IM6D: Magnetic tracking system with 6-DOF passive markers for dexterous 3D interaction and motion

Jiawei Huang, Tsuyoshi Mori, Kazuki Takashima, Shuichiro Hashi, Yoshifumi Kitamura

Research output: Contribution to journalArticlepeer-review

35 Citations (Scopus)


We propose IM6D, a novel real-time magnetic motion-tracking system using multiple identifiable, tiny, lightweight, wireless and occlusion-free markers. It provides reasonable accuracy and update rates and an appropriate working space for dexterous 3D interaction. Our system follows a novel electromagnetic induction principle to externally excite wireless LC coils and uses an externally located pickup coil array to track each of the LC coils with 5-DOF. We apply this principle to design a practical motion-tracking system using multiple markers with 6-DOF and to achieve reliable tracking with reasonable speed. We also solved the principle's inherent dead-angle problem. Based on this method, we simulated the configuration of parameters for designing a system with scalability for dexterous 3D motion. We implemented an actual system and applied a parallel computation structure to increase the tracking speed. We also built some examples to show how well our system works for actual situations.

Original languageEnglish
Article number217
JournalACM Transactions on Graphics
Issue number6
Publication statusPublished - 2015 Nov


  • 3D user interface
  • Augmented reality
  • Motion capture
  • Sensor
  • Virtual reality

ASJC Scopus subject areas

  • Computer Graphics and Computer-Aided Design


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