Multi-view video acquisition device production and correction method and device

Abstract

The present application relates to the technical field of video acquisition, in particular to a multi-view video acquisition device production and correction method and device, the present application comprises a camera and a production track for conveying the camera, the production track is provided with an optical parameter consistency detection room, a parallax consistency detection room and a multi-view parallax verification room; the optical parameter consistency detection room is provided with an optical parameter consistency analysis module, the parallax consistency detection room is provided with a parallax consistency image analysis module, and the multi-view parallax verification room is provided with a multi-view parallax image verification analysis module; the present application is provided with the optical parameter consistency detection room and the parallax consistency detection room, the camera shoots the picture in the optical parameter consistency detection room and the parallax consistency detection room through the camera, then whether the camera is qualified can be judged according to the photo, and the camera screening and consistency matching before the installation and correction of the multi-view camera are facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of video acquisition, in particular to a multi-view video acquisition device production and correction method and device. BACKGROUND

[0002] Video acquisition converts analog video into digital video and saves it in the format of a digital video file. Video acquisition is the process of converting the video signals output by analog cameras, video recorders, LD video disc players, and televisions into binary digital information through dedicated analog-digital conversion equipment. In video acquisition work, the video acquisition card is the main equipment.

[0003] With the rise of virtual reality, augmented reality, and metaverse technology, the demand for dual-view or multi-view video acquisition equipment has also increased. However, during production, it is crucial to quickly and effectively produce such video acquisition equipment, especially to control the rate of defective products. SUMMARY

[0004] The present application aims to provide a multi-view video acquisition device production and correction method and device to solve the problems raised in the background.

[0005] The purpose of the present application can be achieved through the following technical solutions:

[0006] A multi-view video acquisition device production and correction device includes a camera and a production track for transporting the camera. The production track is provided with an optical parameter consistency detection chamber, a parallax consistency detection chamber, and a multi-view parallax verification chamber.

[0007] The optical parameter consistency detection chamber is provided with an optical parameter consistency analysis module, the parallax consistency detection chamber is provided with a parallax consistency image analysis module, and the multi-view parallax verification chamber is provided with a multi-view parallax image verification analysis module. A video acquisition product is provided on the production track between the parallax consistency detection chamber and the multi-view parallax verification chamber, and the camera is installed on the video acquisition product.

[0008] Further, the inner cavity top of the optical parameter consistency detection chamber is provided with a first picture, and the camera takes two pictures of the first picture in the optical parameter consistency detection chamber.

[0009] Further, the inner cavity top of the parallax consistency detection chamber is provided with a second picture, and the production track in the parallax consistency detection chamber is a curved track. The camera takes three pictures of the second picture in the parallax consistency detection chamber.

[0010] Further, the inner cavity top of the multi-view parallax verification chamber is provided with a third picture, and the video acquisition product with the camera installed takes three pictures of the third picture in the multi-view parallax verification chamber.

[0011] Further, the first picture is composed of a black and white uniform distribution grid picture, and the second picture and the third picture are pictures after the first picture is unfolded on a curved surface, wherein a straight line overlaps with a central axis of the curved surface.

[0012] Further, a first output track is arranged on the rear side of the optical parameter consistency detection chamber and on the production track, and a first sorting controller is arranged between the production track and the first output track.

[0013] A second output track is arranged on the rear side of the parallax consistency detection chamber and on the production track, and a second sorting controller is arranged between the production track and the second output track.

[0014] A multi-view video acquisition device production and correction method is executed by the above device, comprising the following steps:

[0015] S1, the camera is placed on the production track, the camera is moved into the optical parameter consistency detection chamber, the first picture is photographed twice by the camera, when the photographed photos have deviation, the unqualified camera is sent to the first output track by the first sorting controller, and the qualified camera continues to be transported along the production track;

[0016] S2, the qualified camera in step S1 is transported into the parallax consistency detection chamber, the second picture is photographed three times when the camera passes through the concave part of the curved track, when the photographed photos have deviation, the unqualified camera is sent to the second output track by the second sorting controller, and the qualified camera continues to be transported along the production track;

[0017] S3, the qualified camera in step S2 is installed on the video acquisition product, and then the video acquisition product is transported into the multi-view parallax verification chamber, the third picture is photographed three times by the camera, and the video acquisition product with normal photos is a qualified product.

[0018] Further, the first picture is composed of a black and white uniform distribution grid picture, and the second picture and the third picture are pictures after the first picture is unfolded on a curved surface, wherein a straight line overlaps with a central axis of the curved surface.

[0019] Further, the first picture is composed of a black and white uniform distribution grid picture, and the second picture and the third picture are pictures after the first picture is unfolded on a curved surface, wherein a straight line overlaps with a central axis of the curved surface.

[0020] Further, the first picture is composed of a black and white uniform distribution grid picture, and the second picture and the third picture are pictures after the first picture is unfolded on a curved surface, wherein a straight line overlaps with a central axis of the curved surface.

