CN212850687U - Underwater light field recording device based on camera array - Google Patents
Underwater light field recording device based on camera array Download PDFInfo
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- CN212850687U CN212850687U CN202021510263.4U CN202021510263U CN212850687U CN 212850687 U CN212850687 U CN 212850687U CN 202021510263 U CN202021510263 U CN 202021510263U CN 212850687 U CN212850687 U CN 212850687U
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- camera array
- light field
- recording device
- underwater
- field recording
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Abstract
The utility model discloses an optical field recording device under water based on camera array, a serial communication port, include: a camera array: the system is used for acquiring light field information of an underwater target; a collecting unit: the system is used for synchronously acquiring and transmitting light field information; an illumination module: for providing underwater lighting; a control unit: for controlling the on or off of the illumination module, the camera array, and the brightness of the illumination module, and for storing light field information; a power supply unit: the power supply is used for supplying power; mechanical fasteners and auxiliary elements: the device is used for mounting and fixing; sealing the cabin: the camera array, the acquisition unit, the lighting module, the control unit and the power supply unit are fixedly arranged in the sealed cabin through mechanical firmware and auxiliary elements.
Description
Technical Field
The utility model relates to a light field imaging technology field especially relates to a light field recording device under water based on camera array under water.
Background
The underwater imaging technology is increasingly applied to ocean detection and development by virtue of the outstanding advantages of high intuition, high resolution and intellectualization, however, due to the complexity and changeability of the underwater imaging environment, particularly the existence of a large number of suspended particles in water bodies such as near-shore seawater, lakes, rivers and the like, the complex scattering and absorption of the particles cause the reduction of the underwater imaging quality, further cause the energy attenuation of light transmitted in the water body medium, and seriously limit the application range of the underwater imaging.
The calculation imaging based on the light field imaging technology is a novel imaging method, different from the traditional imaging, the technology not only records the intensity of imaging light, but also captures the angle of incident light, therefore, a four-dimensional light field with one-dimensional angle coordinates is generated, besides three-dimensional coordinates, one of the important characteristics of the camera is that the camera firstly takes pictures (4D light field recording) and then images (4D calculation imaging), except that clear in-focus images can be calculated according to a set depth value, even information which is blocked and cannot be imaged in the traditional imaging can be captured, if the light field is obtained by taking pictures at different positions through a single camera, the camera is obviously infeasible underwater, and due to the limitation of underwater equipment conditions, a large-scale camera array is difficult to achieve good synchronous acquisition of data in the underwater conditions.
Disclosure of Invention
Based on light field imaging technology, the utility model provides an optical field recording device under water based on camera array to solve because the water absorbs and the problem that the quality of imaging is poor under water that the scattering caused, realize big depth of field, need not to focus, target formation of image under the high quality water.
An aspect of the utility model provides an optical field recording device under water based on camera array, include:
a camera array: the system is used for acquiring light field information of an underwater target;
a collecting unit: the system is used for synchronously acquiring and transmitting light field information;
an illumination module: for providing underwater lighting;
a control unit: the controller is used for controlling the on or off of the lighting module, the camera array and the brightness and darkness of the lighting module; and for storing light field information;
a power supply unit: the power supply is used for supplying power;
mechanical fasteners and auxiliary elements: the device is used for mounting and fixing;
sealing the cabin: for packaging and underwater operation.
Furthermore, the camera array, the acquisition unit, the illumination module, the control unit and the power supply unit are fixedly installed in the sealed cabin through mechanical fasteners and auxiliary elements.
Further, the number of the camera arrays is six, and the number of the cameras is the minimum number capable of completing light field reconstruction.
Furthermore, the camera array is installed and fixed in a close-fitting hexagonal arrangement mode by taking the center as a point.
Further, the camera comprises a single-board camera and a lens assembly.
Further, the lens assemblies have the same focal length.
Further, the lens assembly includes a telephoto lens and a wide-angle lens.
Further, an illumination module is installed in the center of the camera array.
Furthermore, the acquisition unit comprises six output ports and an output port, the input ports are connected with the camera to realize synchronous and simultaneous acquisition, and the output port is connected with the control unit.
Further, the control unit comprises an embedded computer and a PC104, and is connected with the lighting module.
Furthermore, the power supply unit comprises a switching power supply which is connected with the lighting module and the control unit.
Furthermore, the sealed cabin comprises a front end cover, a rear end cover and a metal cylinder, wherein the rear end cover is provided with a watertight connector, and the watertight connector is communicated with the outside in real time and supplies power to the outside; the front end cover is provided with an optical glass window, and the camera array is close to the optical glass window.
