Foveated VR Display System with Line-of-Sight Detection
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Solution Overview
Problem
Personal computers often struggle to smoothly display virtual reality images due to processing capacity limitations, leading to deteriorated visibility.
Innovation Solution
A display device with a right-eye and left-eye region, equipped with a detector to estimate the user's line of sight, a setting unit to adjust display regions, and a controller to output images corresponding to the detected direction, allowing the system to adjust display performance based on processing capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the display device displays full-resolution stereoscopic images for both eyes, then the image quality and visual experience are improved, but the processing capacity of the personal computer is exceeded, causing display smoothness to deteriorate
Solution Approach 1:
The display device divides the display area into a first display area and a second display area. The controller selectively displays high-resolution images in the first display area (corresponding to the user's line of sight) and lower-resolution or omitted images in the second display area, thereby reducing overall processing requirements while maintaining visual quality in critical regions.
Solution Approach 2:
The system applies different image quality levels to different regions of the display based on their importance. The first display area (foveal region) receives full-resolution, high-quality images, while the second display area (peripheral region) receives reduced-quality or no images, optimizing the balance between visual experience and processing capacity.
2Reliability
If the display device processes and displays images for both left and right eyes simultaneously at high resolution, then the stereoscopic effect is improved, but the processing load increases, causing visibility to deteriorate
Solution Approach 1:
The display device segments the stereoscopic image processing into two parts: the first display area receives processed stereoscopic images for both eyes, while the second display area receives reduced or no processing. This segmentation maintains the stereoscopic effect in critical viewing zones while reducing overall processing load that would otherwise cause visibility deterioration.
Solution Approach 2:
The system provides high-quality stereoscopic processing locally in the first display area where the user's line of sight is directed, while reducing or eliminating processing in the second display area. This ensures the stereoscopic effect is preserved where needed without the processing load causing visibility issues.
Data Source
AI summary
A display device to be disposed in front of eyes of a user includes a display unit having a right-eye region and a left-eye region, a detector configured to detect detection information enabling estimation of a direction of a line of sight of the user, a setting unit configured to set display region information indicating display regions of the right-eye and left-eye regions, and a controller configured to output the display region information and the detection information to a control device. After receiving an image including a right-eye image and a left-eye image corresponding to the display regions indicated by the display region information from the control device, the controller displays the received right-eye image in the display region of the right-eye region indicated by the display region information, and display the received left-eye image in the display region of the left-eye region indicated by the display region information.