Virtual Reality Glasses Collision Warning via Local Transparency
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Solution Overview
Problem
Virtual reality systems often cause discomfort or nausea due to the sensation of colliding with or moving through virtual objects, as existing methods fail to effectively prevent collisions and maintain realistic immersion.
Innovation Solution
A method for operating virtual reality systems that detects the position of virtual reality glasses and specifies a virtual observation position, using a virtual enveloping body to partially transparently display virtual objects when they intersect with this body, allowing the user to be warned of impending collisions while maintaining realistic object relations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If virtual objects are displayed completely opaque in the virtual environment, then the realism and immersion of the virtual environment is improved, but the user cannot perceive potential collisions with virtual objects, causing discomfort or nausea
Solution Approach 1:
The patent applies local quality by making only the portions of virtual objects that intersect with the virtual enveloping body transparent, while keeping the rest of the objects opaque. This localized transparency change allows users to see through specific areas where their virtual body overlaps with objects, providing collision warnings without making entire objects transparent, thus maintaining overall realism while preventing discomfort.
2Object-affected harmful factors
If the virtual enveloping body is made transparent to warn users of collisions, then user comfort is improved, but the realistic appearance of virtual objects is impaired
Solution Approach 1:
The patent maintains realistic appearance by applying transparency only locally to the portions of virtual objects that intersect with the virtual enveloping body, rather than making entire objects transparent. This selective approach preserves the realistic appearance of virtual objects in areas that do not pose collision risks while providing transparency warnings only where necessary.
Solution Approach 2:
The patent uses partial action by applying transparency to only the necessary portions of virtual objects (those intersecting the enveloping body) rather than applying it universally. This partial application of transparency provides sufficient collision warning information to users while minimizing the impairment to the realistic appearance of virtual objects.
3Object-affected harmful factors
If the entire virtual object is made transparent when any part intersects the enveloping body, then collision warning is improved, but the object relation and spatial understanding is lost
Solution Approach 1:
The patent preserves spatial relationship information by making only the intersecting portions of virtual objects transparent rather than the entire object. This allows users to maintain spatial understanding of the complete virtual object structure while receiving collision warnings only for the specific portions that pose a risk, preventing loss of overall spatial context.
Data Source
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Figure 3
AI summary
The invention relates to a method for operating a virtual reality system (10), comprising the steps of: detecting a position of virtual reality glasses (12) using a detection device (16); predefining a virtual observation position (26) depending on the detected position of the virtual reality glasses (12); predefining a virtual bounding volume (28) which surrounds the virtual observation position (26) at least partially; displaying a virtual object (24) arranged in a virtual environment (22), from the virtual observation position (26), using the virtual reality glasses (12) wherein, as long as a part of the virtual object (24) is immersed in said virtual bounding volume (28), this part is displayed as being at least partially transparent. The invention also relates to a virtual reality system (10) having virtual reality glasses (12).