Sang Ho Yoon, Ke Huo, Karthik Ramani
TMotion: Embedded 3D Mobile Input using Magnetic Sensing Technique
In Proceedings of the 10th International Conference on Tangible, Embedded, and Embodied Interaction (TEI'16), Eindhoven, Netherlands, 2016 (Acceptance Rate: 27%)

Abstract: We present TMotion, a self-contained 3D input that enables spatial interactions around mobile device using a magnetic sensing technique. We embed a permanent magnet and an inertial measurement unit (IMU) in a stylus. When the stylus moves around the mobile device, we obtain a continuous magnetometer readings. By numerically solving non-linear magnetic field equations with known orientation from IMU, we achieve 3D position tracking with update rate greater than 30Hz. Our experiments evaluated the position tracking accuracy, showing an average error of 4.55mm in the space of 80mm×120mm×100mm. Furthermore, the experiments confirmed the tracking robustness against orientations and dynamic tracings. In task evaluations, we verified the tracking and targeting performance in spatial interactions with users. We demonstrate example applications that highlight TMotion’s interaction capability.












Sang Ho Yoon
About Sang Ho Yoon

Sang Ho graduated from Carnegie Mellon University with B.S degree in 2008 with major in mechanical engineering and minor in robotics. In the same year, he graduated from the same school with M.S degree in mechanical engineering. After graduation, he worked at LG display & LG Electronics. There, he worked as a research engineer to carry out several projects like ‘Transparent & Public Display’ and ‘Assistive & Rehabilitation Robot’. Currently, he is a second-year Ph.D student under Prof.Ramani as a research assistant. Current study focuses on tangible & wearable interface application and sensor development for natural human computer interaction.

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Posted in 2016, Embedded Input, Karthik Ramani, Ke Huo, Mid-air Interaction, Publications, Recent Publications, Sang Ho Yoon, TANGIBLE, EMBEDDED & EMBODIED INTERFACES, Tangibles