Non-heritage creative product image acquisition and display method and product image acquisition device

Abstract

The invention discloses a non-heritage creative product image acquisition and display method and a product image acquisition device, relates to the technical field of non-heritage product image display, and solves the problems that the non-heritage creative product is generally displayed by a video or a real object, so that a user cannot directly touch, rotate and other operation details, the display effect is poor, and the user experience is poor. And when the product is subjected to image shooting, the problem that the bottom of the product is difficult to shoot to cause mosaic or blurring of the image is often caused. The invention discloses a non-heritage creative product image acquisition and display method and a product image acquisition device, and the device comprises a transverse rotating mechanism, and the top end of the transverse rotating mechanism is provided with a vertical rotating mechanism. The product is hoisted above the display stand through the hoisting line, so that the bottom of the product can be shot through the bottom camera, and the situation that a user cannot observe the bottom of the product due to the fact that patterns such as printing and etching at the bottom of the product cannot be synchronously modeled during three-dimensional modeling is avoided.

Description

Technical Field

[0001] The present invention relates to the field of intangible cultural heritage product image display, and in particular to an intangible cultural heritage product image acquisition and display method and a product image acquisition device. Background Art

[0003] Augmented reality, or AR, is a technology that cleverly integrates virtual information with the real world. It widely uses a variety of technical means such as multimedia, three-dimensional modeling, real-time tracking and registration, intelligent interaction, and sensing. It simulates computer-generated virtual information such as text, images, three-dimensional models, music, and videos, and applies it to the real world. The two types of information complement each other, thereby achieving "enhancement" of the real world.

[0004] Existing intangible cultural heritage creative products are usually displayed in the form of videos or physical objects, which means that users are usually unable to directly perform operation details such as touch and rotation, resulting in poor display effects. In addition, when taking images of the products, it is often difficult to capture the bottom of the product, resulting in mosaics or blurry images. Therefore, this does not meet existing needs. In this regard, we propose an image acquisition and display method for intangible cultural heritage creative products and a product image acquisition device. Summary of the invention

[0005] The purpose of the present invention is to provide a method for collecting and displaying images of intangible cultural heritage cultural and creative products and a product image collection device, so as to solve the problems mentioned in the above background technology that intangible cultural heritage cultural and creative products are usually displayed in the form of videos or physical objects, resulting in users usually being unable to directly perform operation details such as touching and rotating, resulting in poor display effects, and when the product is imaged, it is often difficult to capture the bottom of the product, resulting in mosaics or blurs in the image, and the like.

[0006] To achieve the above object, the present invention provides the following technical solution: an image acquisition device for intangible cultural heritage products, comprising a horizontal rotation mechanism, a vertical rotation mechanism is provided at the top of the horizontal rotation mechanism, an image acquisition module is provided on the inner side of the vertical rotation mechanism, and product hoisting mechanisms are provided on both side surfaces of the vertical rotation mechanism;

[0007] The transverse rotation mechanism includes a base, a fixed platform, a display platform, a transverse driven gear, a transverse driving gear and a first servo motor. The fixed platform is fixedly installed on one side of the top of the base, the display platform is fixedly installed on the top of the fixed platform, the transverse driven gear is rotatably installed on the outer surface of the fixed platform, and the transverse driving gear is rotatably installed on the other side of the top of the base. The transverse driving gear is meshed and connected with the transverse driven gear. The top of the transverse driving gear is provided with a first servo motor, and the output end of the first servo motor is connected to the axis of the transverse driving gear through a coupling. The surface of the display platform is provided with multiple alignment cross points.

[0008] Preferably, the lateral rotation mechanism also includes a screw motor, a screw, a bottom camera, a movable sleeve and a lifting slot. The fixed platform is provided with a screw motor inside, and the output end of the screw motor is connected to the screw through a coupling. A lifting slot is provided at the center of the display platform, and the screw is movably inserted into the lifting slot. The outer surface of the screw is threadedly connected with a movable sleeve, and the bottom camera is fixedly installed on the top of the movable sleeve.

