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Please use this identifier to cite or link to this item: http://hdl.handle.net/1993/5232

Title: Evaluating Finger Orientation for Position Awareness on Multi-Touch Tabletop Systems
Authors: Zhang, Hong
Supervisor: Irani, Pourang (Computer Science)
Examining Committee: Eskicioglu, Rasit (Computer Science) Hossain, Ekram (Electrical and Computer Engineering)
Graduation Date: May 2012
Keywords: Multi-touch tabletop
Touch Discrimination
Human-Computer Interaction
Finger Orientation
Issue Date: 9-May-2012
Publisher: ACM
Citation: Hong Zhang, Xing-Dong Yang, Barrett Ens, Hai-Ning Liang, Pierre Boulanger, Pourang Irani. See Me, See You: A Lightweight Method for Discriminating User Touches on Tabletop Displays In CHI 2012, May 5-10, 2012, Austin, TX, USA.
Abstract: Interactive tabletop systems are becoming popular platforms for group activities. However, current common tabletops do not provide capabilities to differentiate interactions among simultaneous users, i.e. to associate a touch point with its proper owner. My thesis proposes and explores the use of an important biometric property of users as the basis for touch discrimination on multi-user tabletops: Finger Orientation (FO). In this thesis, I first collect the FO ranges of users standing in different positions around a tabletop. Second, I implement a system that uses FO to determine where the users are standing, and based on that extrapolate the owner of the touch. Next, I evaluate the system with two separate experiments, present the results, and discuss all findings. Furthermore, I explore some enhancements with a simple quantitative study. My results indicate that finger orientation is a good natural biometric trait enhances multi-user recognition on tabletops.
URI: http://hdl.handle.net/1993/5232
Appears in Collection(s):FGS - Electronic Theses & Dissertations (Public)

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