Compared with the prior art, the utility model discloses a present a device that is used for light field record under water with the help of the light field principle, one kind promptly based on camera array is light field camera under water, the beneficial effects of the utility model are as follows:
1. the problem that a commercial light field camera cannot work underwater is solved;
2. through the light field refocusing algorithm, the effect of focusing after photographing can be realized, and the problem of insufficient depth of field in underwater photographing is solved;
3. the field of view and the resolution are effectively increased based on the light field imaging mode of the camera array;
4. the scattering noise elimination method based on computational imaging processes the obtained light field information, and solves the problem of image quality degradation caused by scattering noise.
Therefore the utility model provides an underwater light field recording device based on camera array and light field imaging method can realize the light field formation of image of high resolution, high depth of field of target object.
Drawings
Fig. 1 is a front view of the underwater optical field recording device of the present invention.
Fig. 2 is a side view of the underwater light field recording device of the present invention.
Fig. 3 is a schematic structural diagram of the camera array according to the present invention.
The reference numbers are as follows:
1. the device comprises an illumination module, 2 a fixing plate, 3 a metal cylinder, 4 a first supporting plate, 5 an acquisition unit, 6 a control unit, 7 a power supply unit, 8 a second supporting plate, 9 a rear end cover, 10 a third supporting plate, 11 a fourth supporting plate and 12 a front end cover.
Detailed Description
In order to facilitate understanding of the embodiments of the present invention, the following description will be made in terms of specific embodiments with reference to the accompanying drawings, and the embodiments are not intended to limit the embodiments of the present invention. Furthermore, the drawings are schematic and, thus, the present devices and apparatus are not limited by the size or scale of the schematic.
It is to be noted that in the claims and the description of the present patent, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the use of the verb "comprise a" to define an element does not exclude the presence of another, same element in a process, method, article, or apparatus that comprises the element.
As shown in fig. 1, a schematic structural diagram of an underwater light field recording device specifically includes: the camera array, the acquisition unit 5, the lighting module 1, the control unit 6, the power supply unit 7, the mechanical firmware and the auxiliary element, the sealed cabin, the camera array, the acquisition unit 5, the lighting module 1, the control unit 6, the power supply unit 7 are fixed in the sealed cabin through the mechanical firmware and the auxiliary element, and the sealed cabin is arranged under water to work.
As shown in fig. 3, the camera arrays are mounted on the fixed plate 2 in a close-coupled hexagonal arrangement around the center of the fixed plate 2, six cameras are placed in the shape of the smallest hexagon that will not collide with each other, and the number of camera arrays is the smallest number that can complete the light field reconstruction; the camera adopts a single-board camera, a lens mount is arranged in front of each single-board camera, lenses with the same focal length are arranged on the lens mount, a telephoto lens or a wide-angle lens can be selected according to the shooting requirement, the telephoto lens is suitable for shooting medium and long distance target objects, and the wide-angle lens is suitable for shooting larger target objects.
As shown in fig. 1-2, the acquisition unit 5 includes six output ports and one output port, the input ports are connected to the camera array to realize synchronous and simultaneous acquisition, and the output port is connected to the control unit 6.
The control unit 6 comprises an embedded computer and a PC104, is connected with the lighting module 1, and is used for controlling the on/off of the lighting module 1 and adjusting the brightness of the lighting source; the acquisition unit 5 is used as an intermediate medium and is connected with the control unit 6 and the camera array, so that the control unit 6 controls the camera array to be switched on or off, and light field information acquired by the camera array is transmitted to the control unit 6 and stored.
The power supply unit 7 comprises a switch power supply and is connected with the lighting module 1, the control unit 6 and the acquisition unit 5 for supplying power.
The fixing plate 2 is a circular metal plate, an aluminum plate, stainless steel and the like can be selected as materials, the central position is provided with the fixed lighting module 1, and a through hole is formed for arranging the data line.
The lighting module 1 can select the array LED lamps with different color temperatures such as green, white and the like, preferably green LED lamps, green light is attenuated lower underwater, and the LEDs can avoid the generation of speckles.
The sealed cabin comprises a front end cover 12, a rear end cover 9 and a metal cylinder 3, wherein an optical glass window is arranged on the front end cover 12, and the camera array is close to the optical glass window; the light source of the lighting module 1 irradiates a target object through the optical glass window, the target object reflects light back to the optical glass window, light field information carrying the target object enters the camera array through the optical glass window, and the camera array collects the light field information.
