Junsu Lee

Jiho Park

Dusan Baek

Kai Schaerer

Jungmin Park

Badraa BatUlzii

Seonggyu Jang

Sang Eun Seo

Ga Yun Im

Buyoung Mun

Jiseong Kim

The Tactile Interaction (TACT) Lab explores the integration of touch into human-computer interaction. Research focuses on designing tactile technologies that seamlessly integrate into daily life. The lab investigates how haptics can remain perceptually present while technology fades into the background, emphasizing technically innovative and human-centered interactions. The lab combines knowledge from perception and cognition with hardware prototyping and software development. Students from diverse backgrounds contribute to collaborative research, fostering technology that balances rigor and empathy.

Tactile Interaction (TACT) Lab은 인간-컴퓨터 상호작용에 촉각을 통합하는 연구를 진행한다. 일상생활에 자연스럽게 통합되는 촉각 기술 설계에 중점을 둔다. 햅틱 기술이 어떻게 인지적으로 존재하면서 기술은 배경으로 사라질 수 있는지 연구하며, 기술적으로 혁신적이고 인간 중심적인 상호작용을 강조한다. 인지 및 지각에 대한 지식과 하드웨어 프로토타입 제작 및 소프트웨어 개발 기술을 결합하여 연구를 수행한다. 다양한 배경의 학생들이 협력 연구에 참여하여 엄격함과 공감을 균형 있게 갖춘 기술 개발을 목표로 한다.

We present Mod2Hap, a two-level modular haptic system that enables both body-scale and hand-scale interactions using magnetorheological (MR) fluid. The system comprises (1) configurable frame modules for constructing spatial interaction structures, which can be flexibly assembled to suit various body postures and environments, and (2) haptic modules—rotary (e.g., for dials or pedals) and linear (e.g., for sliders or handles)—that provide customizable handscale feedback interfaces. Each haptic module utilizes MR fluid, whose viscosity varies with applied magnetic fields, to generate tunable resistive feedback. Our design achieves a wide feedback range (0.12–0.52 N·m torque, 41–212 N force) by optimizing the solenoid coil for power efficiency and validating magnetic field distribution via simulation. We demonstrate Mod2Hap through three interactive scenarios—cycling, kayaking, and fishing—and evaluate its performance in a user study with 12 participants. Results show high perceived realism and engagement, supporting the system’s versatility, scalability, and effectiveness as an immersive haptic interaction platform.

Mod2Hap: Two Level Modular Haptic System for Body- and Hand- Interactions using Magnetorheological Fluid

Grain-based compliance illusion mimics the mechanical vibrations that occur when a compliant object deforms with grain-like, short (∼15 ms) impulse-response vibrations. Previous work has demonstrated its robust effect on various types of devices. However, the impact of the device’s inherent compliance (i.e., base compliance) on perceived compliance remains unclear. This paper investigates the influence of base compliance on the perception of illusory compliance through three psychophysical experiments. The results show that (1) the compliance illusion remained effective with base compliance, (2) the description of compliance was affected by both illusory and base compliance, and (3) it is possible to render the compliance with the same magnitude but multiple different feelings.

Diversifying Grain-Based Compliance Illusion by Varying Base Compliance

Understanding how Humans perform Pressure Input on the Body

HapEar: Vibrotactile Array around the Ear for 3D Spatial Cues

The Effect of Implementation Strategies in Compliance Illusions

자신의 피부를 누르는 힘을 입력으로 사용하는 인터페이스에서의 사용자 힘 입력 성능 이해

3차원 진동 그리드 디스플레이를 통한 3차원 좌표 정보 표현

QuadStretcher: A Forearm-Worn Skin Stretch Display for Bare-Hand Interaction in AR/VR

손의 굴곡과 신전을 이용한 양방향 힘 입력 가능성 탐구

Perceptibility of programmable softness displays using magnetorheological elastomers

Augmenting on-body touch input with tactile feedback through fingernail haptics

Design and Field Trial of Tunee in Shared Houses: Exploring Experiences of Sharing Individuals’ Current Noise-level Preferences with Housemates

PseudoBend: Producing Haptic Illusions of Stretching, Bending, and Twisting Using Grain Vibrations

TORC: A Virtual Reality Controller for In-Hand High-Dexterity Finger Interaction

Diagnosing and Coping with Mode Errors in Korean-English Dual-language Keyboard

PseudoBend: Producing haptic illusions of stretching, bending, and twisting using grain vibrations

Designing a non-contact wearable tactile display using airflows

Investigating the information transfer efficiency of a 3x3 watch-back tactile display

Like a Second Skin: Understanding How Epidermal Devices Affect Human Tactile Perception

Exploring Multimodal Watch-back Tactile Display using Wind and Vibration

Evaluation of edge-based interaction on a square smartwatch

QuadStretcher: a forearm-worn skin stretch display for bare-hand interaction in AR/VR

TouchBranch: Understanding interpersonal touches in interactive installation

Diversifying grain-based compliance illusion by varying base compliance

A magnetorheological elastomer device for programmable actuation and sensing of soft haptic experiences

Wind tactor: An airflow-based wearable tactile display

Defying gravity: a novel method of converting screen orientation

Mod2Hap: Two Level Modular Haptic System for Body-and Hand-Interactions using Magnetorheological Fluid

TACT Lab

교수님 소개

이재연

연구실 소개

연구실 키워드

알럼나이가 간 회사

연구실 지원 방법

대우 조건

연도별 논문 인용수

저널 & 학회 논문 출판 수

연구실 논문 목록

Mod2Hap: Two Level Modular Haptic System for Body- and Hand- Interactions using Magnetorheological Fluid

Diversifying Grain-Based Compliance Illusion by Varying Base Compliance

Mod2Hap: Two Level Modular Haptic System for Body- and Hand- Interactions using Magnetorheological Fluid

연구실 보유 특허

대학별 입시끈

우리 연구실 모집

교수님 소개

이재연

연구실 키워드

알럼나이가 간 회사

연구실 지원 방법

대우 조건

연도별 논문 인용수

저널 & 학회 논문 출판 수

연구실 논문 목록

Mod2Hap: Two Level Modular Haptic System for Body- and Hand- Interactions using Magnetorheological Fluid

Diversifying Grain-Based Compliance Illusion by Varying Base Compliance

Mod2Hap: Two Level Modular Haptic System for Body- and Hand- Interactions using Magnetorheological Fluid

연구실 보유 특허

최근 3년간 연구실적 높은 연구실

대학별 입시끈

우리 연구실 모집