CN111818320A - Week-sweeping stereoscopic panoramic video acquisition system for VR live broadcast - Google Patents
Week-sweeping stereoscopic panoramic video acquisition system for VR live broadcast Download PDFInfo
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- CN111818320A CN111818320A CN202010591361.3A CN202010591361A CN111818320A CN 111818320 A CN111818320 A CN 111818320A CN 202010591361 A CN202010591361 A CN 202010591361A CN 111818320 A CN111818320 A CN 111818320A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/20—Image signal generators
- H04N13/204—Image signal generators using stereoscopic image cameras
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Abstract
The invention discloses a VR live broadcast-oriented circumferential scanning three-dimensional panoramic video acquisition system which comprises an image acquisition assembly, a data transmission assembly and a data processing assembly, wherein the image acquisition assembly comprises an acquisition device and a photoelectric acquisition board which is connected with the acquisition device and used for converting a video signal obtained by the acquisition device into an optical signal, and the data transmission assembly comprises a photoelectric slip ring which is connected between the photoelectric acquisition board and the data processing assembly and used for transmitting the optical signal. The VR live broadcast-oriented circumferentially-scanning stereoscopic panoramic video acquisition system has the advantages of simplicity, practicability, high transmission speed, low output time delay and the like.
Description
Technical Field
The invention relates to the technical field of image acquisition, in particular to a peripheral scanning three-dimensional panoramic video acquisition system for VR live broadcast.
Background
In the current video acquisition application, in order to make the obtained video clearer, the front-end detection equipment is required to acquire high-flux three-dimensional information data under enough visual angle scenes, and because the information quantity of the three-dimensional information is very large, the high-flux three-dimensional information data acquired by the front-end equipment cannot be transmitted timely and quickly at present, so that the output time delay of the image is very long.
Therefore, how to timely and quickly transmit high-flux three-dimensional information data acquired by front-end equipment becomes a problem which needs to be solved urgently.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a VR live-oriented peripheral scanning stereoscopic panoramic video acquisition system which is simple and practical, high in transmission speed and low in output time delay.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
the utility model provides a three-dimensional panorama video collection system is swept to week towards VR live, includes image acquisition subassembly, data transmission subassembly and data processing subassembly, the image acquisition subassembly includes collection system and the photoelectric acquisition board that is connected with collection system, converts the video signal that collection system obtained into light signal, the data transmission subassembly is including connecting the photoelectric slip ring who is used for transmitting light signal between photoelectric acquisition board and data processing subassembly.
As a further improvement of the above technical solution:
three-dimensional panorama video collection system is swept to week towards the live VR still includes power rotating assembly, collection device is line scanning camera, and the photoelectric acquisition board is connected line scanning camera, power rotating assembly holds photoelectric acquisition board and line scanning camera and rotates along the rotation axis.
The photoelectric slip ring comprises a slip ring transmission rod, a stator end and a rotor end; one end of the slip ring transmission rod is connected with the photoelectric acquisition plate supported by the power rotating assembly and synchronously rotates with the photoelectric acquisition plate, and the other end of the slip ring transmission rod is connected with the rotor end and drives the rotor end to rotate; one end of the stator end is matched with the rotor end, and the other end of the stator end is connected with the data processing assembly.
The power rotating assembly comprises a motor, and a slip ring transmission rod penetrates through the hollow part of the motor and is connected with a photoelectric acquisition board supported by the power rotating assembly.
The motor is a high-speed motor with the rotating speed not lower than 20 r/s.
The line scanning cameras are symmetrically arranged along the rotating shaft of the power rotating assembly, and the connecting line of the two line scanning cameras is parallel to the top surface of the power rotating assembly.
The photoelectric acquisition board realizes the synchronous acquisition of two paths of video signals of two line scanning cameras through the same clock which is arranged for the two line scanning cameras inside, converts the obtained two paths of parallel and synchronous video streams into optical signals and transmits the optical signals to the photoelectric slip ring, and the photoelectric slip ring transmits the optical signals to the data processing assembly to analyze and obtain the final panoramic video.
