0024] Fill light 4 is provided at the upper position on the outer side of the collection table 3, and a fixed flexible strap 6 is provided at the bottom end of the head strap 1.

[0025] A micro motor is provided inside the collection table 3 on the front side, and the output end of the micro motor is connected to the driving gear 15 through a coupling.

[0026] An image acquisition system is carried inside the collection table 3. The image acquisition system includes an IMU sensor, a distortion attitude compensation and correction module, an attitude collaborative detection module, and an image processing module.

[0027] The IMU sensor is used to measure the three-axis attitude angle and rotational acceleration of the head. The distortion attitude compensation and correction module is used to dynamically correct the head attitude rotation angle error. The attitude collaborative detection module is used to detect the angle of the head attitude and collaboratively adjust the image displayed on the transparent display screen 8. The image processing module is used to optimize and adjust the image data captured by the panoramic acquisition probe 5.

[0028] An acquisition method of an image acquisition device based on head attitude control includes the following steps: Step (1): First, a staff member wears the device, puts the head strap 1 on the head, and puts the fixed flexible strap 6 on the chin position of the head to fix the device, avoiding the situation that the device does not rotate when the head rotates. Through manual adjustment, ensure that the panoramic acquisition probe 5 on the front side faces the front of the staff member. Step (2): Use the four panoramic acquisition probes 5 to capture panoramic images of the surroundings and display the captured panoramic images on the surface of the transparent display screen 8. When the staff member needs to clearly view the image on the transparent display screen 8, the dark arc-shaped baffle 9 can be pushed forward, so that the dark arc-shaped baffle 9 rotates along the rotating semi-circular groove 13 to the front position of the staff member, and it blocks the transparent display screen 8. At this time, the image on the surface of the transparent display screen 8 is blocked by the dark arc-shaped baffle 9 from external light irradiation, so it is clearer. When the staff member no longer views the image on the transparent display screen 8, the dark arc-shaped baffle 9 can be pushed backward, so that the dark arc-shaped baffle 9 rotates along the rotating semi-circular groove 13 to the rear position of the staff member, and it no longer blocks the external light. At this time, the staff member can directly observe the situation in front through the transparent display screen 8. Step (3): When the staff member turns their head, the acquisition platform 3 and the transparent display screen 8 will follow the rotation of the staff member's head. When the staff member needs to view the images on the transparent display screens 8 on both sides or at the rear, they can start the micro-motor to drive the driving gear 15 to rotate, thereby driving the driven gear ring 17 to rotate through the driving gear 15, and then rotating the transparent display screen 8 at the bottom of the acquisition platform 3, so that the transparent display screens 8 on both sides or at the rear rotate in front of the staff member's eyes, avoiding the need for the staff member to turn their head when viewing the images on the surfaces of the transparent display screens 8 on both sides or at the rear, which may trigger attitude control and affect the content to be viewed.

[0029] When the staff member turns their head in step (1), the following steps are also included: Step (1.1): First, set the basic head attitude rotation threshold in the attitude coordination detection module, and measure the three-axis attitude angle and rotational acceleration of the head by the IMU sensor. When the head rotation angle exceeds the set threshold, the attitude coordination detection module is triggered to adjust the displayed image on the transparent display screen 8 in coordination with the rotation angle of the head.

[0030] When displaying the captured panoramic image on the surface of the transparent display screen 8 in step (2), the following steps are also included: Step (2.1): Detect the subtle movement of the staff member's head through the distortion attitude compensation correction module and dynamically correct the head attitude rotation angle error; Step (2.2): Dynamically repair the captured image through the image processing module and optimize the captured image to display a clear image on the surface of the transparent display screen 8.

[0031] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed within the present invention. Any reference signs in the claims should not be regarded as limiting the claimed claims.

Claims

1. An image acquisition device based on head pose control, comprising a head strap (1), characterized in that: Four fixing blocks (2) are fixedly installed on the surface of the head strap (1). Collection platforms (3) are arranged on the outer sides of the fixing blocks (2). Panoramic collection probes (5) are arranged on the outer sides of the collection platforms (3). A display screen mounting ring frame (7) is arranged at the bottom end of the collection platform (3). A transparent display screen (8) is arranged at the bottom end of the display screen mounting ring frame (7).

2. The image acquisition device based on head pose control according to claim 1, characterized in that: A rotating ring groove (12) is arranged at the top end of the display screen mounting ring frame (7). A driving gear (15) is fixedly installed at the bottom end of the collection platform (3) located at the front side. T-shaped rods (14) are fixedly installed at the bottom ends of the other three collection platforms (3). The T-shaped rods (14) and the driving gear (15) are both movably clamped into the inside of the rotating ring groove (12). A driven gear ring (17) is fixedly installed inside the rotating ring groove (12). The driving gears (15) are all meshed and connected with the driven gear ring (17).

