ABSTRACT
Collaborative Augmented Reality (AR) involves multiple users engaging with a shared augmented environment in real time. Collaborative Augmented Reality demands quick and seamless synchronization between multiple connected devices. Existing methods often suffer from limitations like centralized server dependency, complex marker infrastructure, or sharing of map data. We propose a simple approach utilizing on-device QR codes as shared reference points for device synchronization. Client devices scan the QR code displayed on the host device leverage image tracking to estimate its position and orientation relative to the common reference point, and adjust the coordinate-system configuration to synchronize. The method offers advantages in simplicity and accessibility. This paper presents a detailed design and implementation of a simple AR demo application for mobile devices that utilizes the proposed synchronization methodology to enable a Collaborative Augmented Reality experience.