The image acquisition assembly further comprises an adjusting plate, the two line scanning cameras are fixed on the adjusting plate, the adjusting plate is hinged to the top surface of the power rotating assembly through one side edge, and an included angle between the adjusting plate and the top surface of the power rotating assembly is adjusted through a fastener arranged on the side edge opposite to the hinged side edge.
The image acquisition assembly further comprises a balancing weight, and the gravity center of the balancing weight and the equivalent whole body of the line scanning camera are located on the rotating axis of the power rotating assembly.
VR live-oriented circumferential scanning stereoscopic panoramic video acquisition system further comprises a 5G communication module used for transmitting stereoscopic panoramic video data processed and completed by the data processing assembly to a live broadcast terminal.
Compared with the prior art, the invention has the advantages that:
the invention discloses a VR live broadcast-oriented peripheral scanning stereoscopic panoramic video acquisition system which comprises an image acquisition assembly, a data transmission assembly and a data processing assembly, wherein the image acquisition assembly comprises an acquisition device and a photoelectric acquisition board which is connected with the acquisition device and used for converting a video signal obtained by the acquisition device into an optical signal, and the data transmission assembly comprises a photoelectric slip ring which is connected between the photoelectric acquisition board and the data processing assembly and used for transmitting the optical signal. The electric signal is converted into the optical signal firstly, then the transmission is carried out through the photoelectric slip ring, compared with the traditional electric slip ring, the limitation of the service life and the transmission speed can not occur due to the materials, the process, the use environment and the like, therefore, the service life is prolonged, the transmission speed is obviously improved, in addition, the photoelectric slip ring belongs to non-contact connection, the speed can reach thousands of revolutions per minute, the high-flux three-dimensional information data can be suitable, the timely and quick transmission of the three-dimensional information with large information quantity can be realized, the time delay of image output is extremely short, and the real-time live broadcast of the three-dimensional panoramic video can be realized.
Drawings
Fig. 1 is an external structural view of a VR live broadcast oriented circumferentially swept stereoscopic panoramic video capture system of the present invention;
FIG. 2 is an internal structure diagram of a VR live-oriented circumferentially swept stereoscopic panoramic video capture system of the present invention;
fig. 3 is a schematic position diagram of a line scanning camera in the VR live broadcast-oriented circumferentially swept stereoscopic panoramic video capture system of the present invention.
Illustration of the drawings: 1. a photoelectric collecting plate; 2. a photoelectric slip ring; 21. a slip ring drive link; 3. a line scanning camera; 4. a turntable; 5. a motor; 6. an adjustment plate; 7. and a balancing weight.
Detailed Description
In order to facilitate an understanding of the invention, the invention will be described more fully and in detail below with reference to the accompanying drawings and preferred embodiments, but the scope of the invention is not limited to the specific embodiments below.
Example (b):
as shown in fig. 1 and fig. 2, the peripheral scanning stereoscopic panoramic video capture system facing VR live broadcasting of the present embodiment includes an image capture component, a data transmission component and a data processing component, where the image capture component includes a capture device and a photoelectric capture plate 1 connected to the capture device and converting a video signal obtained by the capture device into an optical signal, and the data transmission component includes a photoelectric slip ring 2 connected between the photoelectric capture plate 1 and the data processing component and used for transmitting the optical signal. This kind of earlier signal of telecommunication conversion light signal of embodiment, the mode of transmission is carried out to rethread photoelectricity sliding ring 2, compare traditional electric sliding ring, can not appear life and transmission speed's restriction because of reasons such as material, technology and service environment, consequently not only life extension, its transmission speed also will show and improve, photoelectricity sliding ring 2 belongs to contactless connection, speed can reach thousands of revolutions per minute, can be applicable to the three-dimensional stereoscopic information data of high flux, can realize carrying out timely and quick transmission to the great three-dimensional stereoscopic information of information quantity, consequently, the time delay of image output is extremely short, can realize the real-time live broadcast of three-dimensional panoramic video.
