HMD Navigator is a real-world navigation prototype developed for Meta Quest 3, as part of a research internship at Tokyo University of Technology. Built with Unity XR and custom graph-based pathfinding, it visualizes spatial routes both on a virtual map and directly in the user's real environment using MR overlays like arrows, paths, and direction indicators.

A standout feature is the use of QR marker detection and computer vision (CV) to calibrate and align the virtual navigation system with the physical world. By scanning real QR markers, the system calculates the user’s position and orientation, enabling accurate world-anchored path visualization and real-time re-alignment as the user moves.