VR Video Transmission via Wireless Position Prediction and GPU Offloading
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Solution Overview
Problem
Current VR playback devices cannot share VR or AR videos in real time with other users and are limited by wired connections, which cause entanglement issues and reduce user experience due to heating and frame rate reduction.
Innovation Solution
A method for wireless transmission of VR and AR videos between a VR playback terminal and a server, using position prediction models and wireless protocols like DLNA, Miracast, and AirPlay to enable sharing and improve visual effects through GPU adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wired connection is used for VR playback, then stable video transmission is achieved, but user mobility is restricted and cable entanglement occurs
Solution Approach 1:
The patent replaces the mechanical cable connection system with a wireless transmission system. The VR playback terminal transmits video data wirelessly to the display device, eliminating the physical cable that causes entanglement and mobility restrictions while maintaining stable video transmission through wireless communication protocols
2Ease of operation
If mobile terminal is used for VR playback, then device portability is improved, but heating occurs and frame rate reduces
Solution Approach 1:
The patent extracts the heavy processing functions from the mobile VR terminal and transfers them to a separate display device or server. The terminal only needs to capture and transmit video data, while the display device performs GPU rendering and video processing, significantly reducing the terminal's computational load and heat generation
3Adaptability or versatility
If video sharing is implemented, then user experience is enhanced, but network bandwidth consumption increases
Solution Approach 1:
The patent implements a video sharing mechanism where the VR playback terminal transmits the video signal to other display devices through wireless communication. The shared video is rendered and processed by the receiving display devices' GPUs, allowing multiple users to view the same VR content simultaneously without duplicating the full video data stream, thus reducing network bandwidth consumption
Data Source
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AI summary
Disclosed are a video transmission method, a server, a VR playback device and a computer-readable storage medium. The method includes: predicting, according to obtained first position information of a virtual reality VR playback terminal, second position information of the VR playback terminal within a set time length; and sending, when a compressed video of a viewing angle that corresponds to the second position information is sent to the VR playback terminal, the compressed video to other video playback terminals when a sharing instruction sent by the VR playback terminal is received, so that the other video playback terminals play back the compressed video. Wireless transmission of a VR video and/or an AR video is achieved, thus effectively avoiding constraints on a user from a cable brought by wired transmission; and sharing the VR video and/or the AR video played back by the VR playback device to the other video playback devices for play back is achieved, thus effectively improving user experience.