As a preferred embodiment of this embodiment, for a higher-throughput stereoscopic panoramic video that exceeds the optical fiber transmission bandwidth of the photoelectric slip ring 2, real-time encoding and decoding are performed through the photoelectric acquisition board 1, specifically, when it is detected that the bandwidth of the video is greater than the transmission bandwidth, RGB signals are encoded into BAYER data, the BAYER data are packed into an optical fiber for fast transmission, and the BAYER data are transmitted to the data processing component, then RGB decoding is performed, and the BAYER data are output to the subsequent module. Therefore, the flux of video data is greatly reduced, and the video data can be converted into optical fiber signals which are stably uploaded to a cloud terminal through a rear wired or wireless (4G, 5G) network to perform post-processing and live broadcasting service.
In this embodiment, direct three-dimensional panorama video collection system is swept to week of VR still includes power rotating assembly, and power rotating assembly includes revolving stage 4 and motor 5, and collection device is line scanning camera 3, and 1 connecting wire scanning camera 3 of photoelectric acquisition board, motor 5 drive revolving stage 4 hold photoelectric acquisition board 1 and line scanning camera 3 and rotate along the rotation axis. Compared with a multi-camera imaging system, the line scanning camera 3 as an image acquisition device does not need seamless splicing and three-dimensional rendering of shot images of a plurality of cameras, so that optical flow calculation and depth estimation steps with large calculation amount are omitted, and the time required by image processing is greatly shortened. And near, transparent and highly reflective objects in the scene can not be broken, so that the experience effect is not influenced.
In the embodiment, the photoelectric slip ring 2 comprises a slip ring transmission rod 21, a stator end and a rotor end; one end of the slip ring transmission rod 21 is connected with the photoelectric acquisition board 1 supported by the power rotating assembly and synchronously rotates with the photoelectric acquisition board, and the other end of the slip ring transmission rod is connected with the rotor end and drives the rotor end to rotate; one end of the stator end is matched with the rotor end, and the other end of the stator end is connected with the data processing assembly.
In this embodiment, the motor 5 is arranged below the turntable 4, the slip ring transmission rod 21 penetrates through the hollow part of the motor 5 and is connected with the photoelectric acquisition board 1 supported by the turntable 4, and the arrangement mode ensures that the rotation center is positioned at the integral center of the device, so that the rotation process is more stable, the space volume required by the device is reduced, and the arrangement is convenient.
In the embodiment, the motor 5 is a high-speed motor with the rotating speed not lower than 20r/s, and compared with a common motor in the market, the rotating speed of the motor can reach 20 circles, so that the frame frequency of the VR video can also reach 20hz, and the video quality is better.
As a preferred embodiment of the embodiment, the motor 5, the data processing assembly and the photoelectric slip ring 2 are externally provided with a shell and a supporting bottom, and the supporting bottom is provided with a motor coding cable joint, a motor power cable joint and an optical fiber transmission joint. The data processing assembly is connected with external equipment through the three connectors to achieve signal transmission, specifically, the coding line is connected with the coding cable connector, the power line is connected with the power cable connector, and the optical fiber is connected with the optical fiber transmission connector. The motor 5 in this embodiment is provided with a power line and a coding line, which are transmission paths of electric power and control signals required by the motor 5. The fiber optic connectors are fiber optic couplers and may be LC, FC or SC connectors, which are associated with interconnecting hardware interfaces. It should be noted that the present embodiment is only illustrated here by way of example, and is not particularly limited.
In the embodiment, the optical fiber transmission connector is connected with external terminal equipment, and the acquired information is sent to the external terminal equipment; the support bottom supports the components, so that the components can be flexibly unfolded without resistance to work, and the support bottom is arranged below the data processing assembly and the photoelectric slip ring 2, so that the data processing assembly and the photoelectric slip ring can be protected from physical damage from the outside.