The rear end cover 9 is provided with a watertight connector which is used for real-time communication with the outside and receiving voltage provided by the outside.
The mechanical fixing and auxiliary elements comprise a first support plate 4, a second support plate 8, a third support plate 10 and a fourth support plate 11, the fixing plate 2 is mounted on the first support plate 4 through adjusting studs, and the camera array angle adjustment can be realized through the adjusting studs; the first supporting plate 4 is provided with a rectangular through hole and a circular through hole for laying cables; the second supporting plate 8 is fixedly arranged on the rear end cover 9 through a fastener; the third support plate 10 and the fourth support plate 11 are arranged between the first support plate 4 and the second support plate 8; the fourth supporting plate 11 is provided with an acquisition unit 5 and a power supply unit 7; the third support plate 10 has a control unit 6 mounted thereon.
The control unit 6 is preferably selected from, but not limited to, the Jetson TX2 module from the company Nvidia.
The foregoing is merely a preferred embodiment of the present invention, and it should be understood that the embodiments described are only a part of the present invention, and not all embodiments. Based on the utility model discloses an embodiment, all other embodiments that technical field's technical personnel obtained under the prerequisite of not making creative work all belong to the utility model discloses a protection scope. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be covered within the protection scope of the present invention, and the protection scope of the present invention should be subject to the protection scope of the claims.
Claims (10)
1. An underwater light field recording device based on a camera array, the underwater light field recording device comprising:
a camera array: the camera array is used for acquiring light field information of an underwater target;
acquisition unit (5): the acquisition unit (5) realizes synchronous acquisition and is used as a medium for transmitting light field information;
lighting module (1): the lighting module (1) is used for providing underwater lighting;
control unit (6): the control unit (6) is used for controlling the lighting module (1), the camera array to be switched on or off, and the lighting module (1) to be bright or dark; and for storing light field information;
power supply unit (7): the power supply unit (7) is used for supplying power;
mechanical fasteners and auxiliary elements: the mechanical firmware and the auxiliary element are used for installation and fixation;
sealing the cabin: the sealed cabin is used for packaging and underwater work;
the camera array, the acquisition unit (5), the lighting module (1), the control unit (6) and the power supply unit (7) are fixedly arranged in the sealed cabin through mechanical firmware and auxiliary elements.
2. The underwater light field recording device based on camera array according to claim 1, characterized in that the number of said camera array is six, which is the minimum number of cameras that can accomplish light field reconstruction.
3. The underwater light field recording device based on the camera array as claimed in claim 1, wherein the cameras are installed and fixed in a close hexagonal arrangement with the center as a point.
4. The camera array based underwater light field recording device according to claim 1, wherein the camera comprises a single-board camera and a lens assembly.
5. The camera array based underwater light field recording device according to claim 4, wherein the lens assemblies are of the same focal length.
6. The camera array-based underwater light field recording device according to claim 4, wherein the lens assembly includes a telephoto lens and a wide-angle lens.
7. The underwater light field recording device based on a camera array according to claim 1 is characterized in that an illumination module (1) is installed in the center of the camera array.
8. The camera array based underwater light field recording device according to claim 1, wherein the acquisition unit (5) comprises six output ports and one output port, the input ports are connected with the camera array to realize synchronous simultaneous acquisition, and the output port is connected with the control unit (6).
9. The camera array based underwater light field recording device according to claim 1, characterized in that the control unit (6) comprises an embedded computer, PC104, connected with the lighting module (1).
10. The camera array based underwater light field recording device according to claim 1, wherein the power supply unit (7) comprises a switching power supply, and is connected with the lighting module (1) and the control unit (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021510263.4U CN212850687U (en) | 2020-07-28 | 2020-07-28 | Underwater light field recording device based on camera array |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021510263.4U CN212850687U (en) | 2020-07-28 | 2020-07-28 | Underwater light field recording device based on camera array |
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| Publication Number | Publication Date |
|---|---|
| CN212850687U true CN212850687U (en) | 2021-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021510263.4U Expired - Fee Related CN212850687U (en) | 2020-07-28 | 2020-07-28 | Underwater light field recording device based on camera array |
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| Country | Link |
|---|---|
| CN (1) | CN212850687U (en) |
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2020
- 2020-07-28 CN CN202021510263.4U patent/CN212850687U/en not_active Expired - Fee Related
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Granted publication date: 20210330 |