[0009] Preferably, the vertical rotation mechanism comprises an inner hollow bracket, a connecting plate, a vertical driving gear, a vertical driven half gear, a supporting bracket, a motor mounting frame and a second servo motor, the inner hollow bracket is fixedly installed on the top of the transverse driven gear, two connecting plates are fixedly installed on the top of the inner hollow bracket, a vertical driving gear is rotatably installed between the two connecting plates, the bottom end of the vertical driving gear is meshingly connected with a vertical driven half gear, the vertical driven half gear is rotatably inserted into the interior of the inner hollow bracket, a supporting bracket is fixedly installed on the rear side surface of the inner hollow bracket, a motor mounting frame is fixedly installed on the top of the supporting bracket, a second servo motor is provided on the top of the motor mounting frame, and the output end of the second servo motor is connected to the axis of the vertical driving gear through a coupling.

[0010] Preferably, the image acquisition module includes an arc-shaped acquisition platform, a fill light, a top camera and an electric push rod, three arc-shaped acquisition platforms are fixedly installed at the bottom end of the vertical driven half gear, the center of the bottom end of the arc-shaped acquisition platform is movably installed with a top camera, the inside of the arc-shaped acquisition platform is fixedly installed with an electric push rod, the output end of the electric push rod is fixedly connected to the top camera, and fill lights are provided on both sides of the surface of the arc-shaped acquisition platform close to the top camera.

[0011] Preferably, the product lifting mechanism includes a wire storage box, a storage groove, a rotating shaft, a winding drum and a lifting wire. The wire storage boxes are fixedly installed on both sides of the connecting plate. The wire storage boxes are provided with storage grooves inside. The storage grooves are rotatably installed with rotating shafts inside. The outer surface of the rotating shafts is fixedly installed with winding drums. The outer surface of the winding drums is wound with lifting wires. The lifting wires pass through the storage grooves and extend to the upper position of the display stand.

[0012] Preferably, the inner wall surface of the inner hollow bracket is provided with a plurality of pulleys, the two side surfaces of the vertical driven half gear are provided with arc grooves, the pulleys located on the inner wall surface of the inner hollow bracket are movably inserted into the inside of the arc grooves, and the top surface of the base is provided with a plurality of pulleys, and the pulleys located on the top surface of the base are fitted with the bottom end surfaces of the transverse driven gear and the transverse driving gear.

[0013] Preferably, the bottom camera and the top camera are both equipped with data processing units, which are composed of embedded processors and are used to control the shooting interval of the bottom camera and the top camera according to a preset algorithm to ensure the continuity of the image array.

[0014] Preferably, the bottom camera and the top camera are both connected to an image processing terminal via wireless transmission, the image processing terminal includes an image processing module, an AR processing module and an intelligent interaction module, the image processing module includes a feature extraction unit and a three-dimensional reconstruction unit, the feature extraction unit is used to denoise and demosaic the images captured by the bottom camera and the top camera, and extract key features such as texture and color, the three-dimensional reconstruction unit is used to produce a three-dimensional point cloud model of the product using the images captured by the bottom camera and the top camera, and to construct a high-precision digital model through a grid optimization algorithm, and then import the model into the AR processing module.

[0015] Preferably, the AR processing module includes an AR device, the AR processing module is used to project the imported three-dimensional model into the physical space where the user is located, and supports gesture and language interaction to adjust the model angle and scaling ratio, and the AR device is equipped with a dynamic process display unit, and the dynamic process display unit is used to superimpose the dynamic display of the product manufacturing process on the surface of the three-dimensional model;

[0016] The intelligent interaction module includes a head tracking unit and a language explanation system. The head tracking unit is used to capture the user's line of sight and head movements through a camera, and automatically rotate the three-dimensional model to adapt to the user's observation perspective. The language explanation system is used to cooperate with the dynamic process display unit to play the explanation content corresponding to the production process steps.

