CN216668622U - Image acquisition device of three-dimensional reconstruction - Google Patents
Image acquisition device of three-dimensional reconstruction Download PDFInfo
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- CN216668622U CN216668622U CN202220170359.3U CN202220170359U CN216668622U CN 216668622 U CN216668622 U CN 216668622U CN 202220170359 U CN202220170359 U CN 202220170359U CN 216668622 U CN216668622 U CN 216668622U
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- 238000009434 installation Methods 0.000 abstract description 5
- 238000005259 measurement Methods 0.000 abstract description 5
- 239000011435 rock Substances 0.000 abstract description 5
- 238000003384 imaging method Methods 0.000 abstract description 2
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Abstract
The utility model relates to the technical field of three-dimensional imaging, in particular to an image acquisition device for three-dimensional reconstruction, which comprises an installation frame, wherein the upper end of the installation frame is rotatably connected with a turntable and an arc-shaped frame; utilize first camera to scan the surface of object comprehensively, the cooperation second camera scans the bottom of object, realizes not having the dead angle and shoots, and the conversion matrix of the single visual angle data of different visual angles and different visual angles carries out three-dimensional reconstruction, can not rock when the object is rotated slowly, can guarantee higher measurement accuracy.
Description
Technical Field
The utility model relates to the technical field of three-dimensional imaging, in particular to an image acquisition device for three-dimensional reconstruction.
Background
Three-dimensional reconstruction (also called three-dimensional reconstruction) refers to a key technology for describing the shape distribution of a three-dimensional object by using data point cloud and establishing virtual reality expressing an objective world in a computer. Early three-dimensional reconstruction techniques were mainly used for measuring large objects (such as buildings, automobiles, etc.), and with the development of modern technologies and manufacturing processes, three-dimensional reconstruction techniques are applied to more and more industries.
The prior art discloses a part of patent documents with three-dimensional reconstruction, and Chinese patent with application number of CN201810045501.X discloses a three-dimensional reconstruction system and a method, wherein the system comprises a carrying device, the carrying device comprises a rotatable rotating frame and a carrying platform arranged on the rotating frame, and the rotating frame is provided with a rotating shaft; the data acquisition device is arranged at intervals with the objective table and is used for acquiring reflected light data of an object on the objective table when the rotating frame rotates to a corresponding angle to obtain single-view-angle data of the object at a corresponding angle; and the data processing device is connected with the data acquisition device and is used for carrying out three-dimensional reconstruction according to the single-view data and the reconstruction algorithm.
The three-dimensional reconstruction technology is mainly realized through an optical method, including confocal scanning, laser scanning, focus morphology recovery, white light interference and the like, the optical method has the advantages of no damage, rapidness, low cost and the like, but most of the existing three-dimensional reconstruction is single-view-angle data, and can not comprehensively scan an object, so that the three-dimensional reconstruction data has certain defects, and therefore, the three-dimensional reconstruction image acquisition device is provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defects in the prior art and provides an image acquisition device for three-dimensional reconstruction.
In order to achieve the above purposes, the technical scheme adopted by the utility model is as follows: the image acquisition device for three-dimensional reconstruction comprises a mounting frame, wherein the upper end of the mounting frame is rotatably connected with a turntable and an arc-shaped frame, the upper end of the turntable is fixedly connected with a second camera, a carrying plate is arranged on the upper side of the turntable, a first camera is arranged on the upper side of the arc-shaped frame, a rotating assembly is arranged on the lower side of the mounting frame and is used for driving the carrying plate to rotate; the during operation, place the object in the upside of carrying the thing board, open first camera and second camera and shoot the scanning to the object, output through the second motor drives the worm and rotates, drive the object at last and rotate, utilize the surface of first camera comprehensive scanning object, the bottom that the cooperation second camera scanned the object, realize no dead angle and shoot, the conversion matrix of the single visual angle data of different visual angles and different visual angles carries out three-dimensional reconstruction, can not rock when the object rotation of slowing down, can guarantee higher measurement accuracy.
