Cross-Space Anchor Positioning Using Image Markers and Pose Fusion
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Solution Overview
Problem
Existing positioning technologies struggle to integrate pose information from devices outside a positioning space into the space effectively, making it difficult to achieve seamless multi-person and multi-viewpoint interaction in Mixed Reality environments.
Innovation Solution
A method and device that combine pose information from a positioning device inside a space with another device outside the space by using image markers and additional information, such as two-dimensional codes, to accurately position anchor points and integrate them into the space, utilizing different positioning means like Motion Capture and Fiducial Markers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple positioning technologies are used for different equipment and requirements, then positioning accuracy and adaptability are improved, but system complexity increases
Solution Approach 1:
The patent divides the positioning system into multiple independent positioning spaces (first positioning space, second positioning space, etc.), each with its own positioning devices and anchor points. This segmentation allows each subsystem to be optimized independently while maintaining overall system functionality, resolving the contradiction between using multiple positioning technologies and system complexity.
Solution Approach 2:
The patent creates a unified positioning system that can handle multiple positioning spaces and devices through universal coordinate transformation mechanisms. The system uses a common method to obtain pose information, perform coordinate transformations, and integrate data from different positioning technologies (image markers, Motion Capture, Fiducial Markers), making the system multi-functional without proportionally increasing complexity.
2Adaptability or versatility
If pose information from devices outside positioning space is integrated into the space, then multi-person and multi-viewpoint interaction is improved, but integration difficulty increases
Solution Approach 1:
The patent introduces anchor points as intermediary elements that connect positioning devices outside the positioning space with the target positioning space. The anchor points serve as reference objects that enable coordinate transformation and pose information integration without requiring direct complex integration between all devices, thus reducing integration difficulty while maintaining versatility.
Solution Approach 2:
The patent creates virtual representations (copies) of physical positioning devices and anchor points in the coordinate system. By working with these copied representations through coordinate transformations, the system can integrate pose information from multiple devices and spaces without the complexity of direct physical integration, enabling seamless multi-person and multi-viewpoint interaction.
3Measurement precision
If different positioning means are used (image marker detection, Motion Capture, Fiducial Markers), then positioning coverage and accuracy are improved, but system integration complexity increases
Solution Approach 1:
The patent employs different positioning means (image marker detection, Motion Capture, Fiducial Markers) by changing the parameters and methods used for obtaining pose information. Each positioning means uses its own optimal parameters and algorithms, and the system integrates them through unified coordinate transformation processes, allowing high positioning coverage and accuracy without proportionally increasing integration complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables accurate positioning of anchor points across different spaces, enhancing immersive experiences in Mixed Reality by integrating pose information from multiple devices, thereby overcoming limitations of single positioning technologies.
Implementation Method 1
The camera unit is configured to detect an image marker displayed by another positioning device outside the first positioning space
Data Source
AI summary
A positioning method comprises the following. Detecting an image marker and receiving an additional information, wherein a first pose information of a first positioning device relative to a target anchor point is included in the additional information, the first positioning device and the target anchor are outside a first positioning space, and a second positioning device is in the first positioning space. Obtaining a second pose information of the second positioning device relative to the first positioning device according to the image marker. Obtaining a positioning-pose information of the second positioning device in the first positioning space through a positioning means which is different from an image marker detection means. Obtaining the target pose information of the target anchor relative to the first positioning space according to the first pose information, the second pose information and the positioning-pose information.