Transparent highlight object light field shooting device

Abstract

The utility model provides a transparent highlight object light field shooting device which comprises a supporting frame, the top of the supporting frame is fixedly connected with a shell through a supporting rod, a surrounding shooting assembly is arranged in the shell, a lifting rod is arranged at the top of the supporting frame, the output end of the top of the lifting rod is connected with an object placing table, and the object placing table is connected with a camera. The object placing table is located in the center of the shell, and the supporting frame is further provided with a camera control module, a lifting control module, a power source and a port. Compared with a shooting scheme in an open environment, the shooting scheme provided by the utility model can isolate external interference light, ensure that the surface of an object to be shot obtains more uniform illumination, improve the quality of shot images, and improve the shooting efficiency. The camera control module, the camera and the track can enable the device to autonomously and efficiently complete the shooting process of the multi-view image, and the camera parameters of the obtained multi-view image are stable and accurate.

Description

Technical Field

[0001] The utility model discloses a transparent high-gloss object light field shooting device, belonging to the field of high-gloss object shooting devices. Background Art

[0002] In the 3D reconstruction scheme based on multi-view images, the ability to conveniently and efficiently obtain high-quality multi-view images and accurate camera parameters is crucial to the quality of 3D reconstruction.

[0003] The current mainstream solution is to use a handheld device to subjectively surround the object to be reconstructed in an open scene, and then use a software algorithm to estimate the camera parameters as the input of the 3D reconstruction system. This type of solution has the following defects: a) The efficiency of the photographer using a handheld device to surround the object is low; b) The image quality output by the photographer using a handheld device to surround the object is poor, and the image quality of different views cannot be consistent; c) Shooting in an open scene will obscure the information of the object itself due to highlights, shadows, etc.; d) The accuracy of the camera parameters estimated by the algorithm is not enough, which will affect the accuracy of subsequent 3D reconstruction.

[0004] In the prior art, there is a spherical light source device that emits light inwardly, such as that disclosed in CN201265853, which uses a spherical device for shooting. A fixed light source is set on the outer sphere, and the inner sphere is made of a transparent material. The outer and inner spheres are photographed through reserved shooting holes. This solution is effective in eliminating highlights, but the fixed light source irradiation direction will still make the light received by the surface of the object mainly come from a certain direction, and it is impossible to achieve true uniform illumination. In addition, this solution is suitable for shooting with handheld devices by reserving shooting holes, and it is impossible to efficiently and accurately capture multi-view images for three-dimensional reconstruction.

[0005] In order to solve the problems of low efficiency, highlight influence, and inaccurate camera parameters in the multi-view shooting task of transparent highlight objects, the present invention provides a shooting method, device, and system for transparent highlight objects, which can autonomously and efficiently complete hemispherical surround shooting and effectively reduce the adverse effects of highlights. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model aims to provide a light field shooting device for transparent high-gloss objects.

[0007] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0008] A transparent high-gloss object light field shooting device comprises a support frame, the top of the support frame is connected and fixed to an outer shell through a support rod, a surround shooting component is arranged inside the outer shell, a lifting rod is arranged on the top of the support frame, an object placement table is connected to the top output end of the lifting rod, and the object placement table is located at the center of the outer shell. A camera control module, a lifting control module, a power supply and a port are also arranged on the support frame.

[0009] Furthermore, the surround shooting assembly includes a plurality of tracks evenly installed inside the shell, a camera is arranged on the tracks, and a plurality of arc-shaped reflectors are arranged inside the shell and between two adjacent tracks, and the plurality of arc-shaped reflectors form a reflector array.

[0010] Furthermore, the surround shooting assembly also includes a circular ring-shaped surface light source lamp arranged at the bottom opening of the shell, and the hole inside the circular ring-shaped surface light source lamp is adapted to the object placement table.

[0011] Furthermore, a polarizing plate is provided at the output end of the camera.