[0017] A method for displaying an image acquisition device for intangible cultural heritage products, the method comprising the following steps:

[0018] Step A: first, place the product on the surface of the display stand and place it at the center of the cross point. At this time, the second servo motor drives the vertical driving gear to rotate, and then the vertical driving gear drives the vertical driven half gear to rotate, so that the vertical driven half gear drives the image acquisition module to move above the display stand, so that the top camera can continuously shoot the product while following the uniform speed movement of the vertical driven half gear to adjust the shooting angle;

[0019] Step B: When the image shooting at one of the vertical angles is completed, the first servo motor drives the lateral active gear to rotate, so that the lateral active gear drives the lateral driven gear to rotate, and then the lateral driven gear drives the vertical rotating mechanism to rotate synchronously, thereby adjusting the shooting angle of the top camera, so as to complete the 360°×270° image acquisition and shooting of the product by the top camera;

[0020] Step C: When the bottom of the product has patterns such as printing and etching, it is necessary to capture images of the bottom of the product. First, pull the lifting wire outward, and wrap the two lifting wires around the upper and lower ends of the product respectively. Then, drive the winding drum to rotate and straighten the lifting wire through the rotating shaft, so that the lifting wire pulls the product to keep it suspended. At this time, the screw motor can drive the screw to rotate, so that the screw drives the movable sleeve to rise and fall, and the bottom camera is driven to rise and fall through the movable sleeve, so as to adjust the position of the bottom camera, and then the bottom of the product is captured by the bottom camera. At the same time, the top camera can be used to capture images of the product at other angles to prevent the situation where the required viewing angle image cannot be captured due to blind spots;

[0021] Step D: After the image acquisition of the product is completed, the image processing module performs denoising and demosaicing on the acquired image, extracts key features such as texture and color, and generates a 3D point cloud model of the product using the images acquired by the bottom camera and the top camera through the 3D reconstruction unit. Subsequently, a high-precision digital model is constructed through a mesh optimization algorithm, and the model is imported into the AR processing module.

[0022] Step E: The imported three-dimensional model is then projected into the user's physical space through the AR processing module, and gestures and language interactions are supported to adjust the model angle and scaling. During the display process, a dynamic display of the product manufacturing process is superimposed on the surface of the three-dimensional model through the dynamic process display unit. At the same time, the user's line of sight and head movement are captured through the camera in the head tracking unit, and the three-dimensional model is automatically rotated to adapt to the user's observation angle. The language explanation system and the dynamic process display unit are used to play the explanation content corresponding to the production process steps.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The present invention cooperates with the horizontal rotation mechanism and the vertical rotation mechanism so that when the device is in use, the horizontal driving gear can drive the horizontal driven gear to rotate, thereby driving the inner hollow bracket to rotate synchronously with the horizontal driven gear, and the vertical driving gear can drive the vertical driven half gear to rotate, thereby driving the image acquisition module to rotate synchronously with the vertical driven half gear, so that the device can perform 360°×270° multi-directional angle shooting and acquisition of the product through the image acquisition module, avoiding the situation where the blind spot causes incomplete modeling.

[0025] 2. The present invention cooperates with the hanging line and the bottom camera, so that when the device is in use, when it is necessary to shoot the bottom of the product, the product can be hung above the display stand through the hanging line, so that the bottom of the product can be shot through the bottom camera, avoiding the situation that the printing, etching and other patterns on the bottom of the product cannot be modeled synchronously during the three-dimensional modeling, resulting in the user being unable to observe the bottom of the product;

[0026] 3. The present invention cooperates with the image processing module and the AR device, so that the device can restore the details of intangible cultural heritage products through multi-angle image acquisition and three-dimensional reconstruction, which is superior to traditional single-view shooting, and combines AR with user behavior perception technology to achieve a "what you see is what you get" interactive experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 A cross-sectional front view of the present invention as a whole;

[0029] Figure 3 A sectional side view of the present invention as a whole;

[0030] Figure 4 A cross-sectional top view of the present invention as a whole;

[0031] Figure 5 For the present invention Figure 2 Schematic diagram of the local structure of part A;

[0032] Figure 6 For the present invention Figure 3 Schematic diagram of the local structure of part B;

[0033] Figure 7 The figure is a schematic diagram showing the process of the present invention.