Preferably, the rotating assembly comprises a worm wheel, a second motor, a U-shaped shaft frame and a worm, the worm wheel is rotatably connected to the lower end of the mounting frame, the worm wheel is fixedly connected with the axis of the turntable, the U-shaped shaft frame is fixedly connected to the lower end of the mounting frame, the worm is rotatably connected into the U-shaped shaft frame, the second motor is fixedly connected to one side of the U-shaped shaft frame, and the output end of the second motor is fixedly connected to the worm; during operation, the output through the second motor drives the worm and rotates, the worm drives the worm wheel and rotates at a slow speed, the worm wheel drives the carousel and rotates at a slow speed to drive and carry the slow rotation of thing board, the object is placed in the upside of carrying the thing board, when the object rotates, utilize first camera to scan the surface of object comprehensively, the bottom of cooperation second camera scanning object realizes no dead angle and shoots, the conversion matrix of the single visual angle data of different visual angles and different visual angles carries out three-dimensional reconstruction, improves the accuracy of three-dimensional reconstruction data.
Preferably, the upper end of the turntable is fixedly connected with a support rod and an annular lamp, the carrying plate is fixedly connected to the upper end of the support rod, and the annular lamp is positioned on the lower side of the carrying plate; the during operation carries the thing board and is transparent material, can shoot the scanning to the bottom of object through the second camera to acquire the bottom data of object, the setting of annular lamp can strengthen the luminance of object bottom, is favorable to scanning.
Preferably, an arc-shaped groove is formed in the arc-shaped frame, a sliding block is connected in the arc-shaped groove in a sliding mode, an arc-shaped rack plate is fixedly connected to the upper side of the sliding block, and the first camera is fixedly connected to the upper end of the arc-shaped rack plate; during operation, slide in the arc wall through the slider, can adjust the position of first camera to adjust the scanning angle of first camera, can carry out concrete adjustment according to actual conditions, so that scan the object of different shapes.
Preferably, one side of the arc-shaped frame is fixedly connected with a first motor, the output end of the first motor is fixedly connected with a first gear, and the first gear is meshed with the arc-shaped rack plate; during operation, the output end of the first motor drives the first gear to rotate, and the first gear drives the arc-shaped rack plate to move, so that the first camera is driven to move, and the angle for adjusting the scanning of the first camera is achieved.
Preferably, the upper end of the arc-shaped frame is fixedly connected with an LED bulb, and the LED bulb is positioned on the lower side of the first camera; during operation, LED bulb and first camera are located the same one side of carrying the thing board for the angle that first camera was shot has sufficient light source, avoids the not enough data defect that leads to of light.
Compared with the prior art, the utility model has the following beneficial effects:
(1) the output through the second motor in this scheme drives the worm and rotates, drives the object rotation at last, utilizes first camera to scan the surface of object comprehensively, and the bottom of cooperation second camera scanning object realizes having no dead angle and shoots, and the single visual angle data of different visual angles and the conversion matrix of different visual angles carry out three-dimensional reconstruction, can not rock when the object slowly rotates, can guarantee higher measurement accuracy.
(2) The output through first motor drives first gear revolve, and first gear drives the removal of arc rack board to drive first camera and remove, thereby adjust the scanning angle of first camera, can carry out concrete adjustment according to actual conditions, so that scan the object of different shapes.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic bottom view of the present invention;
FIG. 3 is a schematic view of a first camera mounting structure of the present invention;
fig. 4 is a schematic view of an exploded structure of the rotating assembly of the present invention.
In the figure: 1. a mounting frame; 2. a turntable; 3. a support bar; 4. a loading plate; 5. an annular lamp; 6. a second camera; 7. an arc-shaped frame; 8. a slider; 9. an arc-shaped rack plate; 10. a first camera; 11. a first motor; 12. a first gear; 13. an LED bulb; 14. a worm gear; 15. a second motor; 16. a U-shaped shaft bracket; 17. a worm; 18. an arc-shaped groove.
Detailed Description
The following description is presented to disclose the utility model so as to enable any person skilled in the art to practice the utility model. The preferred embodiments described below are by way of example only, and other obvious variations will occur to those skilled in the art.
