VR Rendering Control Using Line-of-Sight Statistics
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Solution Overview
Problem
Existing VR technologies face challenges in maintaining high-precision rendering of worthful regions while reducing processing load, especially when a user's line of sight does not coincide with the region of interest, leading to potential rendering deterioration or delays during free perspective viewing.
Innovation Solution
An electronic device acquires line-of-sight statistic information to control image-rendering processing for each region in a virtual space, prioritizing high-precision rendering on regions of interest and reducing processing load by lowering image quality in less important areas, and optionally performing preliminary rendering based on line-of-sight statistics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If high-precision rendering is performed on regions including user attention focus, then rendering precision is improved, but processing load increases and rendering may be delayed during visual field changes
Solution Approach 1:
The patent applies local quality by differentiating rendering precision across different regions of the virtual space. High-precision rendering is applied only to regions identified as worthful (based on line-of-sight statistics and content importance), while other regions use standard or reduced precision rendering. This resolves the contradiction by concentrating computational resources on critical regions rather than uniformly applying high precision across the entire field of view.
Solution Approach 2:
The patent performs preliminary rendering of worthful regions in advance based on pre-analyzed line-of-sight statistic information and content metadata. By identifying and pre-rendering important regions before they become the user's actual focus, the system reduces real-time processing load while maintaining high rendering precision when needed, thus resolving the speed-precision tradeoff.
2Manufacturing precision
If high-precision rendering is performed on regions including user attention focus, then rendering precision is improved, but processing load increases
Solution Approach 1:
The patent reduces processing load by applying high-precision rendering only to specific worthful regions rather than the entire virtual space. By using line-of-sight statistic information and content metadata to identify which regions deserve high precision, the system concentrates computational energy on critical areas while using lower precision for peripheral or less important regions, thus resolving the precision-load contradiction.
Solution Approach 2:
The patent applies partial action by performing high-precision rendering only on a subset of regions that are deemed worthful based on analytical data, rather than applying uniform high precision across all regions. This selective approach reduces overall processing load while maintaining high precision where it matters most for user experience and content value.
3Manufacturing precision
If rendering precision is increased in regions of user attention, then image quality is improved, but rendering delays occur during visual field changes
Solution Approach 1:
The patent performs preliminary rendering of worthful regions in advance using pre-analyzed line-of-sight statistics and content metadata. When the user's visual field changes, the system can quickly switch to pre-rendered high-quality images of new focus regions without experiencing rendering delays. This resolves the contradiction by shifting computational work from real-time to pre-processing.
Solution Approach 2:
The patent dynamically adjusts rendering precision based on the user's current visual field and pre-analyzed worthful regions. The system continuously monitors which regions should receive high-precision rendering and adapts its rendering strategy accordingly, ensuring high image quality is maintained in focus regions while minimizing rendering delays during visual field transitions.
Data Source
AI summary
An electronic device includes: a processor, and a memory storing a program which, when executed by the processor, causes the electronic device to perform acquisition processing to acquire line-of-sight statistic information representing a degree at which a line of sight is directed to each of regions in a virtual space; and perform control processing to control a method of image-rendering processing for an image of the virtual space for each of the regions on the basis of the line-of-sight statistic information.