[0034] In the figure: 1. Horizontal rotation mechanism; 101. Base; 102. Fixed platform; 103. Display platform; 104. Horizontal driven gear; 105. Screw motor; 106. Screw; 107. Bottom camera; 108. Movable sleeve; 109. Lifting slot; 110. Horizontal driving gear; 111. First servo motor; 2. Vertical rotation mechanism; 201. Inner hollow bracket; 202. Connecting plate; 203. Vertical driving gear; 204. Vertical driven half gear; 205. Support bracket; 206. Motor mounting bracket; 207. Second servo motor; 3. Image acquisition module; 301. Arc acquisition platform; 302. Fill light; 303. Top camera; 304. Electric push rod; 4. Product hoisting mechanism; 401. Wire storage box; 402. Storage slot; 403. Rotating shaft; 404. Winding drum; 405. Hoisting line; 5. Pulley. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0036] See also Figures 1 to 7 , an embodiment provided by the present invention: an image acquisition device for intangible cultural heritage products, comprising a horizontal rotation mechanism 1, a vertical rotation mechanism 2 is provided at the top of the horizontal rotation mechanism 1, an image acquisition module 3 is provided on the inner side of the vertical rotation mechanism 2, and product hoisting mechanisms 4 are provided on both side surfaces of the vertical rotation mechanism 2;

[0037] The transverse rotation mechanism 1 includes a base 101, a fixed platform 102, a display platform 103, a transverse driven gear 104, a transverse driving gear 110 and a first servo motor 111. The fixed platform 102 is fixedly installed on one side of the top of the base 101, and the display platform 103 is fixedly installed on the top of the fixed platform 102. The transverse driven gear 104 is rotatably installed on the outer surface of the fixed platform 102, and the transverse driving gear 110 is rotatably installed on the other side of the top of the base 101. The transverse driving gear 110 is meshed and connected with the transverse driven gear 104. The top of the transverse driving gear 110 is provided with a first servo motor 111, and the output end of the first servo motor 111 is connected to the axis of the transverse driving gear 110 through a coupling. The surface of the display platform 103 is provided with multiple alignment cross points.

[0038] The lateral rotation mechanism 1 also includes a screw motor 105, a screw 106, a bottom camera 107, a movable sleeve 108 and a lifting slot 109. The screw motor 105 is provided inside the fixed platform 102, and the output end of the screw motor 105 is connected to the screw 106 through a coupling. A lifting slot 109 is provided at the center of the display platform 103, and the screw 106 is movably inserted into the lifting slot 109. The outer surface of the screw 106 is threadedly connected with a movable sleeve 108, and the top of the movable sleeve 108 is fixedly installed with the bottom camera 107.

[0039] The vertical rotation mechanism 2 includes an inner hollow bracket 201, a connecting plate 202, a vertical driving gear 203, a vertical driven half gear 204, a supporting bracket 205, a motor mounting frame 206 and a second servo motor 207. The inner hollow bracket 201 is fixedly installed on the top of the horizontal driven gear 104, and two connecting plates 202 are fixedly installed on the top of the inner hollow bracket 201. The vertical driving gear 203 is rotatably installed between the two connecting plates 202. The bottom end of the vertical driving gear 203 is meshingly connected with the vertical driven half gear 204, and the vertical driven half gear 204 is rotatably inserted into the interior of the inner hollow bracket 201. The supporting bracket 205 is fixedly installed on the rear side surface of the inner hollow bracket 201, and the motor mounting frame 206 is fixedly installed on the top of the supporting bracket 205. The top of the motor mounting frame 206 is provided with a second servo motor 207, and the output end of the second servo motor 207 is connected to the axis of the vertical driving gear 203 through a coupling.

[0040] Through the cooperation of the horizontal rotating mechanism 1 and the vertical rotating mechanism 2, when the device is in use, the horizontal driving gear 110 can drive the horizontal driven gear 104 to rotate, thereby driving the inner hollow bracket 201 to rotate synchronously with the horizontal driven gear 104, and the vertical driving gear 203 can drive the vertical driven half gear 204 to rotate, thereby driving the image acquisition module 3 to rotate synchronously with the vertical driven half gear 204, so that the device can perform 360°×270° multi-directional angle shooting and acquisition of the product through the image acquisition module 3, avoiding the situation where blind spots cause incomplete modeling.

