CN212343952U - Three-dimensional panoramic video acquisition system is swept in week - Google Patents
Three-dimensional panoramic video acquisition system is swept in week Download PDFInfo
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- CN212343952U CN212343952U CN202021198706.0U CN202021198706U CN212343952U CN 212343952 U CN212343952 U CN 212343952U CN 202021198706 U CN202021198706 U CN 202021198706U CN 212343952 U CN212343952 U CN 212343952U
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- 230000008901 benefit Effects 0.000 abstract description 3
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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 utility model discloses a three-dimensional panorama video acquisition system is swept in week, including image acquisition device, image acquisition device is including two line scanning cameras, two that are used for acquireing three-dimensional panoramic picture line scanning camera interval sets for distance and parallel arrangement. The utility model discloses a three-dimensional panoramic video collection system is swept in week has advantages such as simple and practical, the calculated amount is little and video information quality height.
Description
Technical Field
The utility model relates to an image acquisition technical field especially relates to a three-dimensional panorama video acquisition system is swept in week.
Background
With the development of artificial intelligence and 5G technology, VR technology has been greatly developed and widely used in recent years. However, the current VR technology has a large gap from live 5G real 3D panoramic VR live broadcasting. At present, VR technologies at home and abroad widely adopt a multi-camera system, the scheme of the system is utilized to make VR videos and calculate optical flows to perform seamless splicing and three-dimensional rendering, and real-time synthesis and live broadcast cannot be achieved at present due to huge calculation amount of the optical flows and large estimation calculation amount of depth, and most of the VR technologies adopt post-synthesis to make video contents. For example, the Jump VR camera of Google requires 75 seconds of processing time per frame to add a new piece of stereo VR content. Therefore, at present, VR live broadcasting is limited to non-stereoscopic two-dimensional panoramic content and lacks three-dimensional information. Most of videos formed by non-live broadcast 3D/VR on the market at present need to be strictly calibrated on site in advance, and in addition, the formed videos can be broken for nearby, transparent and highly reflective objects in a scene, so that the experience effect is greatly influenced.
Because the front-end detection equipment cannot directly and quickly adopt sufficient three-dimensional information or the acquired three-dimensional information is excessively redundant, the lacking or redundant three-dimensional information needs to be continuously calculated, processed and perfected at the later stage, and the output time delay of the image is very long.
Therefore, how to directly and quickly acquire enough three-dimensional information and quickly complete the transmission of the three-dimensional information in real time becomes an urgent problem to be solved.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome the not enough of prior art, provide a simple and practical, the calculation volume is little and the high week of video information quality sweeps three-dimensional panoramic video collection system.
In order to solve the technical problem, the utility model provides a technical scheme does:
the utility model provides a three-dimensional panorama video acquisition system is swept in week, includes image acquisition device, image acquisition device is including being used for acquireing three-dimensional panoramic image's two line scanning cameras, two line scanning cameras interval set distance and parallel arrangement.
As a further improvement of the above technical solution:
the peripheral scanning stereoscopic panoramic video acquisition system further comprises a power rotating assembly, the image acquisition device is arranged on the power rotating assembly, and the power rotating assembly rotates to acquire stereoscopic panoramic images around the power rotating assembly by supporting the image acquisition device.
The two 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 line scanning camera is a TDI line scanning camera.
The image acquisition device 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 top surface of the power rotating assembly is also provided with a balancing weight, and the position of the balancing weight on the top surface is adjusted to be the center of gravity of the equivalent whole of the balancing weight and the image acquisition device and is positioned on the rotating shaft of the power rotating assembly.
The peripheral scanning three-dimensional panoramic video acquisition system also comprises an image transmission device and an image processing device, wherein the image transmission device transmits the three-dimensional panoramic image acquired by the image acquisition device to the image processing device for processing; the image transmission device comprises a photoelectric conversion part and a photoelectric slip ring, wherein the photoelectric conversion part is used for converting an electric signal of the stereoscopic panoramic image acquired by the image acquisition device into an optical signal, and the photoelectric slip ring is connected between the photoelectric conversion part and the image processing device and is used for transmitting the optical signal.
The photoelectric conversion part realizes synchronous acquisition of two paths of video signals of the two line scanning cameras through the same clock which is arranged in the photoelectric conversion part aiming at the two line scanning cameras, converts the obtained two paths of parallel and synchronous video streams into optical signals to be transmitted to the photoelectric slip ring, and the photoelectric slip ring transmits the optical signals to the data processing assembly to be analyzed to obtain the final three-dimensional panoramic video.
