Number of co-authors:12
Number of publications with 3 favourite co-authors:Won-Chul Bang:SangHyun Kim:DoKyoon Kim:
Jaehyun Han's 3 most productive colleagues in number of publications:Geehyuk Lee:23Woohun Lee:20Seunghwan Lee:5
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Publications by Jaehyun Han (bibliography)
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. Available online
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
Lee, Seunghwan, Han, Jaehyun and Lee, Geehyuk (2011): MultiPress: releasing keys for multitap segmentation. In: Proceedings of ACM CHI 2011 Conference on Human Factors in Computing Systems 2011. pp. 1489-1494. Available online
While MultiTap is one of the most popular text entry methods for mobile phones, it has a fundamental weakness known as MultiTap segmentation problem. Based on the observation that the thumb does not leave the keys between tapping actions, we designed a MultiTap segmentation method where the release action of the thumb is used to indicate input completion. A user study using a touch-sensing keypad prototype to explore the feasibility of the idea and a comparison test to access its benefit revealed promising results supporting the effectiveness of the proposed segmentation method.
© All rights reserved Lee et al. and/or their publisher
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. Available online
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
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. Available online
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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