[0041] The image acquisition module 3 includes an arc-shaped acquisition platform 301, a fill light 302, a top camera 303 and an electric push rod 304. Three arc-shaped acquisition platforms 301 are fixedly installed at the bottom end of the vertical driven half gear 204. The top camera 303 is movably installed at the center of the bottom end of the arc-shaped acquisition platform 301. The electric push rod 304 is fixedly installed inside the arc-shaped acquisition platform 301. The output end of the electric push rod 304 is fixedly connected to the top camera 303. Fill lights 302 are provided on both sides of the surface of the arc-shaped acquisition platform 301 close to the top camera 303.

[0042] The product lifting mechanism 4 includes a wire storage box 401, a storage groove 402, a rotating shaft 403, a winding drum 404 and a lifting line 405. The wire storage boxes 401 are fixedly installed on both sides of the connecting plate 202. The wire storage boxes 401 are provided with storage grooves 402 inside. The storage grooves 402 are rotatably installed with rotating shafts 403 inside. The outer surface of the rotating shafts 403 is fixedly installed with winding drums 404. The outer surface of the winding drums 404 is wound with lifting lines 405. The lifting lines 405 pass through the storage grooves 402 and extend to the upper position of the display stand 103.

[0043] Through the cooperation of the hanging line 405 and the bottom camera 107, when the device is in use, when it is necessary to shoot the bottom of the product, the product can be hung above the display stand 103 through the hanging line 405, so that the bottom of the product can be photographed through the bottom camera 107, avoiding the situation that the printed, etched and other patterns on the bottom of the product cannot be modeled synchronously during three-dimensional modeling, resulting in the user being unable to observe the bottom of the product.

[0044] The inner wall surface of the inner hollow bracket 201 is provided with multiple pulleys 5, and the two side surfaces of the vertical driven half gear 204 are provided with arc grooves. The pulleys 5 located on the inner wall surface of the inner hollow bracket 201 are all movably inserted into the inside of the arc grooves. The top surface of the base 101 is provided with multiple pulleys 5, and the pulleys 5 located on the top surface of the base 101 are all in contact with the bottom end surfaces of the transverse driven gear 104 and the transverse driving gear 110.

[0045] The bottom camera 107 and the top camera 303 are both equipped with data processing units, which are composed of embedded processors and are used to control the shooting interval of the bottom camera 107 and the top camera 303 according to a preset algorithm to ensure the continuity of the image array.

[0046] The bottom camera 107 and the top camera 303 are both connected to an image processing terminal via wireless transmission. The image processing terminal includes an image processing module, an AR processing module and an intelligent interaction module. The image processing module includes a feature extraction unit and a three-dimensional reconstruction unit. The feature extraction unit is used to denoise and de-mosaic the images captured by the bottom camera 107 and the top camera 303, and extract key features such as texture and color. The three-dimensional reconstruction unit is used to use the images captured by the bottom camera 107 and the top camera 303 to produce a three-dimensional point cloud model of the product, and to construct a high-precision digital model through a grid optimization algorithm, and then import the model into the AR processing module.

[0047] The AR processing module includes an AR device, which is used to project the imported three-dimensional model into the physical space where the user is located, and supports gesture and language interaction to adjust the model angle and scaling ratio. The AR device is equipped with a dynamic process display unit, which is used to superimpose a dynamic display of the product manufacturing process on the surface of the three-dimensional model;

[0048] The intelligent interaction module includes a head tracking unit and a language explanation system. The head tracking unit is used to capture the user's line of sight and head movements through the camera, and automatically rotate the three-dimensional model to adapt to the user's observation perspective. The language explanation system is used to cooperate with the dynamic process display unit to play the explanation content corresponding to the production process steps.

[0049] Through the cooperation of image processing modules and AR equipment, the device can restore the details of intangible cultural heritage products through multi-angle image acquisition and three-dimensional reconstruction, which is superior to traditional single-perspective shooting. It also combines AR with user behavior perception technology to achieve an interactive experience of "what you see is what you get".