3. The image acquisition device based on head pose control according to claim 2, wherein: A semi-circular fixing plate (10) is fixedly installed at a position on the outer surface of the display screen mounting ring frame (7) close to the front side. A rotating semi-circular groove (13) is arranged on the outer surface of the semi-circular fixing plate (10). Two dark arc-shaped baffles (9) are movably installed at the bottom end of the semi-circular fixing plate (10). The dark arc-shaped baffles (9) are attached to the surface of the transparent display screen (8). Connecting arc plates (11) are fixedly installed at the top ends of the two dark arc-shaped baffles (9). The connecting arc plates (11) are attached to the outer surface of the semi-circular fixing plate (10). Sliding arc blocks (16) are fixedly installed at positions of the connecting arc plates (11) close to the rotating semi-circular groove (13). The sliding arc blocks (16) are all slidably inserted into the inside of the rotating semi-circular groove (13).

4. The image acquisition device based on head pose control according to claim 3, wherein: Fill light lamps (4) are arranged at positions above the outer sides of the collection platforms (3). A fixed flexible strap (6) is arranged at the bottom end of the head strap (1).

5. The image acquisition device based on head pose control according to claim 4, wherein: A micro motor is arranged inside the collection platform (3) located at the front side. The output end of the micro motor is connected with the driving gear (15) through a coupling.

6. The image acquisition device based on head pose control according to claim 5, characterized in that: An image collection system is carried inside the collection platform (3). The image collection system includes an IMU sensor, a distortion attitude compensation and correction module, an attitude cooperative detection module, and an image processing module.

7. The image acquisition device based on head pose control according to claim 6, wherein: The IMU sensor is used to measure the three-axis attitude angle and rotational acceleration of the head. The distortion attitude compensation and correction module is used to dynamically correct the head attitude rotation angle error. The attitude cooperative detection module is used to detect the angle of the head attitude and cooperatively adjust the image displayed on the transparent display screen (8). The image processing module is used to optimize and adjust the image data captured by the panoramic collection probe (5).

8. A acquisition method of the image acquisition device based on head pose control according to any one of claims 1-7, characterized in that: Including the following steps: Step (1): First, a staff member wears the device, puts the head strap (1) on the head position, and puts the fixed flexible strap (6) on the chin position of the head to fix the device, avoiding the situation that the device does not follow the rotation when the head rotates. Through manual adjustment, ensure that the panoramic collection probe (5) located at the front side faces the front of the staff member; Step (2): Four panoramic acquisition probes (5) are used to capture panoramic images of the surroundings, and the captured panoramic images are displayed on the surface of the transparent display screen (8). When the staff needs to clearly view the image on the transparent display screen (8), the dark arc-shaped baffle (9) can be pushed forward, so that the dark arc-shaped baffle (9) rotates along the rotating semi-circular groove (13) to the front position of the staff, and it blocks the transparent display screen (8). At this time, the image on the surface of the transparent display screen (8) is blocked by the dark arc-shaped baffle (9) from the external light irradiation, thus being clearer. When the staff no longer views the image on the transparent display screen (8), the dark arc-shaped baffle (9) can be pushed backward, so that the dark arc-shaped baffle (9) rotates along the rotating semi-circular groove (13) to the rear position of the staff, and it no longer blocks the external light. At this time, the staff can directly observe the situation in front through the transparent display screen (8). Step (3): When the staff rotates their head, at this time, the acquisition table (3) and the transparent display screen (8) will follow the rotation of the staff's head. When the staff needs to view the images on the transparent display screen (8) on both sides or at the rear side, the micro-motor can be started to drive the driving gear (15) to rotate, thereby driving the driven gear ring (17) to rotate through the driving gear (15), and then making the transparent display screen (8) rotate at the bottom of the acquisition table (3), so that the transparent display screen (8) on both sides or at the rear side rotates in front of the staff's eyes, avoiding the situation that when the staff views the images on the surface of the transparent display screen (8) on both sides or at the rear side, they need to rotate their heads, which may trigger attitude control and affect the content to be viewed.

9. The acquisition method of an image acquisition device based on head pose control according to claim 8, characterized in that: The steps when the staff rotates their head in the said step (1) further include the following steps: Step (1.1): First, set the basic head attitude rotation threshold in the attitude cooperation detection module, and the IMU sensor measures the three-axis attitude angle and rotation acceleration of the head. When the head rotation angle exceeds the set threshold, the attitude cooperation detection module is triggered to adjust the image displayed on the transparent display screen (8) in cooperation with the rotation angle of the head.

10. The acquisition method of an image acquisition device based on head pose control according to claim 8, characterized in that: When the captured panoramic image is displayed on the surface of the transparent display screen (8) in the said step (2), it further includes the following steps: Step (2.1): The distortion attitude compensation and correction module detects the subtle movement of the staff's head and dynamically corrects the head attitude rotation angle error. Step (2.2): The image processing module dynamically repairs the captured image and optimizes the captured image, so that a clear image is displayed on the surface of the transparent display screen (8).

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