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Cloud VR data transmission method and system based on edge computing storage

A data transmission method and edge computing technology, applied in computing, image data processing, instruments, etc., can solve problems such as delay or black screen, affecting viewing experience, etc., and achieve the effect of avoiding network delay and image loss

Pending Publication Date: 2022-01-11
TONGJI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There is a lot of redundancy in the complete transmission of panoramic images, but only the transmission of images within the field of view will cause delays or black screens due to network delays and jitters, which will greatly affect the viewing experience

Method used

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  • Cloud VR data transmission method and system based on edge computing storage
  • Cloud VR data transmission method and system based on edge computing storage
  • Cloud VR data transmission method and system based on edge computing storage

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Embodiment 1

[0053] This embodiment provides a Cloud VR data transmission method based on edge computing and storage, which is used to transmit panorama image data to a client device. Corresponding version transmission; on the content preparation side, prepare a full-view code stream with uneven quality for each view, and use high-quality coding in the viewing area; use low-quality encoding in the non-viewing area. According to the user's current perspective and posture position, the corresponding perspective file is requested. When the angle of view of head rotation changes, request the angle file corresponding to the new angle of view.

[0054] The method specifically includes the following steps:

[0055] S1: Use the quadrangular pyramid projection method to map and calculate the panorama, and divide each panorama into multiple video versions with different field of view according to the viewpoint projection for storage;

[0056] Using the quadrangular pyramid projection method to map...

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Abstract

The invention relates to a Cloud VR data transmission method and system based on edge computing storage, which are used for transmitting image data of a panorama to user side equipment, and the method comprises the following steps: carrying out mapping calculation on the panorama by adopting a rectangular pyramid projection mode, dividing each panorama into a plurality of video versions with different field angles according to viewpoint projection, and storing the video versions; obtaining and dynamically predicting three-dimensional motion data of user side equipment and calculating user view angle information; and selecting a video version of a corresponding view field angle according to the user view angle information, performing pyramid mapping operation on the video version to obtain stereo image data, calculating a viewpoint position movement vector corresponding to view angle switching, and transmitting the stereo image data to the user side equipment. Compared with the prior art, the invention has the advantages that the required bandwidth can be reduced by more than 60%, the watching quality in the visual field range is lossless, image lag and network caused by network delay are avoided, image missing caused by network jitter is avoided, and the like.

Description

technical field [0001] The present invention relates to the technical field of Cloud VR data transmission, in particular to a method and system for Cloud VR data transmission based on edge computing and storage. Background technique [0002] The evolution of local VR to Cloud VR has become an inevitable trend. Cloud VR that supports cloud rendering is of great value in improving user experience, reducing user VR consumption costs, protecting VR content copyrights, and popularizing VR business scenarios. After Cloud VR cloudizes computing and rendering, due to the huge amount of data in VR, the transmission part will become the bottleneck of the entire system. Therefore, it is very important to reduce the amount of transmitted data. There is a large redundancy in the complete transmission of panoramic images, but only transmitting images within the field of view will cause delay or black screen due to network delay and jitter, which greatly affects the viewing experience. S...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T19/00G06T7/80G06T3/60
CPCG06T19/006G06T7/80G06T3/60
Inventor 赵嵩源潘平平潘文琪吴俊
Owner TONGJI UNIV
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