[0050] A method for displaying an image acquisition device for intangible cultural heritage products, the method comprising the following steps:

[0051] Step A: firstly place the product on the surface of the display stand 103 and place it at the center of the cross point. At this time, the second servo motor 207 drives the vertical driving gear 203 to rotate, and then the vertical driving gear 203 drives the vertical driven half gear 204 to rotate, so that the vertical driven half gear 204 drives the image acquisition module 3 to move above the display stand 103, so that the top camera 303 can continuously shoot the product while following the vertical driven half gear 204 to move at a uniform speed to adjust the shooting angle;

[0052] Step B: When the image shooting at one of the vertical angles is completed, the first servo motor 111 drives the lateral driving gear 110 to rotate, so that the lateral driving gear 110 drives the lateral driven gear 104 to rotate, and then the lateral driven gear 104 drives the vertical rotating mechanism 2 to rotate synchronously, thereby adjusting the shooting angle of the top camera 303, so as to complete the 360°×270° image acquisition and shooting of the product by the top camera 303;

[0053] Step C: When the bottom of the product has patterns such as printing and etching, it is necessary to capture images of the bottom of the product. First, pull the hanging line 405 outward, and wrap the two hanging lines 405 around the upper and lower ends of the product respectively. Then, drive the winding drum 404 to rotate and straighten the hanging line 405 through the rotating shaft 403, so that the hanging line 405 pulls the product to keep it suspended. At this time, the screw motor 105 can drive the screw 106 to rotate, so that the screw 106 drives the movable sleeve 108 to rise and fall, thereby driving the bottom camera 107 to rise and fall through the movable sleeve 108, so as to adjust the position of the bottom camera 107, and then use the bottom camera 107 to capture images of the bottom of the product. At the same time, the top camera 303 can be used to capture images of the product at other angles to prevent the situation where the required viewing angle images cannot be captured due to blind spots.

[0054] Step D: After the image acquisition of the product is completed, the acquired image is subjected to denoising and demosaicing processing by the image processing module, and key features such as texture and color are extracted, and the three-dimensional point cloud model of the product is produced by the three-dimensional reconstruction unit using the images acquired by the bottom camera 107 and the top camera 303, and then a high-precision digital model is constructed by a grid optimization algorithm, so as to import the model into the AR processing module;

[0055] Step E: The imported three-dimensional model is then projected into the user's physical space through the AR processing module, and gestures and language interactions are supported to adjust the model angle and scaling. During the display process, a dynamic display of the product manufacturing process is superimposed on the surface of the three-dimensional model through the dynamic process display unit. At the same time, the user's line of sight and head movement are captured through the camera in the head tracking unit, and the three-dimensional model is automatically rotated to adapt to the user's observation angle. The language explanation system and the dynamic process display unit are used to play the explanation content corresponding to the production process steps.

[0056] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. An image acquisition device for intangible cultural heritage products, comprising a lateral rotation mechanism (1), characterized in that: A vertical rotating mechanism (2) is provided at the top of the horizontal rotating mechanism (1), an image acquisition module (3) is provided on the inner side of the vertical rotating mechanism (2), and product hoisting mechanisms (4) are provided on both side surfaces of the vertical rotating mechanism (2); The transverse rotation mechanism (1) comprises a base (101), a fixed platform (102), a display platform (103), a transverse driven gear (104), a transverse driving gear (110) and a first servo motor (111); the fixed platform (102) is fixedly mounted on one side of the top of the base (101); the display platform (103) is fixedly mounted on the top of the fixed platform (102); the transverse driven gear (104) is rotatably mounted on the outer surface of the fixed platform (102); the transverse driving gear (110) is rotatably mounted on the other side of the top of the base (101); the transverse driving gear (110) is meshedly connected with the transverse driven gear (104); the top of the transverse driving gear (110) is provided with a first servo motor (111); the output end of the first servo motor (111) is connected to the axis of the transverse driving gear (110) via a coupling; and a plurality of alignment cross points are provided on the surface of the display platform (103).