The photoelectric conversion part is arranged at the top of the power rotating assembly, and 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 communicated with the photoelectric conversion part supported by the power rotating assembly and synchronously rotates with the power rotating assembly, and the other end of the slip ring transmission rod is connected with the rotor end and drives the rotor end to rotate; and the stator end is matched with the rotor end and communicated with the image processing device.
The power rotating assembly further comprises a motor, and a slip ring transmission rod of the photoelectric slip ring penetrates through the hollow part of the motor.
Compared with the prior art, the utility model has the advantages of:
the utility model discloses a three-dimensional panorama video acquisition system is swept in week, including image acquisition device, image acquisition device sets for distance and parallel arrangement including two line scan cameras that are used for acquireing three-dimensional panoramic picture, two line scan camera intervals. Compared with a multi-camera imaging system, the scanning shooting mode of the line scanning camera does not need seamless splicing and three-dimensional rendering of shot images of a plurality of cameras, so that the steps of optical flow calculation and depth estimation 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. And a pair of line scanning cameras are arranged at intervals to shoot to obtain a stereoscopic panoramic image, and when the line scanning cameras rotate at a high speed, real stereoscopic data can be obtained by completely simulating a human binocular vision imaging system and a human peripheral scanning observation mode, so that three-dimensional information viewed and felt by human eyes is achieved, and therefore, the image generation mode is high in degree of reality, small in calculated amount and rapid in processing, the requirement of stereoscopic panoramic live broadcast can be met, and popularization of stereoscopic panoramic live broadcast is facilitated.
Drawings
Fig. 1 is an external structure view of the peripheral scanning stereoscopic panoramic video capture system of the present invention;
fig. 2 is an internal structure diagram of the peripheral scanning stereoscopic panoramic video acquisition system of the present invention;
fig. 3 is a schematic position diagram of a line scanning camera in the peripheral scanning stereoscopic panoramic video capture system of the present invention.
Illustration of the drawings: 1. a line scanning camera; 2. a turntable; 3. an adjustment plate; 4. a balancing weight; 5. a photoelectric conversion element; 6. a photoelectric slip ring; 61. a slip ring drive link; 7. an electric motor.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully and specifically with reference to the accompanying drawings and preferred embodiments, but the scope of the present invention is not limited to the following specific embodiments.
Example (b):
as shown in fig. 1 and fig. 2, the system for acquiring a panoramic stereoscopic panoramic video by circumferential scanning according to the present embodiment includes an image acquisition device, the image acquisition device includes two line scanning cameras 1 for acquiring a stereoscopic panoramic image, and the two line scanning cameras 1 are spaced apart by a set distance and arranged in parallel. Compared with a multi-camera imaging system, the scanning shooting mode of the line scanning camera 1 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. And the stereoscopic panoramic image is shot by the mode that the pair of line scanning cameras 1 are arranged at intervals, real stereoscopic data can be obtained by completely simulating a human binocular vision imaging system and a human peripheral scanning observation mode when the line scanning cameras 1 rotate at a high speed, and the three-dimensional information of human eye watching feeling is achieved, so that the image generation mode has high degree of reality, small calculated amount and quick processing, the requirement of stereoscopic panoramic live broadcast can be met, and the popularization of stereoscopic panoramic live broadcast is facilitated.
In this embodiment, the stereoscopic panoramic video collecting system is swept to week still includes power rotating assembly, and power rotating assembly includes revolving stage 2, and image acquisition device arranges on revolving stage 2, and revolving stage 2 is rotatory in order to acquire the stereoscopic panoramic image around revolving stage 2 through holding image acquisition device. As shown in fig. 3, the two line scanning cameras 1 are symmetrically arranged along the rotation axis of the turntable 2 to accurately simulate the position relationship between two eyes and the rotation axis of the head during the rotation of a human, and the connection line of the two line scanning cameras 1 is parallel to the top surface of the turntable 2, so that the problems of skew, vibration and the like of the image obtained by rotation shooting are prevented. The rotating speed of the turntable 2 is matched with the line scanning camera 1, so that the line scanning camera 1 performs multiple integration on a column of scanning units to obtain multiple groups of data.
In this embodiment, the line scanning camera 1 is a TDI line scanning camera, and the actual output line data of the camera is the result of enhancing the transfer and superposition among multiple lines in the TDI line scanning camera, which requires that the rotation speed is matched with the output frequency of each line in the TDI line scanning camera, otherwise, the transfer and superposition among multiple lines may cause image blurring. In order to enhance the image without blurring, it is proposed here to achieve this by tightly controlling the speed of the turntable 2 and the output frequency per line of the TDI line scan camera using a closed speed loop. Meanwhile, because a strict speed closed loop is adopted, the speed fluctuation can cause the deviation of the image starting position after long-time accumulation, so that the image position is ensured not to generate drift by outputting the output of a synchronous image column through the position of an absolute encoder. It should be noted that the manner of adapting the moving speed to the integration speed of the TDI line scan camera is a common usage manner of the TDI line scan camera.
