Virtual Content Presentation Modes for XR Head Motion Jitter
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Solution Overview
Problem
Head-locked virtual content appears jumpy or jittery during rotational head movements due to device limitations and human visual system properties, causing discomfort in XR environments.
Innovation Solution
Implement methods and systems that adjust the presentation mode of virtual content based on detected head poses, using threshold-based criteria to transition between different presentation modes and offset values, ensuring smooth movement and alignment within the XR environment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If head-locked virtual content remains stationary within user's field of view during rotational head movements, then content stability is improved, but the content appears jumpy or jittery in relation to the environment
Solution Approach 1:
The patent implements multiple presentation modes (first and second modes) that dynamically switch based on head pose criteria. The system transitions from a first presentation mode with initial offset values to a second presentation mode with adjusted offset values when head movement exceeds thresholds, creating a dynamic adaptation that reduces jitter while maintaining stability
Solution Approach 2:
The system changes offset parameters based on detected head pose. When head movement satisfies motion criteria, the offset values are adjusted from first offset values to second offset values, modifying the content's presentation parameters to eliminate jitter and improve visual comfort
2Shape
If virtual content is moved away from first location towards second location during head pose change, then content alignment with head pose is improved, but movement smoothness may be compromised
Solution Approach 1:
The system detects head pose changes in advance and determines whether they satisfy motion criteria before executing presentation mode transitions. This preliminary detection allows the system to prepare for alignment adjustments while maintaining smooth transitions by only changing modes when necessary
Solution Approach 2:
The system continuously monitors head pose and uses this feedback to determine when to switch between presentation modes. The feedback loop compares current head pose against motion criteria thresholds, enabling smooth, context-aware transitions that maintain alignment without compromising movement quality
Data Source
AI summary
In one implementation, a method for improving comfortability of virtual content. The method includes: while detecting a first head pose, presenting virtual content in a first presentation mode at a first location; and in response to detecting a change from the first head pose to a second head pose: in accordance with a determination that the difference between the first and second head poses indicates a motion that satisfies a first motion criterion, presenting the virtual content in a second presentation mode while moving the virtual content away from the first location towards a second location that is the first set of offset values relative to the second head pose; and in accordance with a determination that the difference between the first and second head poses indicates a motion that satisfies a second motion criterion different from the first motion criterion, changing an appearance of the virtual content.