Vehicle VR Glasses Motion Compensation for Reduced Kinetosis
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Solution Overview
Problem
Wearers of virtual reality glasses in moving vehicles often experience motion sickness due to a mismatch between perceived sensory stimuli and the visual environment, leading to discomfort and kinetosis.
Innovation Solution
The method involves processing existing virtual environment image data to create a relative shift between background and foreground image planes based on vehicle movement data, without generating new content, to align visual movement with the wearer's physical experience, thereby reducing the risk of kinetosis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If visual content in virtual reality glasses is displayed without adjustment during vehicle movement, then the virtual environment remains stable and undisturbed, but the wearer experiences motion sickness due to mismatch between visual and physical movement
Solution Approach 1:
The visual content is segmented into foreground objects and background. The background is shifted according to vehicle movement data while foreground objects remain relatively stable, creating a layered processing approach that reduces motion sickness without requiring complete reconstruction of the virtual environment
Solution Approach 2:
The position parameters of background elements in the virtual environment are dynamically adjusted based on vehicle movement data (acceleration, velocity, position). This parameter modification aligns visual feedback with physical movement sensations, reducing motion sickness while maintaining content stability
2Reliability
If vehicle movement data is processed and applied to adjust virtual environment display, then visual movement aligns with physical experience reducing kinetosis, but processing complexity and computational requirements increase
Solution Approach 1:
Instead of directly modifying the entire virtual environment, the system creates a simplified representation of vehicle movement (shift vectors) and applies this copied movement pattern to background elements. This approach maintains reliability by aligning visual and physical movement while keeping processing complexity manageable through selective application
Solution Approach 2:
The control device integrates multiple functions: receiving vehicle movement data, processing this data to determine shift amounts, and applying these shifts to virtual content. This multi-functional approach consolidates complexity into a single control system rather than requiring separate systems for each function
3Loss of time
If existing image content is processed with relative shift between background and foreground, then new content generation is avoided and processing time is reduced, but achieving perfect motion alignment becomes more difficult
Solution Approach 1:
The system applies partial action by shifting only the background layer while leaving foreground objects relatively unchanged. This selective processing reduces computational time compared to modifying the entire scene, while still achieving sufficient motion alignment to reduce motion sickness through the background shift
Data Source
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AI summary
The invention relates to a method for operating virtual reality glasses (12) in a vehicle (14), wherein a risk of motion sickness for a wearer (16) of the virtual reality glasses (12) is reduced with the aid of the method. Furthermore, the invention relates to a virtual reality system (10) comprising the virtual reality glasses (12) and the vehicle (14). Within the scope of the method, a vehicle movement of the vehicle (14) is evaluated in such a way that ultimately, after the image data describing the virtual surroundings (22) have been split into a background image dataset and a foreground image dataset, a lateral offset (32) for a position of an object (20) in the foreground (26) in comparison with the background (24) is determined, so that virtual surroundings (34) which are processed in this way can be determined and displayed. Alternatively or additionally, the virtual surroundings (22) can be enlarged in accordance with the vehicle movement, and processed virtual surroundings (34) can be determined by means of a movement of the enlarged virtual surroundings (30) along a movement trajectory (44), and displayed.