[0012] Furthermore, the shell is a hemispherical structure, and the shell is made of opaque material.

[0013] Furthermore, the support frame includes a side platform and a bottom platform, and the side platform is fixed to one side of the top of the bottom platform.

[0014] Furthermore, the lifting control module is arranged in the base platform, and the camera control module and the power supply and port are both located inside the side platform.

[0015] Furthermore, the lifting rod is electrically connected to the lifting control module, the camera is electrically connected to the camera control module, and both the lifting control module and the camera control module are electrically connected to the power supply and the port.

[0016] Beneficial effects of the utility model:

[0017] Compared with the shooting scheme in an open environment, the shooting scheme of the utility model can isolate external interfering light, ensure that the surface of the object to be photographed obtains more uniform lighting, and improve the quality of the captured image;

[0018] The camera moving method of the utility model: compared with the solution of rotating the object and fixing the camera, the solution can obtain high-quality shooting data of the top of the object; compared with the solution of arbitrarily moving the camera, the solution can ensure the high accuracy of the camera external parameters;

[0019] Compared with directly irradiating the object to be photographed with a light source, the uniform light field generation scheme of the utility model can make the object to be photographed obtain more uniform and soft lighting, avoid the highlight problem, and thus improve the shooting quality of surface details.

[0020] Through the design of the surround shooting component, the shell, reflector array, and circular surface light source provide a light field environment with uniform light distribution for the entire shooting space. Combined with the use of polarizing filters, the highlight problem in surround shooting can be effectively solved and the image quality can be improved. In addition, the camera control module, camera, and track enable the device to autonomously and efficiently complete the multi-view image shooting process, and the obtained multi-view image camera parameters are stable and accurate.

[0021] The outer shell is a hemispherical structure made of opaque material, which has opaque properties and isolates interference from external light. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 This is a schematic diagram of the overall structure of a light field shooting device for a transparent high-gloss object according to the utility model;

[0024] Figure 2 The utility model is a schematic diagram of the assembly structure of a track and a reflector array of a transparent high-gloss object light field shooting device.

[0025] In the figure, 1. side stage; 2. camera control module; 3. housing; 4. camera; 5. track; 6. reflector array; 7. annular surface light source; 8. object placement table; 9. lifting rod; 10. support rod; 11. base; 12. lifting control module; 13. power supply and port; 14. curved reflector. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-Figure 2The utility model provides a technical solution for a transparent high-gloss object light field shooting device, including a support frame, the top of the support frame is connected and fixed to a shell 3 through a support rod 10, a surround shooting component is arranged inside the shell 3, a lifting rod 9 is arranged on the top of the support frame, an object placement platform 8 is connected to the top output end of the lifting rod 9, and the object placement platform 8 is located at the center of the shell 3, and a camera control module 2, a lifting control module 12 and a power supply and port 13 are also arranged on the support frame.

[0028] See also Figure 1-Figure 2 The surround shooting component includes a plurality of tracks 5 evenly installed inside the shell 3, a camera 4 is provided on the track 5, a polarizing plate is provided at the output end of the camera 4, a plurality of arc reflectors 14 are provided inside the shell 3 and between two adjacent tracks 5, and the plurality of arc reflectors 14 form a reflector array 6, and the surround shooting component also includes a ring-shaped surface light source lamp 7 arranged at the bottom opening of the shell 3, the ring-shaped surface light source lamp 7 serves as the only source of light, and the holes inside the ring-shaped surface light source lamp 7 are adapted to the object placement table 8.

[0029] See also Figure 1 The shell 3 is a hemispherical structure and is made of opaque material. The shell 3 has a light-proof property and isolates the interference of external light.

