XR Visual Element Positioning to Prevent Body Overlap
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Solution Overview
Problem
Existing extended reality technologies face challenges in preventing visual elements from overlapping with the user's body, particularly when hand movements are involved, leading to shaking and instability due to inaccurate tracking and fixed positional dependencies.
Innovation Solution
The method involves determining node positions of at least two skeletal nodes of a user in real space, calculating a moving direction and distance based on these nodes, and adjusting the visual element's position to avoid overlap by using a difference operation and force feedback principles, ensuring stable display in extended reality space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If visual element position is fixed relative to skeletal nodes, then display stability is improved, but visual element overlap with user body occurs
Solution Approach 1:
The patent applies dynamics by transitioning from a fixed positional relationship between visual elements and skeletal nodes to a dynamic adjustment mechanism. The visual element position is continuously adjusted based on real-time skeletal node positions and pre-set offset values, allowing the system to adapt to changing user movements while preventing overlap and maintaining display stability.
2Object-affected harmful factors
If visual element position is dynamically adjusted based on skeletal nodes, then visual element overlap is prevented, but display stability deteriorates due to shaking
Solution Approach 1:
The patent implements feedback by continuously monitoring skeletal node positions and using this information to adjust visual element positions in real-time. The system establishes a closed-loop control mechanism where the visual element position is dynamically updated based on the feedback from skeletal node tracking, enabling the system to prevent overlap while maintaining stability through continuous adjustment.
3Device complexity
If fixed positional dependency is used for visual elements, then device complexity is reduced, but tracking accuracy deteriorates
Solution Approach 1:
The patent applies parameter changes by introducing dynamic offset values that are pre-set for different skeletal nodes. Instead of using fixed positional dependencies, the system adjusts visual element positions based on changing offset parameters relative to skeletal node positions. This approach maintains relatively simple system architecture while significantly improving tracking accuracy and preventing visual element overlap.
Data Source
AI summary
This disclosure provides a method, apparatus, terminal, and storage medium for display control based on extended reality. This disclosure provides a method for display control based on extended reality, including: determining node positions of at least two skeletal nodes of a user in a real space; determining a moving direction, and determining a starting position and a moving distance based on the node positions of the at least two skeletal nodes; travelling, in an extended reality space, the moving distance along the moving direction from the starting position to reach a final position; and displaying a visual element at the final position in the extended reality space. This disclosure can avoid the visual element from overlapping with the body of the user.