Virtual Mirror Camera Tracking for Complete Avatar View in XR
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Solution Overview
Problem
In extended reality environments, users face challenges in creating or modifying virtual character images due to poor viewing effects and the difficulty in providing a reference for adjustments, as fixed mirror cameras fail to present a complete image when the avatar position changes, affecting user experience.
Innovation Solution
An image display method and apparatus that determines the orientation and position of a mirror camera based on a first-person perspective camera and a preset distance, allowing the mirror camera to move in sync with the avatar, ensuring the avatar is always presented in the virtual mirror, providing a reference for adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a fixed mirror camera is used, then the device complexity is reduced, but the viewing effect deteriorates when avatar position changes
Solution Approach 1:
The patent applies the dynamics principle by making the mirror camera movable rather than fixed. The mirror camera's position and orientation are dynamically adjusted based on the avatar's position in the extended reality environment, ensuring that the avatar remains fully visible in the virtual mirror throughout movement. This dynamic adjustment resolves the contradiction by sacrificing the simplicity of a fixed camera system to achieve superior viewing effects.
Solution Approach 2:
The patent implements feedback by continuously monitoring the avatar's position and using this information to adjust the mirror camera's parameters. The system calculates the avatar's position relative to the virtual mirror and automatically adjusts the mirror camera's position and orientation to maintain optimal viewing. This feedback mechanism ensures that the viewing effect remains high while managing system complexity through intelligent control.
2Ease of operation
If the mirror camera position is fixed, then the ease of operation is improved, but the adaptability deteriorates when avatar position changes
Solution Approach 1:
The patent applies the self-service principle by enabling the mirror camera system to automatically adjust itself based on the avatar's position. The system performs self-adjustment through automated calculation of camera parameters based on real-time avatar position data, eliminating the need for manual intervention. This maintains ease of operation while significantly improving adaptability to position changes.
Solution Approach 2:
The system transitions from a static mirror camera configuration to a dynamic one that automatically adapts to avatar position changes. The mirror camera's position and orientation are continuously updated based on real-time avatar tracking, allowing the system to maintain optimal viewing conditions without requiring user intervention or manual reconfiguration.
3Device complexity
If a static virtual mirror display is used, then the device complexity is reduced, but the realism deteriorates
Solution Approach 1:
The patent applies dynamics by transforming the static virtual mirror display into a dynamic system that adapts to the avatar's position and movement. The virtual mirror continuously updates the displayed image based on the mirror camera's captured view, creating a realistic mirror effect that moves and adjusts with the avatar. This dynamic approach enhances realism while managing complexity through efficient rendering techniques.
Solution Approach 2:
The system creates a virtual copy of the real-world mirror experience within the extended reality environment. By capturing images through the mirror camera and rendering them in the virtual mirror, the system replicates the familiar real-world mirror interaction, enhancing realism. This copying approach allows users to interact with virtual characters as if they were standing before a physical mirror.
Data Source
AI summary
The present disclosure relates to an image display method and apparatus, and an electronic device, a mirror image display method and apparatus in an extended reality space, an electronic device, and a medium. The image display method includes: determining a first orientation of a mirror camera; determining a first position of the mirror camera based on a position of a first-person perspective camera, a preset distance, and the first orientation; and obtaining a first image based on the first position and the first orientation, and displaying the first image on a virtual mirror.