[0021] The beneficial effects of the application are:

[0022] 1、The application is characterized in that the optical parameter consistency detection chamber and the parallax consistency detection chamber are arranged, the camera is used to take pictures in the optical parameter consistency detection chamber and the parallax consistency detection chamber, and then whether the camera is qualified can be judged according to the pictures, so that the camera screening and consistency matching before the installation and correction of the multi-view camera are facilitated.

[0023] 2、The application is characterized in that the front qualified camera is installed in the video acquisition product according to requirements, and then the video acquisition product is sent into the multi-view parallax verification chamber for final verification, so that the quality of the product is improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, for those skilled in the art, other drawings can also be obtained without creative labor based on these drawings.

[0025] Figure 1 is a schematic diagram of the overall structure of the application.

[0026] The reference signs in the drawings are as follows:

[0027] 1, optical parameter consistency detection chamber; 2, camera; 3, first output track; 4, parallax consistency detection chamber; 5, curved track; 6, second output track; 7, first sorting controller; 8, multi-view parallax verification chamber; 9, first picture; 10, second picture; 11, third picture; 12, second sorting controller; 13, video acquisition product. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0029] Referring to Figure 1 , a multi-view video acquisition device production and correction device is shown, which comprises a camera 2 and a production track for conveying the camera 2. The production track is provided with three different closed detection chambers, i.e., an optical parameter consistency detection chamber 1, a parallax consistency detection chamber 4 and a multi-view parallax verification chamber 8.

[0030] The optical parameter consistency detection chamber 1 is provided with an optical parameter consistency analysis module, the parallax consistency detection chamber 4 is provided with a parallax consistency image analysis module, the multi-view parallax verification chamber 8 is provided with a multi-view parallax image verification analysis module, and the video acquisition product 13 is arranged on the production track between the parallax consistency detection chamber 4 and the multi-view parallax verification chamber 8, and the camera 2 is installed on the video acquisition product 13.

[0031] The inner cavity top of the optical parameter consistency detection chamber 1 is provided with the first picture 9, the camera 2 takes two pictures of the first picture 9 in the optical parameter consistency detection chamber 1, one is flash shooting and the other is normal shooting, and the two batches of pictures are transmitted to the optical parameter consistency analysis module for analysis and verification.

[0032] The inner cavity top of the parallax consistency detection chamber 4 is provided with the second picture 10, the production track in the parallax consistency detection chamber 4 is a curved track 5, the camera 2 takes three pictures of the second picture 10 in the parallax consistency detection chamber 4, one is flash shooting, one is normal shooting, and one is single-side light shooting. Three batches of pictures are transmitted to the parallax consistency image analysis module for analysis and verification.

[0033] The inner cavity top of the multi-view parallax verification chamber 8 is provided with the third picture 11, and the video acquisition product 13 installed with the camera 2 takes three pictures of the third picture 11 in the multi-view parallax verification chamber 8, one is flash shooting, one is normal shooting, and one is single-side light shooting. Three batches of pictures are transmitted to the multi-view parallax image verification analysis module for analysis and verification.

[0034] The first picture 9 is composed of a grid picture with uniform black and white distribution, and the second picture 10 and the third picture 11 are pictures of the first picture 9 expanded on a curved surface, wherein a straight line overlaps the central axis of the curved surface.

[0035] The rear side of the optical parameter consistency detection chamber 1 and the production track are provided with the first output track 3, and the first sorting controller 7 is arranged between the production track and the first output track 3; when the picture taken by a certain camera 2 has deviation, the first sorting controller 7 is controlled to send the problematic camera 2 to the first output track 3.

[0036] The rear side of the parallax consistency detection chamber 4 is provided with the second output track 6, and the second sorting controller 12 is arranged between the production track and the second output track 6; when the picture taken by a certain camera 2 has deviation, the second sorting controller 12 is controlled to send the problematic camera 2 to the second output track 6.

[0037] The camera 2 after passing through the parallax consistency detection chamber 4, through artificial appearance observation, determines that the rear is manually installed on the video acquisition product 13, and is sent to the multi-view parallax verification chamber 8 through the production track, and the third picture 11 is photographed three times. Once is flash shooting, once is normal shooting, and once is one-side light shooting. Three batches of photos are transmitted to the multi-view parallax image verification analysis module, and the verification is successful, which is a qualified product, and the verification is unsuccessful, which is an unqualified product.

[0038] The curvature of the curved track 5 can be adjusted, and the adjusted curvature should be consistent with the curvature in the video acquisition product 13 to be produced.

[0039] A multi-view video acquisition device production and correction method is executed by the above-mentioned device, comprising the following steps:

[0040] S1, place the camera 2 on the production track, move the camera 2 into the optical parameter consistency detection chamber 1, and take two pictures of the first picture 9 through the camera 2. When the photographed photos have deviation, the unqualified camera 2 is sent to the first output track 3 through the first sorting controller 7, and the qualified camera 2 continues to be transported along the production track;

[0041] S2, transport the qualified camera 2 in step S1 into the parallax consistency detection chamber 4, take three pictures of the second picture 10 when the camera 2 passes through the concave part of the curved track 5, and when the photographed photos have deviation, the unqualified camera 2 is sent to the second output track 6 through the second sorting controller 12, and the qualified camera 2 continues to be transported along the production track;

[0042] S3, install the qualified camera 2 in step S2 on the video acquisition product 13, then transport the video acquisition product 13 into the multi-view parallax verification chamber 8, and take three pictures of the third picture 11 through the camera 2. The video acquisition product 13 with normal photos is a qualified product.