In this embodiment, the image capturing device further includes an adjusting plate 3, the two line scanning cameras 1 are fixed on the adjusting plate 3, the adjusting plate 3 is hinged to the top surface of the turntable 2 through one side, and an included angle between the adjusting plate 3 and the top surface of the turntable 2 is adjusted through a fastener arranged on the side opposite to the hinged side. 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 3, and the three-dimensional panoramic image is suitable for shooting scenes with different vision center heights.
In this embodiment, still be equipped with balancing weight 4 on the top surface of revolving stage 2, balancing weight 4 position adjustment on the top surface sets up to balancing weight 4 and image acquisition device's the holistic focus of equivalence is located the rotation axis of revolving stage 2, and this kind of mode of setting can effectively eliminate because of the unstable scheduling problem of line scanning camera 1 in the rotation process that the barycentric skew caused, guarantees image quality. In this embodiment, the turntable 2 is further provided with a top cover covering the outside of the image acquisition device, and a transparent window is arranged on the top cover corresponding to the lens position of the line scanning camera 1, so that the image acquisition device is prevented from physical damage, and the service life of each device is prolonged.
In this embodiment, the panoramic stereoscopic panoramic video acquisition system further includes an image transmission device and an image processing device, wherein the image transmission device transmits the stereoscopic panoramic image acquired by the image acquisition device to the image processing device for processing; the image transmission device includes a photoelectric conversion element 5 for converting an electric signal of the stereoscopic panorama image acquired by the image acquisition device into an optical signal, and a photoelectric slip ring 6 for transmitting the optical signal connected between the photoelectric conversion element 5 and the image processing device. This kind of earlier signal of telecommunication conversion light signal of embodiment, the mode of transmission is carried out to rethread photoelectricity sliding ring 6, 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 6 belongs to contactless connection moreover, 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 volume, 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-flux stereoscopic panoramic video exceeding the optical fiber transmission bandwidth of the optoelectronic slip ring 6, real-time encoding and decoding are performed by the optoelectronic conversion device 5, specifically, when it is detected that the bandwidth of the video is greater than the transmission bandwidth, RGB signals are encoded into BAYER data, packaged into optical fiber for fast transmission, transmitted to the image processing device, then RGB decoding is performed, and 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, two line scanning cameras 1 respectively sweep a to-be-swept area to acquire two paths of video data, a photoelectric conversion part 5 respectively frames the two paths of video data to obtain two paths of video streams, and the two paths of video streams are synchronously processed to obtain two paths of parallel and synchronous video streams; two paths of parallel and synchronous video streams are converted into one path of serial signals by adopting a serial coding mode, the serial signals are converted into optical signals, the optical signals are transmitted through the photoelectric slip ring 6, the image processing device receives the optical signals, the optical signals are converted into electric signals, and the electric signals are analyzed to obtain the final panoramic video.
In this embodiment, the photoelectric conversion element 5 is provided with two video input ports respectively connected to the two line scanning cameras 1, and the video signals entering the photoelectric conversion element 5 share the same clock of the photoelectric conversion element 5, so as to achieve the purpose of synchronous acquisition.
In this embodiment, the photoelectric conversion element 5 is disposed on the top of the turntable 2, and the photoelectric slip ring 6 includes a slip ring transmission rod 61, a stator end and a rotor end; one end of the slip ring transmission rod 61 is communicated with the photoelectric conversion part 5 supported by the rotary table 2 and synchronously rotates with the rotary table 2, and the other end is connected with the rotor end and drives the rotor end to rotate; the stator end is matched with the rotor end and communicated with the image processing device.
In this embodiment, the power rotating assembly further includes a motor 7, and the motor 7 is disposed at the bottom of the turntable 2 and drives the turntable 2 to rotate along the rotating shaft; the slip ring transmission rod 61 of the photoelectric slip ring 6 penetrates through the hollow part of the motor 7.
As a preferred embodiment of the present embodiment, the motor 7, the image processing device and the photoelectric slip ring 6 are externally provided with a housing 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 image processing device is connected with external equipment through the three connectors to realize 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 7 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 7. 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 6, so that the data processing assembly and the photoelectric slip ring can be protected from physical damage from the outside.
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.
The above description is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. For those skilled in the art, the modifications and changes obtained without departing from the technical idea of the present invention should be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides a three-dimensional panorama video acquisition system is swept in week, includes image acquisition device, its characterized in that: the image acquisition device comprises two line scanning cameras (1) used for acquiring a three-dimensional panoramic image, wherein the two line scanning cameras (1) are arranged in parallel at a set distance.
