AR (Augmented Reality) multi-person collaborative interactive projection system and method for public space

By employing a multi-source spatial calibration module, a conflict resolution sub-module, an adaptive interactive projection engine, and a posture compensation interactor, the problems of device pose drift, operational conflicts, and environmental changes in public space AR multi-person collaborative interactive systems are solved, thereby improving the system's collaboration, interaction efficiency, and user experience.

CN122340252AActive Publication Date: 2026-07-03RESEARCH INSTITUTE OF TSINGHUA UNIVERSITY IN SHENZHEN +1
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Patent Information

Application Number
CN202610787165.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-06-03
Publication Date
2026-07-03
Estimated Expiration
2046-06-03

AI Technical Summary

Technical Problem

Existing technologies in AR multi-person collaborative interactive systems for public spaces suffer from problems such as relative pose drift and deviation between devices, unfair arbitration of operational conflicts, unsuitable rendering strategies, and registration errors caused by user fatigue and environmental changes. These issues affect the spatial consistency, interaction efficiency, and user experience of multi-person collaboration.

Method used

A multi-source spatial calibration module is used for global coordinate system registration, a weighted nearest neighbor iterative algorithm is used to generate a unified world coordinate system, and the priority of operations is arbitrated by a conflict resolution submodule; an adaptive interactive projection engine dynamically adjusts the rendering range and details, a posture compensation interactor detects user fatigue and switches the interaction mode; and a feature point cloud dynamic filtering and coordinate system aging compensator handle environmental changes.

Benefits of technology

It improves the spatial consistency and registration accuracy of multi-user collaborative systems, resolves operational conflicts, optimizes the perception of virtual content under limited field of view, alleviates user fatigue, and enhances the robustness and stability of the system.

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Abstract

The invention discloses an AR (Augmented Reality) multi-person collaborative interactive projection system and method for a public space, and belongs to the technical field of AR multi-person collaborative interactive projection, and the system comprises a multi-source space calibration module which is configured to extract static physical feature point clouds in the public space based on real-time environment images and depth data collected by a plurality of AR devices, and to obtain a static physical feature point cloud; and performing global registration on the feature point cloud by using a weighted nearest neighbor iterative algorithm to generate a unified world coordinate system. According to the invention, global registration is carried out on static physical feature point clouds collected by a plurality of AR devices through a multi-source space calibration module by using a weighted nearest neighbor iterative algorithm to generate a unified world coordinate system, relative pose deviation between the AR devices is detected, and when the deviation exceeds a preset threshold, a dynamic re-calibration process is triggered. The problem that the coordinate systems of the multiple AR devices are inconsistent in the public space is effectively solved, and the space consistency and registration precision of multi-person cooperation are remarkably improved.
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