Immersive Display Gaze Rendering for Motion Sickness Reduction
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Solution Overview
Problem
Immersive displays cause motion sickness and disorientation due to stereoscopic 3D imagery in non-stereoscopic areas and lack of visual references, and high resolution and refresh rates demand excessive processing resources.
Innovation Solution
The immersive display adjusts image display attributes based on user gaze direction, occludes or replaces information in certain areas with static images, and shapes displays to match natural vision, reducing pixel processing demands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If high resolution and high refresh rate are used to display images in the center of the field of view, then image quality is improved, but processing resource requirements increase excessively
Solution Approach 1:
The patent applies different display attributes to different regions of the field of view. The central region (foveal area) receives high resolution and high refresh rate images, while peripheral regions receive lower resolution and lower refresh rate images. This local differentiation maintains image quality where the user looks directly while reducing overall processing requirements.
2Adaptability or versatility
If stereoscopic 3D imagery is displayed across the entire field of view, then immersive experience is improved, but motion sickness and disorientation increase due to unnatural visual presentation in non-stereoscopic areas
Solution Approach 1:
The patent applies stereoscopic 3D imagery selectively to the central field of view where the user's focus is directed, while peripheral areas display non-stereoscopic or differently rendered imagery. This localized approach provides immersive experience in the relevant area while avoiding the harmful effects of forcing 3D imagery into peripheral vision areas where it appears unnatural.
3Measurement precision
If full field of view is rendered at high resolution, then visual clarity is improved, but processing power and bandwidth requirements become excessive
Solution Approach 1:
The patent divides the field of view into multiple regions (central/foveal region and peripheral regions) and renders each region at appropriate resolution levels. The central region receives full high-resolution rendering while peripheral regions use lower resolution, significantly reducing total pixel processing requirements while maintaining visual clarity where the user actually looks.
Solution Approach 2:
Different rendering qualities are applied to different spatial regions of the display. High-resolution rendering is concentrated in the central field of view area, while peripheral areas use reduced resolution, optimizing the balance between visual clarity and processing efficiency.
Data Source
AI summary
An immersive display includes a body, at least one display on the inside of the body for displaying images in front of at least one eye of a user, and a processor. The processor is coupled to the display and operable to obtain information utilized for displaying the images, identify a direction that a user is looking, identify a center of a field of view based on the direction that the user is looking, utilizing the information obtained, display a first portion of the images in a first area of the field of view and display a second portion of the images in a peripheral area of the field of view. The second portion of the images is displayed at one or both of a lower resolution and a lower refresh rate than the first portion of the images.