Ravin Balakrishnan

schoolUniversity of Torontobar_chart#1782 Global Rank

Total Papers

HCI Rank

#1782

Research Areas

Years Active

Recent Publications

Stargazer: An Interactive Camera Robot for Capturing How-To Videos Based on Subtle Instructor Cues

Live and pre-recorded video tutorials are an effective means for teaching physical skills such as cooking or prototyping electronics. A dedicated cameraperson following an instructor’s activities can improve production quality. However, instructors who do not have access to a cameraperson’s help often have to work wi…

CHI '225th+ AuthorTeleoperation & Telepresence

ASTEROIDS: Exploring Swarms of Mini-Telepresence Robots for Physical Skill Demonstration

Online synchronous tutoring allows for immediate engagement between instructors and audiences over distance. However, tutoring physical skills remains challenging because current telepresence approaches may not allow for adequate spatial awareness, viewpoint control of the demonstration activities scattered across an…

UIST '214th Author360° Video & Panoramic Content +2

Route Tapestries: Navigating 360 Virtual Tour Videos Using Slit-Scan Visualizations

An increasingly popular way of experiencing remote places is by viewing 360 virtual tour videos, which show the surrounding view while traveling through an environment. However, finding particular locations in these videos can be difficult because current interfaces rely on distorted frame previews for navigation. To…

CHI '19CorrespondingVoice User Interface (VUI) Design +2

Integrating Multimedia Tools to Enrich Interactions in Live Streaming for Language Learning

Online language lessons have adopted live broadcasted videos to provide more real-time interactive experiences between language teachers and learners. However, learner interactions are primarily limited to the built-in text chat in the live stream. Using text alone, learners cannot get feedback on important aspects of…

CHI '185th+ AuthorFoot & Wrist Interaction +1

PageFlip: Leveraging Page-Flipping Gestures for Efficient Command and Value Selection on Smartwatches

Selecting an item of interest on smartwatches can be tedious and time-consuming as it involves a series of swipe and tap actions. We present PageFlip, a novel method that combines into a single action multiple touch operations such as command invocation and value selection for efficient interaction on smartwatches. Pa…

UIST '18CorrespondingHaptic Wearables +2

Asterisk and Obelisk: Motion Codes for Passive Tagging

Machine readable passive tags for tagging physical objects are ubiquitous today. We propose Motion Codes, a passive tagging mechanism that is based on the kinesthetic motion of the user's hand. Here, the tag comprises of a visual pattern that is displayed on a physical surface. To scan the tag and receive the encoded…

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