[0043] The two pictures of the first picture 9 in S1 are flash shooting and normal shooting, respectively, and two batches of photos are transmitted to the optical parameter consistency analysis module for analysis.

[0044] The three pictures of the second picture 10 in S2 are divided into flash shooting, normal shooting and one-side light shooting, and three batches of photos are transmitted to the parallax consistency image analysis module for analysis.

[0045] The three pictures of the third picture 11 in S3 are divided into flash shooting, normal shooting and one-side light shooting, and three batches of photos are transmitted to the multi-view parallax image verification analysis module for verification.

[0046] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A production and calibration device for a multi-view video acquisition device, comprising a camera (2) and a production track for transporting the camera (2), characterized in that, The production track is equipped with an optical parameter consistency testing room (1), a parallax consistency testing room (4), and a multi-view parallax verification room (8). The optical parameter consistency testing chamber (1) is equipped with an optical parameter consistency analysis module, the parallax consistency testing chamber (4) is equipped with a parallax consistency image analysis module, and the multi-view parallax verification chamber (8) is equipped with a multi-view parallax image verification analysis module. A video acquisition product (13) is installed on the production track between the parallax consistency testing chamber (4) and the multi-view parallax verification chamber (8). The video acquisition product (13) is used to install a camera (2) that has passed the tests of the optical parameter consistency testing chamber (1) and the parallax consistency testing chamber (4), so that the video acquisition product (13) with the qualified camera (2) is transported to the multi-view parallax verification chamber (8) for testing. The top of the inner cavity of the optical parameter consistency testing chamber (1) is provided with a first image (9), the top of the inner cavity of the parallax consistency testing chamber (4) is provided with a second image (10), and the top of the inner cavity of the multi-view parallax verification chamber (8) is provided with a third image (11). The first image (9) is composed of a grid image with uniform black and white distribution. The second image (10) and the third image (11) are images of the first image (9) unfolded on a curved surface, in which a straight line overlaps with the central axis of the curved surface.

2. The multi-view video acquisition device production and calibration device according to claim 1, characterized in that, The camera (2) takes two pictures of the first image (9) in the optical parameter consistency testing chamber (1).

3. The multi-view video acquisition device production and calibration device according to claim 2, characterized in that, The production track inside the parallax consistency testing chamber (4) is a curved track (5), and the camera (2) takes three pictures of the second image (10) inside the parallax consistency testing chamber (4).

4. The multi-view video acquisition device production and calibration device according to claim 3, characterized in that, The video capture product (13) equipped with camera (2) takes three pictures of the third image (11) in the multi-view parallax verification chamber (8).

5. The multi-view video acquisition device production and calibration device according to claim 4, characterized in that, The optical parameter consistency detection chamber (1) is located behind the production track and a first output track (3) is provided on the production track. A first sorting controller (7) is provided between the production track and the first output track (3). A second output track (6) is provided on the rear side of the parallax consistency detection chamber (4) and on the production track, and a second sorting controller (12) is provided between the production track and the second output track (6).

6. A method for manufacturing and calibrating a multi-view video acquisition device, performed by the multi-view video acquisition device manufacturing and calibration device as described in claim 5, characterized in that, Includes the following steps: S1. Place the camera (2) on the production track. Move the camera (2) into the optical parameter consistency detection chamber (1). Take two pictures of the first image (9) through the camera (2). When there is a deviation in the picture, send the unqualified camera (2) to the first output track (3) through the first sorting controller (7). The qualified camera (2) continues to be transported along the production track. S2. The qualified camera (2) in step S1 is transported to the parallax consistency detection chamber (4). When the camera (2) passes through the concave part of the curved track (5), it takes three pictures of the second image (10). When the picture taken has a deviation, the unqualified camera (2) is sent to the second output track (6) through the second sorting controller (12). The qualified camera (2) continues to be transported along the production track. S3. Install the qualified camera (2) from step S2 onto the video acquisition product (13), and then transport the video acquisition product (13) with the camera (2) installed to the multi-view parallax verification room (8). Take three pictures of the third picture (11) through the camera (2). If the picture is normal, it is a qualified product.

7. The method for manufacturing and calibrating a multi-view video acquisition device according to claim 6, characterized in that, In S1, the first image (9) is taken twice: once with a flash and once with constant light. The two batches of photos are then transmitted to the optical parameter consistency analysis module for analysis.

8. The method for manufacturing and calibrating a multi-view video acquisition device according to claim 6, characterized in that, In S2, the second image (10) is taken three times: with flash, with constant light, and with one side of the light on. The three batches of photos are then transmitted to the parallax consistency image analysis module for analysis.

9. The method for manufacturing and calibrating a multi-view video acquisition device according to claim 6, characterized in that, In S3, the third image (11) is taken three times: with flash, with constant light, and with one side of the light on. The three batches of photos are transmitted to the multi-view parallax image verification and analysis module for verification.

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