As shown in fig. 1-4, the image acquisition device with three-dimensional reconstruction comprises an installation frame 1, wherein the upper end of the installation frame 1 is rotatably connected with a turntable 2 and an arc-shaped frame 7, the upper end of the turntable 2 is fixedly connected with a second camera 6, an object carrying plate 4 is arranged on the upper side of the turntable 2, a first camera 10 is arranged on the upper side of the arc-shaped frame 7, and a rotating assembly is arranged on the lower side of the installation frame 1 and used for driving the object carrying plate 4 to rotate; the during operation, place the object in the upside of carrying thing board 4, open first camera 10 and second camera 6 and shoot the scanning to the object, output through second motor 15 drives worm 17 and rotates, drive the object at last and rotate, utilize the surface of first camera 10 comprehensive scanning object, cooperation second camera 6 scans the bottom of object, realize no dead angle and shoot, the conversion matrix of the single visual angle data of different visual angles and different visual angles carries out three-dimensional reconstruction, can not rock when the object rotation of slowing down, can guarantee higher measurement accuracy.
Specifically, the rotating assembly comprises a worm wheel 14, a second motor 15, a U-shaped shaft frame 16 and a worm 17, the worm wheel 14 is rotatably connected to the lower end of the mounting frame 1, the worm wheel 14 is fixedly connected with the axis of the turntable 2, the U-shaped shaft frame 16 is fixedly connected to the lower end of the mounting frame 1, the worm 17 is rotatably connected into the U-shaped shaft frame 16, the second motor 15 is fixedly connected to one side of the U-shaped shaft frame 16, and the output end of the second motor 15 is fixedly connected to the worm 17; during operation, output through second motor 15 drives worm 17 and rotates, worm 17 drives worm wheel 14 and rotates at a slow speed, worm wheel 14 drives 2 slow speed rotations of carousel, thereby it slowly rotates to drive year thing board 4, the object is placed in the upside of carrying thing board 4, when the object rotates, utilize the surface of first camera 10 comprehensive scanning object, cooperation second camera 6 scans the bottom of object, realize no dead angle and shoot, the conversion matrix of the single visual angle data of different visual angles and different visual angles carries out three-dimensional reconstruction, the accuracy of three-dimensional reconstruction data is improved.
Specifically, the upper end of the turntable 2 is fixedly connected with a support rod 3 and an annular lamp 5, the carrying plate 4 is fixedly connected with the upper end of the support rod 3, and the annular lamp 5 is positioned at the lower side of the carrying plate 4; during operation carries thing board 4 to be transparent material, can shoot the scanning to the bottom of object through second camera 6 to acquire the bottom data of object, the setting of annular lamp 5 can strengthen the luminance of object bottom, is favorable to scanning.
Specifically, an arc-shaped groove 18 is formed in the arc-shaped frame 7, a sliding block 8 is connected in the arc-shaped groove 18 in a sliding mode, an arc-shaped rack plate 9 is fixedly connected to the upper side of the sliding block 8, and a first camera 10 is fixedly connected to the upper end of the arc-shaped rack plate 9; during operation slides in arc wall 18 through slider 8, can adjust the position of first camera 10 to adjust the scanning angle of first camera 10, can carry out specific adjustment according to actual conditions, so that scan the object of different shapes.
Specifically, one side of the arc-shaped frame 7 is fixedly connected with a first motor 11, the output end of the first motor 11 is fixedly connected with a first gear 12, and the first gear 12 is meshed with the arc-shaped rack plate 9; during operation, the output end of the first motor 11 drives the first gear 12 to rotate, and the first gear 12 drives the arc-shaped rack plate 9 to move, so that the first camera 10 is driven to move, and the angle for adjusting the scanning of the first camera 10 is achieved.
Specifically, the upper end of the arc-shaped frame 7 is fixedly connected with an LED bulb 13, and the LED bulb 13 is positioned on the lower side of the first camera 10; during operation, the LED bulb 13 and the first camera 10 are located the same side of the object carrying plate 4, so that the angle shot by the first camera 10 has a sufficient light source, and data defects caused by insufficient light are avoided.