In this embodiment, as shown in fig. 3, there are two line scanning cameras 3, the two line scanning cameras 3 are symmetrically arranged along the rotation axis of the turntable 4, and the connection line of the two line scanning cameras 3 is parallel to the top surface of the turntable 4. The pair of line scanning cameras 3 are arranged at intervals of two eye distances to shoot to obtain a three-dimensional panoramic image, real three-dimensional data can be obtained by completely simulating a human binocular vision imaging system and a human circumferential scanning observation mode during high-speed rotation, the three-dimensional information of human eye watching experience is achieved, the image generation mode is high in degree of reality, small in calculated amount and rapid in processing, the requirement of three-dimensional panoramic live broadcast can be met, and popularization of the three-dimensional panoramic live broadcast is facilitated. As a preferred embodiment of the present embodiment, when the two line scan cameras 3 are installed in parallel, the imaging centers and the rotation centers of the two line scan cameras may not be on the same straight line, so that the load pitch may be reduced, and the radial dimension of the load may be reduced.
In this embodiment, the two line scanning cameras 3 respectively treat the area of sweeping in week and sweep in order to gather two way video data, the synchronous collection of two way video signal of two line scanning cameras 3 is realized to the same clock that two line scanning cameras 3 set up through inside to photoelectric acquisition board 1 to adopt serial coding mode to convert two way parallel and synchronous video streams into one way serial signal, and convert serial signal into light signal and transmit to photoelectric slip ring 2, photoelectric slip ring 2 transmits light signal to data processing subassembly in order to resolve and obtain final panoramic video.
In this embodiment, the image capturing assembly further includes an adjusting plate 6, the two line scanning cameras 3 are fixed on the adjusting plate 6, the adjusting plate 6 is hinged to the top surface of the turntable 4 through one side edge, and an included angle between the adjusting plate 6 and the top surface of the turntable 4 is adjusted through a fastener arranged on the side edge opposite to the hinged side edge. Because different shooting scenes have different vision centers, the adjustment of the pitch angle in the three-dimensional panoramic image can be realized by adjusting the included angle of the adjusting plate 6, and the three-dimensional panoramic image is suitable for shooting scenes with different vision center heights.
In this embodiment, the image acquisition subassembly still includes balancing weight 7, and balancing weight 7 is located the rotation axis of revolving stage 4 with the holistic focus of the equivalent of line scanning camera 3, can effectively eliminate because of the rotatory in-process line scanning camera 3 unstability scheduling problem that the focus skew caused, guarantees image quality. In this embodiment, the turntable 4 is further provided with a top cover covering the outside of the image acquisition assembly, and a transparent window is arranged on the top cover corresponding to the lens position of the line scanning camera 3, so that the image acquisition assembly is prevented from physical damage, and the service life of each device is prolonged.
In this embodiment, this collection system still includes the 5G communication module that is used for transmitting the three-dimensional panoramic video data that data processing subassembly processing was accomplished to live terminal, and 5G communication module can realize quick, high-efficient and timely transmission, does benefit to the live of three-dimensional panoramic video.
As a general inventive concept, the present embodiment further provides an acquisition method applied to the VR live broadcast-oriented circumferentially swept stereoscopic panoramic video acquisition system, including the following steps:
the motor 5 is controlled to drive the line scanning camera 3 to rotate at a high speed so as to acquire a video signal of a region to be detected, and meanwhile, the motor 5 drives the photoelectric slip ring 2 to rotate through the slip ring transmission rod 21;
and controlling the photoelectric acquisition board 1 to acquire the video signal, converting the video signal into an electric signal, converting the electric signal into an optical signal, and transmitting the optical signal to the data processing assembly through the photoelectric slip ring 2.
The video signals of the two line scanning cameras 3 comprise two paths, and the first path of video signal and the second path of video signal share the same clock in the photoelectric acquisition board 1 to realize synchronous acquisition.
