Adaptive VR Display Resolution via Local Quality
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Solution Overview
Problem
Current virtual reality content processing and delivery methods face challenges in providing high-resolution, immersive experiences due to bandwidth constraints, hardware limitations, and inefficiencies in image processing, leading to compromised user engagement and increased power consumption.
Innovation Solution
The method involves adaptively changing display parameters by generating renditions of virtual reality content in real-time based on retrieved parameters such as transmission speed and device capabilities, converting spherical content to rectangular for encoding, and dynamically adjusting resolution to match the maximum displayable resolution, while using crowd-sourced data to optimize projections and transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If high resolution virtual reality content is delivered to provide fully immersive experience, then user immersion is improved, but bandwidth requirements and hardware processing demands increase
Solution Approach 1:
The patent applies different resolution levels to different regions of the spherical content based on viewing direction. High resolution is applied to the current view direction while lower resolution is applied to peripheral regions, creating a non-uniform resolution distribution that reduces overall bandwidth requirements while maintaining immersion quality.
Solution Approach 2:
The system dynamically adjusts the resolution distribution of spherical content based on real-time viewing direction data. As the user moves their head or viewpoint changes, the resolution mapping is updated to prioritize areas currently in view, enabling adaptive bandwidth usage that responds to user behavior patterns.
2Ease of manufacture
If traditional video compression methods are used for 360-degree content, then processing is simplified, but immersion is compromised due to limited transmitted content
Solution Approach 1:
The patent transforms 360-degree spherical content into a 2D equirectangular projection for compression, then maps it back to spherical coordinates for display. This dimensional transformation enables the use of standard 2D compression algorithms while preserving the immersive 3D experience, solving the contradiction between processing simplicity and immersion quality.
3Manufacturing precision
If resolution is increased to improve display quality, then visual fidelity is improved, but power consumption and device overheating increase
Solution Approach 1:
The system allocates higher resolution processing and display resources only to the current view direction rather than uniformly across the entire spherical content. This localized high-resolution processing reduces the overall computational load and power consumption while maintaining high visual fidelity in the area of interest.
Data Source
AI summary
Aspects of the present disclosure include a method and system for the delivery of virtual reality content that enables a more immersive experience to the user by adaptively changing display parameters of virtual reality content using resolution-defined projections. The resolution-defined projections are two-dimensional and virtual reality content agnostic. According to some aspects, the projections can be used to generate virtual reality content images and video that can be encoded and/or compressed for processing and transmission with lower or without increasing bandwidth requirements, and to be perceived of a higher resolution. Additional aspects include, the adaptive focus via the resolution-defined projections using the user's viewing direction and/or orientation, optimization data from a feedback loop and/or crowdsourcing data.