IM3D: Magnetic Motion Tracking System for Dexterous 3D Interactions
IM3D is a novel real-time magnetic motion tracking system with multiple tiny, identifiable, wireless, occlusion-free markers that provides reasonable accuracy, a reasonable update rate, and an appropriate working space for dexterous 3D interaction. The system is based on the electromagnetic-induction principle and externally excites wireless markers and tracks with a pick-up coil array for each of their 3D positions and orientations with FFT and inverse problem solving. Based on this principle, the relationship between tracking performance and the parameters of the hardware components is simulated to determine the best configuration and its scalability for dexterous 3D motion. A prototype of the motion tracking system shows that it achieves the expected performance in actual situations.