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Sangwon Choi

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Publications by Sangwon Choi (bibliography)

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2011
 
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Choi, Sangwon, Han, Jaehyun, Lee, Geehyuk, Lee, Narae and Lee, Woohun (2011): RemoteTouch: touch-screen-like interaction in the tv viewing environment. In: Proceedings of ACM CHI 2011 Conference on Human Factors in Computing Systems 2011. pp. 393-402.

We explored the possibility of touch-screen-like interaction with a remote control in the TV-viewing environment. A shadow representing the user's thumb touches the screen, presses a button, flicks a cover-flow list, and draws a simple stroke, while the thumb stays and moves on and above the touchpad. In order to implement the concept we developed an optical touchpad for tracking the thumb hovering over its surface, and designed a TV application to demonstrate possible new interaction styles. Throughout two iterations of prototyping, we corrected some of our false expectations, and also verified its potential as a viable option for a TV remote control. This paper presents technical issues and requirements for the hover-tracking touchpad and a complete report of our user studies to explore touch-screen-like interaction for the TV.

© All rights reserved Choi et al. and/or their publisher

 
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Heo, Seongkook, Han, Jaehyun, Choi, Sangwon, Lee, Seunghwan, Lee, Geehyuk, Lee, Hyong-Euk, Kim, SangHyun, Bang, Won-Chul, Kim, DoKyoon and Kim, Changyeong (2011): IrCube tracker: an optical 6-DOF tracker based on LED directivity. In: Proceedings of the 2011 ACM Symposium on User Interface Software and Technology 2011. pp. 577-586.

Six-degrees-of-freedom (6-DOF) trackers, which were mainly for professional computer applications, are now in demand by everyday consumer applications. With the requirements of consumer electronics in mind, we designed an optical 6-DOF tracker where a few photo-sensors can track the position and orientation of an LED cluster. The operating principle of the tracker is basically source localization by solving an inverse problem. We implemented a prototype system for a TV viewing environment, verified the feasibility of the operating principle, and evaluated the basic performance of the prototype system in terms of accuracy and speed. We also examined its application possibility to different environments, such as a tabletop computer, a tablet computer, and a mobile spatial interaction environment.

© All rights reserved Heo et al. and/or ACM Press

 
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Choi, Sangwon, Han, Jaehyun, Kim, Sunjun, Heo, Seongkook and Lee, Geehyuk (2011): ThickPad: a hover-tracking touchpad for a laptop. In: Proceedings of the 2011 ACM Symposium on User Interface Software and Technology 2011. pp. 15-16.

We explored the use of a hover tracking touchpad in a laptop environment. In order to study the new experience, we implemented a prototype touchpad consisting of infrared LEDs and photo-transistors, which can track fingers as far as 10mm over the surface. We demonstrate here three major interaction techniques that would become possible when a hover-tracking touchpad meets a laptop.

© All rights reserved Choi et al. and/or ACM Press

 
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Changes to this page (author)

05 Apr 2012: Modified
05 Apr 2012: Modified
05 Jul 2011: Added

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URL: http://www.interaction-design.org/references/authors/sangwon_choi.html
Jul 10

Visual appearance is one of the most effective variables for quickly differentiating one application from another

-- Bob Baxley, 2003

 
 

Featured chapter

Marc Hassenzahl explains the fascinating concept of User Experience and Experience Design. Commentaries by Don Norman, Eric Reiss, Mark Blythe, and Whitney Hess

User Experience and Experience Design !

 
 

Our Latest Books

Kumar and Herger 2013: Gamification at Work: Designing Engaging Business Software...
by Janaki Mythily Kumar and Mario Herger

 
Start reading

Whitworth and Ahmad 2013: The Social Design of Technical Systems: Building technologies for communities...
by Brian Whitworth and Adnan Ahmad

 
Start reading

Soegaard and Dam 2013: The Encyclopedia of Human-Computer Interaction, 2nd Ed....
by Mads Soegaard and Rikke Friis Dam

 
Start reading
 
 

Help us help you!