VR (Virtual Reality) panoramic video layout method and device and VR panoramic video presentation method and system capable of saving bandwidth

A panoramic video and video technology, applied in the field of virtual reality, can solve problems such as occupying a large network bandwidth

Active Publication Date: 2016-08-24
北京金字塔虚拟现实科技有限公司
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Problems solved by technology

The projection method of the panoramic video layout in the prior art has the defect of occupying a large network bandwidth

Method used

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  • VR (Virtual Reality) panoramic video layout method and device and VR panoramic video presentation method and system capable of saving bandwidth
  • VR (Virtual Reality) panoramic video layout method and device and VR panoramic video presentation method and system capable of saving bandwidth
  • VR (Virtual Reality) panoramic video layout method and device and VR panoramic video presentation method and system capable of saving bandwidth

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Embodiment approach

[0072] According to an embodiment of the VR panoramic video presentation method of the present invention, the VR panoramic video layout processing device is further included, and the VR panoramic video layout is realized by writing ffmpeg plug-ins.

[0073] According to an embodiment of the VR panoramic video presentation method of the present invention, it further includes acquiring VR device sensor information through the VR panoramic video player, and the VR device sensor information is used to acquire user viewing angle information.

[0074] According to one embodiment of the VR panoramic video presentation method of the present invention, it also includes implementing video transmission through at least one of http, rtmp and rtsp protocols.

[0075] According to an embodiment of the present invention, the VR panoramic video layout device processes the spherical panoramic video into a regular video plane, and after being processed by the VR panoramic video layout device, ea...

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Abstract

The invention provides a VR (Virtual Reality) panoramic video layout method, device and system. The method comprises the following steps: projecting a VR panoramic spherical video onto a pyramid surface which takes a sphere as an inscribed sphere; expanding the pyramid surface into a planar graph to obtain a video plane of pyramid projection; and turning the video plane to a regular shape through deformation to obtain a regular video plane. The VR panoramic video layout system comprises a VR panoramic video layout processing device, a VR panoramic video streaming media server and a VR panoramic video player, wherein the VR panoramic video player is used for playing video data from the VR panoramic video streaming media server according to a viewing angle of a user. Through adoption of the VR panoramic video layout method, device and system provided by the invention, a pyramid-based projection way is provided. In the pyramid-based projection way, the surface area of a projected video is reduced by 80 percent compared with an equirectangular projection way; the bandwidth of VR panoramic video transmission is reduced by 80 percent compared with an existing VR video technology; and a panoramic video can be played according to the viewing angle of the user.

Description

technical field [0001] The present invention relates to the field of virtual reality technology, in particular to a VR (Virtual Reality, ie, virtual reality, VR for short) panoramic video layout method, device, presentation method, and system. Background technique [0002] At present, VR panoramic videos on the market are all equirectangular layouts. The principle is earth mapping. The spherical longitude and latitude coordinates are directly projected into a grid of horizontal and vertical coordinates. The width of this grid is about twice the height. So from the equator to the poles, the lateral stretching intensifies, with the north and south poles being stretched into a flattened grid across the upper and lower edges of the figure. The disadvantage of this projection method is that the generated video files are relatively large and occupy a large network bandwidth during transmission. The projection mode of the panoramic video layout in the prior art has the defect of o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N9/31G03B37/04G06F3/01
CPCH04N9/3179G03B37/04G06F3/011
Inventor 刘振兆
Owner 北京金字塔虚拟现实科技有限公司
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