VR Walkthrough View Generation Using 3D Model Fusion
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Solution Overview
Problem
Current virtual reality (VR) technologies allow only three-degree of freedom walkthroughs, where users can change viewing angles but not positions, resulting in distorted and deformed walkthrough views when the viewing position is changed.
Innovation Solution
A method and apparatus for generating walkthrough views that fuse initial and repaired three-dimensional models based on depth differences between intersection-points, enabling six-degree of freedom walkthroughs by combining initial and repaired three-dimensional models to render accurate and non-distorted views.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a 360-degree panoramic image is used for virtual scenario walkthrough, then users can view the environment in three-degree of freedom by changing viewing angle, but the walkthrough view becomes deformed and distorted when the user changes the viewing position
Solution Approach 1:
The patent transitions from two-dimensional panoramic images to three-dimensional models, adding a spatial dimension that enables accurate representation of the environment from multiple viewing positions and angles, thereby eliminating distortion while maintaining versatility
Solution Approach 2:
The patent changes the fundamental parameters of the representation from fixed panoramic coordinates to dynamic three-dimensional spatial coordinates, allowing the model to adapt to different viewing positions and angles without distortion by recalculating based on the new viewpoint
Data Source
AI summary
Provided a walkthrough view generation method, apparatus and device, and a storage medium. The method includes acquiring an initial three-dimensional model and a repaired three-dimensional model corresponding to the initial three-dimensional model in the same spatial region, and the repaired three-dimensional model is obtained by repairing the spatial information in the initial three-dimensional model; determining a first intersection-point set between walkthrough light rays corresponding to current walkthrough parameters and the initial three-dimensional model and a second intersection-point set between the walkthrough light rays and the repaired three-dimensional model respectively, the current walkthrough parameters include a walkthrough viewing position after moving and a walkthrough viewing angle after moving; and fusing the initial three-dimensional model and the repaired three-dimensional model according to the depth differences between intersection-points of the first intersection-point set and corresponding intersection-points of the second intersection-point set and rendering the fused result to obtain the current walkthrough view.