Seongkook Heo

schoolUniversity of Torontobar_chart#1964 Global Rank

Total Papers

HCI Rank

#1964

Research Areas

Years Active

Recent Publications

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

We present a technique for haptic feedback that creates the illusion that a rigid device is being stretched, bent, or twisted. The method uses a single 6-DOF force sensor and a vibrotactile actuator to render grain vibrations to simulate the vibrations produced during object deformation based on the changes in force o…

UIST '192nd AuthorShape-Changing Interfaces & Soft Robotic Materials +2

Plane, Ray, and Point: Enabling Precise Spatial Manipulations with Shape Constraints

Modern virtual reality controllers offer direct, quick, and easy manipulation of virtual objects. However, precisely placing objects using direct manipulation is still challenging in 3D environments. This paper presents Plane, Ray, & Point, a set of novel interaction techniques that enable quick object alignment and m…

CHI '183rd AuthorSocial Platform Design & User Behavior +1

You Watch, You Give, and You Engage: A Study of Live Streaming Practices in China

Despite gaining traction in North America, live streaming has not reached the popularity it has in China, where live- streaming has a tremendous impact on the social behaviors of users. To better understand this socio-technological phenomenon, we conducted a mixed methods study of live streaming practices in China. We…

UIST '183rd AuthorVibrotactile Feedback & Skin Stimulation +1

FDSense: Estimating Young's Modulus and Stiffness of End Effectors to Facilitate Kinetic Interaction on Touch Surfaces

We make touch input by physically colliding an end effector (e.g., a body part or a stylus) with a touch surface. Prior studies have examined the use of kinematic variables of collision between objects, such as position, velocity, force, and impact. However, the nature of the collision can be understood more thoroughl…

CSCW '182nd AuthorLearning

StreamWiki: Enabling Viewers of Knowledge Sharing Live Streams to Collaboratively Generate Archival Documentation for Effective In-Stream and Post Hoc Learning

Knowledge-sharing live streams are distinct from traditional educational videos, in part due to the large concurrently-viewing audience and the real-time discussions that are possible between viewers and the streamer. Though this medium creates unique opportunities for interactive learning, it also brings about the ch…

CHI '181st AuthorForce Feedback & Pseudo-Haptic Weight +1

Thor’s Hammer: An Ungrounded Force Feedback Device Utilizing Propeller-Induced Propulsive Force

We present a new handheld haptic device, Thor’s Hammer, which uses propeller propulsion to generate ungrounded, 3-DOF force feedback. Thor’s Hammer has six motors and propellers that generates strong thrusts of air without the need for physical grounding or heavy air compressors. With its location and orientation trac…

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