2. The image acquisition device for intangible cultural heritage products according to claim 1, characterized in that: The lateral rotation mechanism (1) further comprises a screw motor (105), a screw rod (106), a bottom camera (107), a movable sleeve (108) and a lifting slot (109); the fixed platform (102) is provided with a screw motor (105); the output end of the screw motor (105) is connected to the screw rod (106) via a coupling; a lifting slot (109) is provided at the center of the display platform (103); the screw rod (106) is movably inserted into the lifting slot (109); the outer surface of the screw rod (106) is threadedly connected with a movable sleeve (108); and the top end of the movable sleeve (108) is fixedly mounted with the bottom camera (107).

3. The image acquisition device for intangible cultural heritage products according to claim 2, characterized in that: The vertical rotation mechanism (2) comprises an inner hollow bracket (201), a connecting plate (202), a vertical driving gear (203), a vertical driven half gear (204), a supporting bracket (205), a motor mounting frame (206) and a second servo motor (207); the inner hollow bracket (201) is fixedly mounted on the top of the horizontal driven gear (104); two connecting plates (202) are fixedly mounted on the top of the inner hollow bracket (201); a vertical driving gear (203) is rotatably mounted between the two connecting plates (202); the vertical driving gear (203) is rotatably mounted between the two connecting plates (202); and the vertical driving gear (203) is rotatably mounted between the two connecting plates (202). The bottom end of the gear (203) is meshedly connected with a vertical driven half gear (204), and the vertical driven half gear (204) is rotated and inserted into the interior of the inner hollow bracket (201). A support bracket (205) is fixedly installed on the rear surface of the inner hollow bracket (201), and a motor mounting bracket (206) is fixedly installed on the top of the support bracket (205). A second servo motor (207) is provided on the top of the motor mounting bracket (206), and the output end of the second servo motor (207) is connected to the axis of the vertical driving gear (203) through a coupling.

4. The image acquisition device for intangible cultural heritage products according to claim 3, characterized in that: The image acquisition module (3) comprises an arc-shaped acquisition platform (301), a fill light (302), a top camera (303) and an electric push rod (304); three arc-shaped acquisition platforms (301) are fixedly mounted at the bottom end of the vertical driven half gear (204); the top camera (303) is movably mounted at the center of the bottom end of the arc-shaped acquisition platform (301); the inside of the arc-shaped acquisition platform (301) is fixedly mounted with an electric push rod (304); the output end of the electric push rod (304) is fixedly connected to the top camera (303); and the fill light (302) is provided on both sides of the surface of the arc-shaped acquisition platform (301) close to the top camera (303).

5. The image acquisition device for intangible cultural heritage products according to claim 4, characterized in that: The product hoisting mechanism (4) comprises a wire storage box (401), a storage groove (402), a rotating shaft (403), a winding drum (404) and a hoisting wire (405); the wire storage boxes (401) are fixedly installed on both sides of the connecting plate (202); the wire storage boxes (401) are provided with storage grooves (402) inside; the rotating shafts (403) are rotatably installed inside the storage grooves (402); the outer surfaces of the rotating shafts (403) are fixedly installed with winding drums (404); the outer surfaces of the winding drums (404) are wound with hoisting wires (405); and the hoisting wires (405) pass through the storage grooves (402) and extend to a position above the display stand (103).

6. The image acquisition device for intangible cultural heritage products according to claim 3, characterized in that: The inner wall surface of the inner hollow bracket (201) is provided with a plurality of pulleys (5), and both side surfaces of the vertical driven half gear (204) are provided with arc grooves. The pulleys (5) located on the inner wall surface of the inner hollow bracket (201) are movably inserted into the arc grooves. The top surface of the base (101) is provided with a plurality of pulleys (5), and the pulleys (5) located on the top surface of the base (101) are in contact with the bottom end surfaces of the transverse driven gear (104) and the transverse driving gear (110).

7. The image acquisition device for intangible cultural heritage products according to claim 4, characterized in that: The bottom camera (107) and the top camera (303) are both equipped with data processing units, which are composed of embedded processors and are used to control the shooting interval of the bottom camera (107) and the top camera (303) according to a preset algorithm to ensure the continuity of the image array.

