Seung Heon Lee

@inproceedings{10.1145/3706598.3713175,
author = {Youn, Jung-Hwan and Lee, Seung Heon and Shultz, Craig},
title = {HaptiCoil: Soft Programmable Buttons with Hydraulically Coupled Haptic Feedback and Sensing},
year = {2025},
isbn = {9798400713941},
publisher = {Association for Computing Machinery},
address = {New York, NY, USA},
url = {https://doi.org/10.1145/3706598.3713175},
doi = {10.1145/3706598.3713175},
abstract = {We present HaptiCoil, an embedded system and interaction method for prototyping low-cost, compact, and customizable wide bandwidth (1-500 Hz) soft haptic buttons. HaptiCoil devices are built using mass-produced, waterproof planar micro-speakers which are adapted to direct energy to the skin using a novel hydraulic coupling mechanism. They can sense force input, using a measurement of self-inductance, and provide output in a single package, yielding a flexible all-in-one button solution. Our devices offer a wider perceptual range of tactile stimuli than industry standard approaches, while maintaining comparable power threshold levels (typical threshold under 40 mW). We detail the construction and underlying principles of our approach, as well as an extensive physical quantification of both input and output. We share psychophysical data on device bandwidth, and show three illustrative examples of how HaptiCoil buttons can implemented in use cases such as spatial computing, digital inking, and remote control.},
booktitle = {Proceedings of the 2025 CHI Conference on Human Factors in Computing Systems},
articleno = {155},
numpages = {16},
keywords = {Haptics, Buttons, Human-Computer Interaction, Speaker, Voice-coil},
location = {
},
series = {CHI '25}
}

@INPROCEEDINGS{10520865,
  author={Lee, Seung Heon and Kollannur, Sandeep and Culbertson, Heather},
  booktitle={2024 IEEE Haptics Symposium (HAPTICS)}, 
  title={Beyond Sight: The Role of Kinesthetic Feedback in Redirected Walking within Virtual Reality}, 
  year={2024},
  volume={},
  number={},
  pages={321-328},
  keywords={Legged locomotion;Visualization;Navigation;Virtual environments;Modulation;User experience;Haptic interfaces},
  doi={10.1109/HAPTICS59260.2024.10520865}
}

@INPROCEEDINGS{9995584,
  author={Popescu, Voicu and Lee, Seung Heon and Choi, Andrew Shinyoung and Fahmy, Sonia},
  booktitle={2022 IEEE International Symposium on Mixed and Augmented Reality (ISMAR)}, 
  title={Complex Virtual Environments on Thin VR Systems Through Continuous Near-Far Partitioning}, 
  year={2022},
  volume={},
  number={},
  pages={35-43},
  keywords={Geometry;Virtual environments;Rendering (computer graphics);Augmented reality;Computing methodologies;Computer graphics;Graphics systems and interfaces;Virtual reality},
  doi={10.1109/ISMAR55827.2022.00017}
}