After synchronous acquisition, the video signals acquired synchronously are converted into optical signals by using a main means of optical fiber communication capacity expansion, such as a multiplexing technology (mainly, sometimes, time division multiplexing, wavelength division multiplexing and frequency division multiplexing), the optical signals are transmitted downwards by using one optical fiber (in this embodiment, the optical fiber in the photoelectric slip ring 2), finally, the optical signals are converted into the video signals on the data processing assembly by using a demultiplexing technology, and the video signals are reprocessed and then converted into the optical signals or the wireless signals (4G/5G) to be output to a display terminal.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-described embodiments. It should be apparent to those skilled in the art that modifications and variations can be made without departing from the technical spirit of the present invention.
Claims (10)
1. The utility model provides a three-dimensional panoramic video collection system is swept to week towards VR live, its characterized in that: the image acquisition assembly comprises an acquisition device and a photoelectric acquisition board (1) which is connected with the acquisition device and converts video signals obtained by the acquisition device into optical signals, and the data transmission assembly comprises a photoelectric slip ring (2) which is connected between the photoelectric acquisition board (1) and the data processing assembly and is used for transmitting the optical signals.
2. The VR live-view oriented circumferentially-swept stereoscopic panoramic video capture system of claim 1, wherein: the photoelectric scanning device is characterized by further comprising a power rotating assembly, the acquisition device is a line scanning camera (3), the photoelectric acquisition board (1) is connected with the line scanning camera (3), and the power rotating assembly supports the photoelectric acquisition board (1) and the line scanning camera (3) to rotate along a rotating shaft.
3. The VR live-view oriented circumferentially-swept stereoscopic panoramic video capture system of claim 2, wherein: the photoelectric slip ring (2) comprises a slip ring transmission rod (21), a stator end and a rotor end; one end of the slip ring transmission rod (21) is connected with the photoelectric acquisition plate (1) supported by the power rotating assembly and synchronously rotates with the photoelectric acquisition plate, and the other end of the slip ring transmission rod is connected with the rotor end and drives the rotor end to rotate; one end of the stator end is matched with the rotor end, and the other end of the stator end is connected with the data processing assembly.
4. The VR live-view-oriented circumferentially-swept stereoscopic panoramic video capture system of claim 3, wherein: the power rotating assembly comprises a motor (5), and a slip ring transmission rod (21) penetrates through the hollow part of the motor (5) and is connected with a photoelectric acquisition board (1) supported by the power rotating assembly.
5. The VR live-view-oriented circumferentially-swept stereoscopic panoramic video capture system of claim 4, wherein: the motor (5) is a high-speed motor with the rotating speed not lower than 20 r/s.
6. The VR live-view oriented circumferentially-swept stereoscopic panoramic video capture system of claim 2, wherein: the two line scanning cameras (3) are symmetrically arranged along the rotating shaft of the power rotating assembly, and the connecting line of the two line scanning cameras (3) is parallel to the top surface of the power rotating assembly.
7. The VR live-view-oriented circumferentially-swept stereoscopic panoramic video capture system of claim 6, wherein: the photoelectric acquisition board (1) realizes synchronous acquisition of two paths of video signals of the two line scanning cameras (3) through the same clock which is arranged for the two line scanning cameras (3) in the photoelectric acquisition board, converts the obtained two paths of parallel and synchronous video streams into optical signals to be transmitted to the photoelectric slip ring (2), and the photoelectric slip ring (2) transmits the optical signals to the data processing assembly to analyze and obtain the final three-dimensional panoramic video.
8. The VR live-view-oriented circumferentially-swept stereoscopic panoramic video capture system of claim 6, wherein: the image acquisition assembly further comprises an adjusting plate (6), the two line scanning cameras (3) are fixed on the adjusting plate (6), the adjusting plate (6) is hinged to the top surface of the power rotating assembly through one side edge, and an included angle between the adjusting plate (6) and the top surface of the power rotating assembly is adjusted through a fastener arranged on the side edge opposite to the hinged side edge.
9. The VR live-view-oriented circumferentially-swept stereoscopic panoramic video capture system of claim 6, wherein: the image acquisition assembly further comprises a balancing weight (7), and the gravity center of the equivalent whole of the balancing weight (7) and the line scanning camera (3) is positioned on the rotating axis of the power rotating assembly.