8. The image acquisition device for intangible cultural heritage products according to claim 4, characterized in that: The bottom camera (107) and the top camera (303) are both connected to an image processing terminal via wireless transmission. The image processing terminal includes an image processing module, an AR processing module and an intelligent interaction module. The image processing module includes a feature extraction unit and a three-dimensional reconstruction unit. The feature extraction unit is used to perform denoising and de-mosaic processing on the images collected by the bottom camera (107) and the top camera (303), and extract key features such as texture and color. The three-dimensional reconstruction unit is used to produce a three-dimensional point cloud model of a product using the images collected by the bottom camera (107) and the top camera (303), and to construct a high-precision digital model using a grid optimization algorithm, and then import the model into the AR processing module.

9. The image acquisition device for intangible cultural heritage products according to claim 8, characterized in that: The AR processing module includes an AR device, which is used to project the imported three-dimensional model into the physical space where the user is located, and supports gesture and language interaction to adjust the model angle and scaling ratio. The AR device is equipped with a dynamic process display unit, which is used to superimpose a dynamic display of the product manufacturing process on the surface of the three-dimensional model; The intelligent interaction module includes a head tracking unit and a language explanation system. The head tracking unit is used to capture the user's line of sight and head movements through a camera, and automatically rotate the three-dimensional model to adapt to the user's observation perspective. The language explanation system is used to cooperate with the dynamic process display unit to play the explanation content corresponding to the production process steps.

10. A product image acquisition and display method according to the intangible cultural heritage product image acquisition device according to any one of claims 1 to 9, characterized in that: The display method comprises the following steps: Step A: firstly, the product is placed on the surface of the display stand (103) and is placed at the center of the cross point. At this time, the second servo motor (207) drives the vertical driving gear (203) to rotate, and then the vertical driving gear (203) drives the vertical driven half gear (204) to rotate, so that the vertical driven half gear (204) drives the image acquisition module (3) to move above the display stand (103), so that the top camera (303) can continuously shoot the product while following the vertical driven half gear (204) to move at a uniform speed to adjust the shooting angle; Step B: When the image shooting at one of the vertical angles is completed, the first servo motor (111) drives the lateral driving gear (110) to rotate, so that the lateral driving gear (110) drives the lateral driven gear (104) to rotate, and then the lateral driven gear (104) drives the vertical rotating mechanism (2) to rotate synchronously, thereby adjusting the shooting angle of the top camera (303), so as to complete the 360°×270° image acquisition and shooting of the product by the top camera (303); Step C: When the bottom of the product has patterns such as printing or etching, it is necessary to capture images of the bottom of the product. First, the hanging wire (405) is pulled outward, and the two hanging wires (405) are respectively wound around the upper and lower ends of the product. Then, the winding drum (404) is driven by the rotating shaft (403) to rotate and straighten the hanging wire (405), so that the hanging wire (405) pulls the product to keep it suspended. At this time, the screw motor (105) can drive the screw (106) to rotate, so that the screw (106) drives the movable sleeve (108) to rise and fall, thereby driving the bottom camera (107) to rise and fall through the movable sleeve (108), thereby adjusting the position of the bottom camera (107), and then the bottom camera (107) is used to capture images of the bottom of the product. At the same time, the top camera (303) can be used to capture images of the product at other angles to prevent the situation where the required viewing angle image cannot be captured due to blind spots. Step D: After the image acquisition of the product is completed, the acquired image is subjected to denoising and demosaicing processing by the image processing module, and key features such as texture and color are extracted, and the three-dimensional point cloud model of the product is produced by the three-dimensional reconstruction unit using the images acquired by the bottom camera (107) and the top camera (303), and then a high-precision digital model is constructed by a grid optimization algorithm, so as to import the model into the AR processing module; Step E: The imported three-dimensional model is then projected into the user's physical space through the AR processing module, and gestures and language interactions are supported to adjust the model angle and scaling. During the display process, a dynamic display of the product manufacturing process is superimposed on the surface of the three-dimensional model through the dynamic process display unit. At the same time, the user's line of sight and head movement are captured through the camera in the head tracking unit, and the three-dimensional model is automatically rotated to adapt to the user's observation angle. The language explanation system and the dynamic process display unit are used to play the explanation content corresponding to the production process steps.

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