CN212086295U - A camera array device for recording light field information - Google Patents

Abstract

The utility model discloses a camera array device for recording light field information, comprising a camera array, a lighting module, a fixing plate and a mechanical firmware. The lighting module is installed at the center of the fixed plate, the camera includes a single-board camera and a lens assembly, the lens assembly includes a lens holder and a lens group, the lens groups have the same focal length, and the lens group includes a long Focus lens group and wide-angle lens group.

Description

A camera array device for recording light field information

technical field

The utility model relates to the field of light field imaging, in particular to a camera array device for recording light field information.

Background technique

Due to the outstanding advantages of high intuitiveness, resolution and intelligence, underwater imaging technology has been used more and more in ocean exploration and development. There are a large number of suspended particles in water bodies such as river channels. The complex scattering and absorption of particles cause the decline of underwater imaging quality, and then cause the energy attenuation of light transmitted in the water medium, which seriously limits the application scope of underwater imaging.

Light field camera and computational imaging are a new type of imaging method. Different from traditional imaging, this technology not only records the intensity of the imaging light, but also captures the angle of the incident light. Therefore, it generates a one-dimensional angular coordinate in addition to the three-dimensional coordinate. Four-dimensional light field. One of the important features of light field cameras is to take pictures first (4D light field recording) and then image (4D computational imaging). In addition to calculating clear and in-focus images according to the set depth of field value, it can even capture images that are occluded in traditional imaging. For information that cannot be imaged, it is obviously not feasible to obtain the light field by shooting at different positions with a single camera, and due to the limitations of underwater equipment conditions, large-scale camera arrays are also difficult to operate under underwater conditions. It is very good to achieve synchronous acquisition of data.

SUMMARY OF THE INVENTION

The purpose of the present utility model is to provide a camera array device for recording light field information, which is packaged in an underwater sealed cabin and can be used for recording underwater light field information, and solves the problems raised in the above background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions, a camera array device for recording light field information, comprising:

Camera array: used to collect the light field information of the target;

Lighting module: used to provide lighting;

Fixing plate: used for installation and fixing;

Mechanical firmware: auxiliary fixation;

The camera array and the lighting module are installed and fixed on the fixing plate by mechanical firmware.

Further, the camera array is installed and fixed in a close hexagonal arrangement with the center as the point.

Further, the number of the camera array is six, and the number of cameras is the minimum number that can complete the reconstruction of the light field.

Further, the camera includes a single-board camera and a lens assembly.

Further, the lens assembly includes a lens holder and a lens group.

Further, the lens groups have the same focal length.

Further, the lens group includes a telephoto lens group and a wide-angle lens group.

Further, the lighting module is an LED lamp array.

Further, the LED lamp array is green and white.

Further, the fixing plate is circular or square.

Compared with the prior art, the beneficial effects of the present utility model are:

1. The present utility model solves the problem that the light field camera cannot be collected underwater due to the limitation of volume and image acquisition by presenting a camera array device for recording light field information by means of the light field principle, combined with the underwater detection sealing device;

2. Compared with the traditional light field camera based on microlens array, the field of view is increased and the resolution is improved,

3. The scattering noise elimination method based on computational imaging processes the obtained light field information and solves the problem of image quality deterioration caused by scattering noise;

4. Solve the problem of insufficient depth of field in underwater shooting, no need to focus;

5. The camera array device has a compact structure and a small volume, and can be conveniently and quickly combined with an underwater detection and sealing device, so as to be used for underwater high-quality, high-resolution optical field imaging.

Description of drawings

Figure 1 is a schematic structural diagram of the utility model.

The reference numbers are as follows:

1. Lighting module, 2 fixing plates, 3 single-board cameras, 4 lens assemblies.

Detailed ways

In order to facilitate the understanding of the embodiments of the present utility model, the following will be further explained with specific embodiments in conjunction with the accompanying drawings, and each embodiment does not constitute a limitation to the embodiments of the present utility model. In addition, the accompanying drawings are schematic diagrams, so the utility model The novel apparatus and apparatus are not limited by the size or scale of the schematic drawings.

It should be noted that, in the claims and description of this patent, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or Any such actual relationship or order between these entities or operations is implied, and the terms "comprising", "comprising" or any other variation thereof are intended to cover non-exclusive inclusion such that a process comprising a series of elements, A method, article or apparatus includes not only those elements, but also other elements not expressly listed, or which are inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a" does not preclude the presence of additional identical elements in a process, method, article, or device that includes the element.

Figure 1 is a schematic structural diagram of a camera array device for recording light field information, including a camera array, a lighting module 1, a fixing plate 2, and a mechanical firmware.

The camera array is installed and fixed on the fixing plate 2 by mechanical firmware; the lighting module 1 is installed and fixed at the center of the fixing plate 2 .

The camera array is installed and fixed around the center of the fixed plate 2 in a close-fitting hexagonal arrangement. The six cameras are placed in the shape of the smallest hexagon that will not collide with each other. The number of the camera array is the smallest that can complete the light field reconstruction. The camera adopts a single-board camera 3, and a lens assembly 4 is installed in front of each single-board camera 3, and the lens assembly 4 includes a lens holder and a lens group, and the lens group is mounted on the lens holder, and the same For the focal length lens group, you can choose a telephoto lens group or a wide-angle lens group according to the shooting needs. The telephoto lens group is suitable for shooting medium and long-distance objects, and the wide-angle lens group is suitable for shooting larger objects.

The lighting module 1 can select array LED lights with different color temperatures such as green and white, preferably green LED lights, the green light has low attenuation under water, and the LED can avoid the generation of speckle.

The fixing plate 2 is circular or square.

The above are only the preferred specific implementation examples of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, the technical field All other embodiments obtained by the technical personnel without creative work, all belong to the protection scope of the present invention, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention , should be included 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 (8)

1. A camera array device for recording light field information, characterized by comprising a camera array, an illumination module (1), and a fixing plate (2), wherein the camera array is mounted and fixed on the center in a close hexagonal arrangement around the center. On the fixing plate (2), the lighting module (1) is installed at the center of the fixing plate (2). 2 . The camera array device for recording light field information according to claim 1 , wherein the number of the camera array is six, and the number of cameras is the minimum number that can complete the light field reconstruction. 3 . 3. The camera array device for recording light field information according to claim 1, wherein the camera comprises a single-board camera (3) and a lens assembly (4). 4 . The camera array device for recording light field information according to claim 3 , wherein the lens assembly ( 4 ) comprises a lens holder and a lens group. 5 . 5 . The camera array device for recording light field information according to claim 4 , wherein the lens groups have the same focal length. 6 . 6 . The camera array device for recording light field information according to claim 4 , wherein the lens group comprises a telephoto lens group and a wide-angle lens group. 7 . 7 . The camera array device for recording light field information according to claim 1 , wherein the lighting module ( 1 ) is an LED lamp array. 8 . 8 . The camera array device for recording light field information according to claim 7 , wherein the LED lamp array is green and white. 9 .

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