Kyle Koh

Motivation

We present three novel methods to facilitate one hand targeting at discomfort regions on a mobile touch screen using tilting gestures; TiltSlide, TiltReduction, and TiltCursor. We conducted a controlled user study to evaluate them in terms of their performance and user preferences by comparing them with other related methods, i.e. ThumbSpace, Edge Triggered with Extendible Cursor (ETEC), and Direct Touch (directly touching with a thumb). All three methods showed better performance than ThumbSpace in terms of speed and accuracy. Moreover, TiltReduction led users to require less thumb/grip movement than Direct Touch while showing comparable performance in speed and accuracy.

Video

Publication

2015.04 "Understanding Users’ Touch Behavior on Large Mobile Touch-Screens and Assisted Targeting by Tilting Gesture"
    by Youli Chang, Sehi L'Yi, Kyle Koh, Jinwook Seo
    Presented as Long Paper at CHI 2015, Apr 18-23, 2015 in Seoul, South Korea.
    Full PDF - Supplemental Video(YouTube Link) - Research Page@HCIL -  Research Page@Here
    http://dx.doi.org/10.1145/2702123.2702425