Head Mounted Display Field-of-View Rendering Optimization
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Solution Overview
Problem
High rendering loads are incurred when providing high-quality three-dimensional virtual space images in head-mounted displays, especially when the view changes, leading to inefficiencies in real-time updates.
Innovation Solution
The method involves generating a virtual space image with lower quality initially and upgrading specific regions corresponding to the user's field-of-view to higher quality, using a reference line of sight to determine the field-of-view region and generating a field-of-view image with increased image quality, allowing for reduced rendering loads and improved user experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If high-quality three-dimensional virtual space images are provided, then image quality is improved, but rendering load is increased
Solution Approach 1:
The patent applies local quality by generating high-resolution images only in the user's field-of-view region while using lower resolution for the rest of the virtual space. The rendering unit determines the field-of-view based on head-mounted display orientation and generates high-quality images selectively in that region, reducing overall rendering load while maintaining perceived image quality.
2Adaptability or versatility
If three-dimensional virtual space image is updated in real time based on change in point of view, then user immersion is improved, but rendering load is increased
Solution Approach 1:
The system updates virtual space images in real-time by selectively rendering high-quality content only in the field-of-view region that changes with user head movements. The rendering unit determines the updated field-of-view and generates high-resolution images only for that specific region, maintaining real-time adaptability while reducing the computational burden of updating the entire virtual space.
Data Source
AI summary
A method for controlling an immersive head mounted display configured to provide a virtual space to a user. The method includes generating a virtual space image that forms a virtual space viewable by the user. The method further includes determining a reference line of sight. The method further includes determining a field-of-view region of the virtual space based on the reference line of sight. The method further includes generating a region of the virtual space image corresponding to the field-of-view region as a field-of-view image having an image quality higher than an image quality of a different portion of the virtual space image.