[0030] See also Figure 1 The support frame includes a side stage 1 and a base stage 11, the side stage 1 is fixed to one side of the top of the base stage 11, the lifting control module 12 is arranged in the base stage 11, the camera control module 2 and the power supply and port 13 are both located inside the side stage 1, the lifting rod 9 is electrically connected to the lifting control module 12, the camera 4 is electrically connected to the camera control module 2, and the lifting control module 12 and the camera control module 2 are both electrically connected to the power supply and port 13; the side stage 1 provides side packaging and support, the base stage 11 is used to support the entire shooting device, the camera control module 2 provides the control function of the camera 4, can drive the camera to move on a preset track, and drive the camera to shoot, the lifting control module 12 controls the lifting rod 9 to lift the placement table 8, and the power supply and port 13 provide power and ports for external commands and data transmission.

[0031] When in use, the operator places the object to be photographed on the object placement table 8, and then pushes the object placement table 8 up through the lifting rod 9, so that the object placement table 8 and the object to be photographed enter the shell 3, then turn on the annular surface light source lamp 7, and the light emitted by the annular surface light source lamp 7 reaches the inner wall of the hemisphere covered by the reflector array 6, and the light source will be evenly reflected by the reflector array 6 in all directions to form a softer light. The entire shooting space will be filled with uniform light in all directions. In a uniform and soft light field environment, the camera lens combined with a polarizer can capture better image quality, and because there is no light source directly shining on the object, there will be no particularly prominent highlights in the image. Then, the operator uses a computer connected to the port of the shooting device to observe the imaging quality through the camera 4 to adjust the focal length and the amount of light entering to improve the imaging quality, and select the shooting point. Then, the operator sends a shooting command, and the shooting device will drive the camera 4 to move on the preset track 5 to complete the shooting of all shooting points, and record the camera external parameters and the shot image. Because the shooting points are preset in advance, the camera external parameters are very accurate measurement results.

[0032] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A transparent high-gloss object light field shooting device, characterized in that: The invention comprises a support frame, the top of which is connected and fixed to a housing (3) via a support rod (10), a surround shooting assembly is arranged inside the housing (3), a lifting rod (9) is arranged on the top of the support frame, an object placement platform (8) is connected to the top output end of the lifting rod (9), and the object placement platform (8) is located at the center of the housing (3), and a camera control module (2), a lifting control module (12) and a power supply and port (13) are also arranged on the support frame.

2. The transparent high-gloss object light field shooting device according to claim 1, characterized in that: The surround shooting assembly comprises a plurality of tracks (5) evenly mounted inside the housing (3), a camera (4) being arranged on the tracks (5), a plurality of arc-shaped reflective panels (14) being arranged inside the housing (3) and between two adjacent tracks (5), and the plurality of arc-shaped reflective panels (14) forming a reflective panel array (6).

3. The transparent high-gloss object light field shooting device according to claim 2, characterized in that: The surround shooting assembly further comprises a circular ring-shaped surface light source lamp (7) arranged at the bottom opening of the housing (3), and the hole inside the circular ring-shaped surface light source lamp (7) is adapted to the object placement table (8).

4. The transparent high-gloss object light field shooting device according to claim 3, characterized in that: The output end of the camera (4) is provided with a polarizing plate.

5. The transparent high-gloss object light field shooting device according to claim 1, characterized in that: The outer shell (3) is a hemispherical structure, and the outer shell (3) is made of a light-proof material.

6. The transparent high-gloss object light field shooting device according to claim 1, characterized in that: The support frame comprises a side platform (1) and a bottom platform (11), wherein the side platform (1) is fixed to one side of the top of the bottom platform (11).

7. The transparent high-gloss object light field shooting device according to claim 6, characterized in that: The lifting control module (12) is arranged inside the base platform (11), and the camera control module (2) and the power supply and port (13) are both located inside the side platform (1).

8. The transparent high-gloss object light field shooting device according to claim 7, characterized in that: The lifting rod (9) is electrically connected to the lifting control module (12), the camera (4) is electrically connected to the camera control module (2), and both the lifting control module (12) and the camera control module (2) are electrically connected to the power supply and port (13).

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