VR View Transition via Dual Network Paths
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Solution Overview
Problem
In virtual reality systems, when a user moves their head, the new field of view cannot be displayed immediately due to the need to decode new images, leading to potential gaps in the visual experience, and existing solutions either pause the current view or send low-resolution images to maintain continuity, which are undesirable in fast-paced scenarios or resource-intensive.
Innovation Solution
The method involves sending the first virtual reality view over a higher latency network path and a lower resolution version of the new view over a lower latency network path, allowing for seamless transition and reduced latency in image rendering, with the full resolution view being sent once the user is viewing the new area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the new virtual reality view is decoded before display, then the image quality is improved, but the display latency increases and visual continuity is lost
Solution Approach 1:
The system performs preliminary decoding of the new virtual reality view in the background before it is actually needed for display. This allows the high-quality decoded image to be ready immediately when the user's head movement indicates they are viewing the new area, eliminating display latency while maintaining image quality.
Solution Approach 2:
The patent segments the virtual reality content delivery into two parallel processes: continuing to send the current high-quality view over the original network path while simultaneously decoding and preparing the next view in advance. This segmentation allows both high image quality and low latency to be achieved by handling different views at different stages.
2Stability of the object's composition
If a reduced quality version of the viewport is provided during decoding, then visual continuity is maintained, but the image quality deteriorates
Solution Approach 1:
Instead of degrading image quality during transition, the system performs preliminary decoding of the new view in advance. This ensures that when the user's field of view transitions to the new area, the high-quality decoded image is already ready, maintaining both visual continuity and image quality without needing to send reduced quality versions.
3Loss of time
If the new view is decoded in advance, then display latency is reduced, but network bandwidth consumption increases
Solution Approach 1:
The patent segments network resource usage by maintaining the original network path for the current high-quality view while using background processing for pre-decoding the next view. This segmentation allows the system to optimize bandwidth usage by only actively transmitting high-quality content when actually viewed, while background decoding uses minimal network resources.
Solution Approach 2:
The system performs partial decoding of the new view in advance - enough to prepare the image for immediate display when needed, but not so much as to consume excessive bandwidth. This partial action approach balances the trade-off between reducing display latency and managing network bandwidth consumption.
Data Source
AI summary
A method of transitioning between a first virtual reality view and a second virtual reality view within media content of a virtual reality environment is described. The method comprises: sending the first virtual reality view containing the media content to a virtual reality device over a first network path; determining a second, different, virtual reality view containing media content; sending at least a section of the second virtual reality view to the virtual reality device over a second network path, the latency of the second network path being less than the latency of the first network path.