Virtual Reality Display System Eye Tracking
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Solution Overview
Problem
Current virtual environment systems cause disorientation, blurriness, fatigue, and eye strain due to unnatural image generation using a single viewpoint, failing to account for individual differences in eye positions and perspectives.
Innovation Solution
An image processor receives eye position information for each eye and generates distinct images based on these positions, allowing each eye to view the virtual environment from its own perspective, reducing undesired effects by mimicking natural binocular vision processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single viewpoint is used to generate images for the virtual environment, then the system complexity is reduced, but the user experiences disorientation and eye strain
Solution Approach 1:
The patent segments the single image generation process into multiple independent image generation processes, with one image generated for each eye based on its specific position and orientation. This segmentation allows each eye to receive appropriately tailored images, reducing binocular conflict and eye strain while maintaining manageable system complexity through modular architecture.
Solution Approach 2:
The patent applies local quality by generating distinct images with different viewpoints for each eye, rather than using a single common viewpoint for both eyes. Each eye receives an image optimized for its specific anatomical position and orientation, creating locally optimized visual experiences that reduce disorientation and fatigue.
2Measurement precision
If head tracking is used to improve viewing accuracy, then the three-dimensional view is enhanced, but undesired effects such as fatigue and blurriness increase
Solution Approach 1:
The patent implements dynamics by continuously adapting the viewpoint and image generation parameters in real-time based on tracked eye position and orientation. As the user's eyes move, the system dynamically adjusts which portions of the virtual environment are rendered for each eye, maintaining optimal viewing conditions and reducing fatigue associated with static display systems.
Solution Approach 2:
The patent employs feedback mechanisms where eye tracking data is continuously fed back to the image generation system. This feedback loop allows the system to adjust image parameters based on actual eye position, ensuring that each eye receives appropriately oriented images that match its current viewing direction, thereby reducing blurriness and fatigue.
3Shape
If stereographic images are displayed to provide a three-dimensional view, then the virtual environment realism is improved, but eye strain and headaches increase
Solution Approach 1:
The patent segments the stereoscopic display approach by generating separate images for each eye rather than relying on traditional stereographic methods that present a single three-dimensional view. This segmentation allows each eye to process images optimized for its specific perspective, reducing the binocular conflict that causes eye strain and headaches while maintaining three-dimensional perception.
Solution Approach 2:
The patent applies parameter changes by dynamically adjusting image generation parameters such as viewpoint position, orientation, and field of view for each eye based on real-time eye tracking data. This allows the system to optimize image parameters for each eye's anatomical characteristics and current viewing state, reducing strain while maintaining realistic three-dimensional presentation.
Data Source
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AI summary
A method and apparatus for displaying a virtual environment (204). First eye position information (226) for a first eye (234) in a head (236) of a person (206) and second eye position information (228) for a second eye (240) in the head (236) of the person (206) is received. A first image (252) of the virtual environment (204) for the first eye (234) is generated based on the first eye position information (226). A second image (254) of the virtual environment (204) for the second eye (240) is generated based on the second eye position information (228) for the second eye (240). The first image (252) and the second image (254) for display are sent to the person (206).