10. The VR live-view oriented circumferentially-swept stereoscopic panoramic video acquisition system of any one of claims 1-9, wherein: the system also comprises a 5G communication module used for transmitting the stereoscopic panoramic video data processed and completed by the data processing component to the live broadcast terminal.
Applications Claiming Priority (4)
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|---|---|---|---|
| CN202010326038.3A CN111405268A (en) | 2020-04-23 | 2020-04-23 | Circumferential scanning three-dimensional panoramic video acquisition system and acquisition method for VR live broadcast |
| CN202020623842 | 2020-04-23 | ||
| CN2020206238423 | 2020-04-23 | ||
| CN2020103260383 | 2020-04-23 |
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| CN111818320A true CN111818320A (en) | 2020-10-23 |
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| CN202010591361.3A Pending CN111818320A (en) | 2020-04-23 | 2020-06-24 | Week-sweeping stereoscopic panoramic video acquisition system for VR live broadcast |
| CN202021198706.0U Active CN212343952U (en) | 2020-04-23 | 2020-06-24 | Three-dimensional panoramic video acquisition system is swept in week |
| CN202021199815.4U Active CN212343953U (en) | 2020-04-23 | 2020-06-24 | Week-sweeping stereoscopic panoramic video acquisition system for VR live broadcast |
| CN202010592430.2A Pending CN111836032A (en) | 2020-04-23 | 2020-06-24 | Three-dimensional panoramic video acquisition system is swept in week |
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| CN202021198706.0U Active CN212343952U (en) | 2020-04-23 | 2020-06-24 | Three-dimensional panoramic video acquisition system is swept in week |
| CN202021199815.4U Active CN212343953U (en) | 2020-04-23 | 2020-06-24 | Week-sweeping stereoscopic panoramic video acquisition system for VR live broadcast |
| CN202010592430.2A Pending CN111836032A (en) | 2020-04-23 | 2020-06-24 | Three-dimensional panoramic video acquisition system is swept in week |
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| CN111818320A (en) * | 2020-04-23 | 2020-10-23 | 湖南傲英创视信息科技有限公司 | Week-sweeping stereoscopic panoramic video acquisition system for VR live broadcast |
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| MY152181A (en) * | 2007-08-07 | 2014-08-29 | Mimos Berhad | Apparatus and method for three dimensional panoramic image formation |
| KR101222104B1 (en) * | 2011-05-06 | 2013-01-15 | (주)지에스엠솔루션 | Method and Apparatus for Generating Omnidirectional 3D Image using Line Scan Camera |
| KR20170043120A (en) * | 2015-10-12 | 2017-04-21 | 대우조선해양 주식회사 | Integral motor of front slip ring type |
| CN108616731B (en) * | 2016-12-30 | 2020-11-17 | 艾迪普科技股份有限公司 | Real-time generation method for 360-degree VR panoramic image and video |
| CN110148080B (en) * | 2018-02-13 | 2023-03-21 | 上海杰图天下网络科技有限公司 | Spatial information acquisition device and spatial information acquisition method |
| CN110677195A (en) * | 2019-09-29 | 2020-01-10 | 凯迈（洛阳）测控有限公司 | Data transmission device suitable for airborne photoelectric pod |
| CN111818320A (en) * | 2020-04-23 | 2020-10-23 | 湖南傲英创视信息科技有限公司 | Week-sweeping stereoscopic panoramic video acquisition system for VR live broadcast |
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- 2020-06-24 CN CN202010591361.3A patent/CN111818320A/en active Pending
- 2020-06-24 CN CN202021198706.0U patent/CN212343952U/en active Active
- 2020-06-24 CN CN202021199815.4U patent/CN212343953U/en active Active
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| CN212343952U (en) | 2021-01-12 |
| CN111836032A (en) | 2020-10-27 |
| CN212343953U (en) | 2021-01-12 |
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