3D Image Scroll Angular Speed Control for Visual Fatigue Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing immersive display devices, such as head-mounted displays, cause visual fatigue when scrolling 3D images due to mismatches between accommodation and convergence distances, and do not consider human visual system characteristics, leading to increased viewer fatigue.
Innovation Solution
An electronic device with a processor that controls the display to adjust scroll angular speed based on the depth of the 3D image, using different methods for scroll speeds below and above a specified threshold to reduce visual fatigue and enhance immersion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If an immersive display device scrolls a 3D image at a constant speed regardless of depth, then the scrolling operation is simple and responsive, but visual fatigue increases due to mismatch between accommodation and convergence distances
Solution Approach 1:
The patent applies dynamics by making the scroll speed variable rather than constant. The scroll speed is dynamically adjusted based on the depth information of the 3D image content being scrolled. When scrolling through content at different depths, the system automatically modifies the scrolling velocity to maintain proper accommodation-convergence matching, thereby reducing visual fatigue while preserving smooth scrolling operation.
Solution Approach 2:
The patent changes the scroll speed parameter based on depth information. By monitoring the depth of 3D content and adjusting the scrolling speed accordingly, the system optimizes the viewing experience. This parameter adjustment ensures that scrolling occurs at speeds that are comfortable for the human visual system when viewing immersive 3D content at various depths.
2Device complexity
If a 2D webpage is simply displayed within a VR space without considering HVS characteristics, then the display implementation is straightforward, but visual fatigue of the viewer increases due to physical characteristics of the immersive display
Solution Approach 1:
The patent modifies display parameters by integrating depth information into the scrolling control mechanism. Instead of treating the display as a simple 2D surface, the system adjusts scrolling behavior based on the perceived depth of content, aligning the display behavior with human visual system characteristics and reducing visual fatigue.
3Productivity
If the scroll speed is increased for faster navigation, then productivity improves, but visual fatigue increases due to mismatch between accommodation distance and convergence distance
Solution Approach 1:
The patent implements dynamic scroll speed adjustment that responds to depth information in real-time. This allows the system to optimize navigation efficiency while preventing visual fatigue by adapting scroll velocity to the current depth context, ensuring that fast scrolling does not occur when it would create accommodation-convergence conflicts.
Data Source
AI summary
An electronic device is provided. The electronic device is configured to display a 3-dimension (3D) image using the display, to receive a scroll input on the 3D image, to determine a scroll angular speed based at least on a scroll speed corresponding to the scroll input and a depth of the 3D image, to control the display to display the 3D image based on a first method based on the determined scroll angular speed being less than a specified angular speed, and control the display to display the 3D image based on a second method different from the first method based on the determined scroll angular speed being greater than or equal to the specified angular speed.