• You can find a more detailed portfolio on this page.
  • Supporting Older Adults in Locating Mobile Interface Features with Voice Input
    2020

    As mobile applications continue to offer more features, tackling the complexity of mobile interfaces can become challenging for older adults. Owing to a small screen and frequent updates that modify the visual layouts of menus and buttons, older adults can find it challenging to locate a function on a mobile interface quickly---even when familiar with the application. We present a system that supports older adults to quickly locate an on-screen feature on a mobile interface using speech queries.

    CHI 2023[pdf] ASSETS 2020 Extended Abstract[pdf][presentation]

    Personal Air Pollution Monitoring Technologies
    2018 - 2020

    We firstly proposed myCityMeter, a pollution exposure management tool for older adults and their caregivers. It measures the pollutants shown to be associated with cognitive impairment in older adults: PM2.5 and ambient noise. We also proposed whatIbreathe which tracks cumulative exposure to ambient PM2.5

    UbiComp/ISWC 2018 [pdf]
    HCI International 2020 [pdf]

    Identifying How Older Adults Struggle with Mobile Interfaces
    2017 - 2020

    Mobile maps can assist older adultsto navigate independently, avail city facilities, and explore new places. But how accessible are current mobile maps to older adults? To answer this question, we first examined how older adults use mobile maps and the difficulties they encounter. The next step is creating the taxonomy demonstarting and categorizing challenges they face.

    ASSETS 2020 in press

    holoCL: Collaborative Learning System with a Holographic projector
    2017

    Class project for CS522: Human-Computer Interaction

    Our project is to understand the collaborative learning methods that are being practiced currently in the smart classrooms and discussions and build a cost effective system that can be used with minimal resources.

    DoodleLock:N-stroke Rhythmic Drawing Lockscreen
    2016

    The multi-stroke pattern password scheme that allows the user to draw the meaningful patterns which are easy to remember or the patterns that the users usually doodle.

    Platform and library: Android, OpenCV

    Blurry (Sticky) Finger: Proprioceptive Pointing and Selection of Distant Objects for Optical See-through based Augmented Reality.
    2015, 2016

    Propose the AR interaction method in which one uses the unfocused blurred finger, the sense of proprioception and ocular dominance, to aim, point and directly select a distant object in the real world for the purpose of further interaction.

    ISMAR 2016 (demo) [pdf]
    ICAT 2016 [pdf]

    3D Indoor Crime Scene Reconstruction using a smart Phone and Kinect
    2014, 2016

    Funded by National Forensic Service (NFS), Ministry of the Interior-affiliated, Korea

    Using the acquired indoor crime scene models, reconstruct the scene in 3D virtual environment. Users can explore the scene in first person view (victim or criminal) and simulate the scenarios of the crime in virtual space.

    Platform: Unity3D

    Coordination of CCTV and 3D Video and 3D based evidence collecting system
    2015

    Funded by National Forensic Service (NFS), Ministry of the Interior-affiliated, Korea

    System that creates textured 3D face model with detected and captured images of face in 2D video (CCTV).

    Platform and libraries: C++, OpenCV, OpenGL