VR Display Image Fading for Motion Sickness Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Simulation systems using head-mounted displays (HMDs) for virtual reality (VR) often cause user discomfort due to rapid changes in acceleration and line-of-sight direction of virtual cameras, leading to 3D sickness, as the display image changes significantly with these movements, overwhelming the user's eyes.
Innovation Solution
The system includes a processor that controls the display image on the HMD by changing or fading out the image when specific conditions related to acceleration changes or line-of-sight direction alterations are met, such as collisions or steep angles, to reduce the load on the user's eyes and prevent 3D sickness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the virtual camera follows the moving body's movement and orientation changes, then the virtual reality experience is improved, but the display image changes rapidly causing user discomfort and 3D sickness
Solution Approach 1:
The system performs preliminary action by detecting movement and orientation changes of the moving body before they cause harmful effects. When a change in acceleration or line-of-sight direction is detected, the system proactively changes the display image (e.g., switching to a predetermined image or applying a fade effect) before the user experiences discomfort, thereby preventing 3D sickness while maintaining VR immersion.
2Adaptability or versatility
If the display image changes significantly with movement, then the virtual reality immersion is enhanced, but the load on the user's eyes increases
Solution Approach 1:
The system changes parameters of the display image based on detected movement conditions. When the moving body undergoes significant acceleration changes or orientation shifts, the system modifies display parameters by switching to predetermined images, applying fade effects, or adjusting image rendering parameters. This controlled parameter change reduces eye strain while preserving the essential VR experience.
Data Source
AI summary
A simulation system includes a processor including hardware. The processor performs a moving body process of performing a process of moving a moving body corresponding to a user wearing an HMD in a virtual space, a virtual camera control process of controlling a virtual camera moving in accordance with a movement of the moving body, and a display process of generating an image as viewed from the virtual camera in the virtual space as a display image of the HMD. In the display process, the processor performs a display process of changing, when a change in acceleration of the moving body or a change in a line-of-sight direction of the virtual camera is determined to have satisfied a given change condition, the display image on the HMD to an image different from the image as viewed from the virtual camera.