The working principle of the utility model is as follows: place the object in the upside of carrying thing board 4, open first camera 10 and second camera 6 and shoot the scanning to the object, output through second motor 15 drives worm 17 and rotates, drive the object at last and rotate, utilize the surface of first camera 10 comprehensive scanning object, the bottom of cooperation second camera 6 scanning object, realize no dead angle and shoot, the conversion matrix of the single visual angle data of different visual angles and different visual angles carries out three-dimensional reconstruction, can not rock when the object slowly rotates, can guarantee higher measurement accuracy.
The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the utility model, but various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined by the appended claims and their equivalents.
Claims (6)
1. The utility model provides an image acquisition device of three-dimensional reconsitution, includes mounting bracket (1), its characterized in that, the upper end of mounting bracket (1) is rotated and is connected with carousel (2) and arc frame (7), the upper end fixedly connected with second camera (6) of carousel (2), the upside of carousel (2) is provided with carries thing board (4), the upside of arc frame (7) is provided with first camera (10), the downside of mounting bracket (1) is provided with runner assembly, runner assembly is used for driving and carries thing board (4) rotation.
2. The image acquisition device for three-dimensional reconstruction according to claim 1, wherein the rotating assembly comprises a worm wheel (14), a second motor (15), a U-shaped shaft bracket (16) and a worm (17), the worm wheel (14) is rotatably connected to the lower end of the mounting bracket (1), the worm wheel (14) is fixedly connected to the axis of the turntable (2), the U-shaped shaft bracket (16) is fixedly connected to the lower end of the mounting bracket (1), the worm (17) is rotatably connected to the U-shaped shaft bracket (16), the second motor (15) is fixedly connected to one side of the U-shaped shaft bracket (16), and the output end of the second motor (15) is fixedly connected to the worm (17).
3. The image capturing device for three-dimensional reconstruction according to claim 2, characterized in that the upper end of the turntable (2) is fixedly connected with a support rod (3) and a ring light (5), the object carrying plate (4) is fixedly connected with the upper end of the support rod (3), and the ring light (5) is located at the lower side of the object carrying plate (4).
4. The image acquisition device for three-dimensional reconstruction according to claim 3, wherein an arc-shaped groove (18) is formed in the arc-shaped frame (7), a sliding block (8) is slidably connected in the arc-shaped groove (18), an arc-shaped rack plate (9) is fixedly connected to the upper side of the sliding block (8), and the first camera (10) is fixedly connected to the upper end of the arc-shaped rack plate (9).
5. The image acquisition device for three-dimensional reconstruction according to claim 4, characterized in that a first motor (11) is fixedly connected to one side of the arc-shaped frame (7), a first gear (12) is fixedly connected to an output end of the first motor (11), and the first gear (12) is meshed with the arc-shaped rack plate (9).
6. The image acquisition device for three-dimensional reconstruction according to claim 5, characterized in that an LED bulb (13) is fixedly connected to the upper end of the arc-shaped frame (7), and the LED bulb (13) is located at the lower side of the first camera (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220170359.3U CN216668622U (en) | 2022-01-21 | 2022-01-21 | Image acquisition device of three-dimensional reconstruction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220170359.3U CN216668622U (en) | 2022-01-21 | 2022-01-21 | Image acquisition device of three-dimensional reconstruction |
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| Publication Number | Publication Date |
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| CN216668622U true CN216668622U (en) | 2022-06-03 |
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| CN202220170359.3U Expired - Fee Related CN216668622U (en) | 2022-01-21 | 2022-01-21 | Image acquisition device of three-dimensional reconstruction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115314599A (en) * | 2022-08-08 | 2022-11-08 | 轻工业西安机械设计研究院有限公司 | Rotary type three-dimensional scanning equipment and method |
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2022
- 2022-01-21 CN CN202220170359.3U patent/CN216668622U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115314599A (en) * | 2022-08-08 | 2022-11-08 | 轻工业西安机械设计研究院有限公司 | Rotary type three-dimensional scanning equipment and method |
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