2. The circumferentially swept stereoscopic panoramic video acquisition system of claim 1, wherein: still include power rotating assembly, the image acquisition device arranges on power rotating assembly, power rotating assembly is rotatory in order to acquire the three-dimensional panoramic image around the power rotating assembly through holding image acquisition device.
3. The circumferentially swept stereoscopic panoramic video acquisition system of claim 2, wherein: the two line scanning cameras (1) are symmetrically arranged along the rotating shaft of the power rotating assembly, and the connecting line of the two line scanning cameras (1) is parallel to the top surface of the power rotating assembly.
4. The circumferentially swept stereoscopic panoramic video acquisition system of claim 2, wherein: the image acquisition device further comprises an adjusting plate (3), the two line scanning cameras (1) are fixed on the adjusting plate (3), the adjusting plate (3) is hinged to the top surface of the power rotating assembly through one side edge, and an included angle between the adjusting plate (3) 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.
5. The circumferentially swept stereoscopic panoramic video acquisition system of claim 2, wherein: still be equipped with balancing weight (4) on power rotating assembly's the top surface, balancing weight (4) are in position adjustment on the top surface sets up to balancing weight (4) and image acquisition device's the holistic focus of equivalence is located power rotating assembly's rotation axis.
6. The circumferentially swept stereoscopic panoramic video acquisition system of claim 1, wherein: the line scanning camera (1) is a TDI line scanning camera.
7. The circumferentially swept stereoscopic panoramic video acquisition system of claim 2, wherein: the stereoscopic panoramic image acquisition device is used for acquiring a stereoscopic panoramic image; the image transmission device comprises a photoelectric conversion part (5) for converting the electric signal of the stereoscopic panoramic image acquired by the image acquisition device into an optical signal, and a photoelectric slip ring (6) connected between the photoelectric conversion part (5) and the image processing device and used for transmitting the optical signal.
8. The circumferentially swept stereoscopic panoramic video acquisition system of claim 7, wherein: the photoelectric conversion part (5) realizes synchronous acquisition of two paths of video signals of the two line scanning cameras (1) through the same clock which is arranged in the photoelectric conversion part for the two line scanning cameras (1), converts the obtained two paths of parallel and synchronous video streams into optical signals to be transmitted to the photoelectric slip ring (6), and the photoelectric slip ring (6) transmits the optical signals to the data processing assembly to be analyzed to obtain the final three-dimensional panoramic video.
9. The circumferentially swept stereoscopic panoramic video acquisition system of claim 7, wherein: the photoelectric conversion piece (5) is arranged at the top of the power rotating assembly, and the photoelectric slip ring (6) comprises a slip ring transmission rod (61), a stator end and a rotor end; one end of the slip ring transmission rod (61) is communicated with a photoelectric conversion part (5) supported by the power rotating component and synchronously rotates with the power rotating component, and the other end of the slip ring transmission rod is connected with the end of the rotor and drives the rotor to rotate; and the stator end is matched with the rotor end and communicated with the image processing device.
10. The circumferentially swept stereoscopic panoramic video acquisition system of claim 9, wherein: the power rotating assembly further comprises a motor (7), and a slip ring transmission rod (61) of the photoelectric slip ring (6) penetrates through the hollow part of the motor (7).
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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 |
| CN2020103260383 | 2020-04-23 | ||
| CN2020206238423 | 2020-04-23 | ||
| CN202020623842 | 2020-04-23 |
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| CN202010592430.2A Pending CN111836032A (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 |
| 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 |
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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 |
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| CN111836032A (en) * | 2020-04-23 | 2020-10-27 | 湖南傲英创视信息科技有限公司 | Three-dimensional panoramic video acquisition system is swept in week |
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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 |
| CN106101503A (en) * | 2016-07-18 | 2016-11-09 | 优势拓展（北京）科技有限公司 | Real time panoramic Living Network video camera and system and method |
| WO2018048185A1 (en) * | 2016-09-06 | 2018-03-15 | 주식회사 에스360브이알 | Method for obtaining stereoscopic panoramic image and method for playing same and stereoscopic panoramic camera |
| 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 |
| CN111836032A (en) * | 2020-04-23 | 2020-10-27 | 湖南傲英创视信息科技有限公司 | Three-dimensional panoramic video acquisition system is swept in week |
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| CN111836032A (en) * | 2020-04-23 | 2020-10-27 | 湖南傲英创视信息科技有限公司 | Three-dimensional panoramic video acquisition system is swept in week |
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| CN212343953U (en) | 2021-01-12 |
| CN111818320A (en) | 2020-10-23 |
| CN111836032A (en) | 2020-10-27 |
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