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Virginia Tech

Surface Gesture & Object Tracking on Tabletop Devices

Abstract

dc:description.abstract

In this thesis, we are interested in the use of tabletop surfaces for interactive manipulations. We focus on the implementation of Image Processing algorithms and techniques in two projects exploiting a horizontal surface: "Tangram Project" and "MirrorTrack". The "Tangram Project" studies children's mathematical skills when manipulating geometrical shapes. This project is supported by NFS (NSF 0736151) based on the proposal "Social Organization, Learning Technologies & Discourse: System Features for Facilitating Mathematical Reasoning in PreK-3 Students" by M. Evans, F. Quek, R. Ehrich and J. Wilkins. Our contribution is the design and realization of visio-based tracking software that could be used in a classroom. Our implementation offers three modes of interaction making it easier to study the children's behaviors in specific situations and constraints. The "MirrorTrack Project" is an idea described in previous research [P.-K. Chung et al,2008a] [P.-K. Chung et al,2008b] using a horizontal surface with two side-mounted cameras to track fingertips. Our contribution to the "MirrorTrack Project" is the design and realization of video-based interaction software. "MirrorTrack Project" provides an improvement to one of the Tangram modes (the Virtual mode) by providing real 3D fingertip location above the surface. Among other functionalities, it provides hovering and touch detection [Y. Verdie et al, 2009]. We conclude by describing the possibility of merging those two systems and by highlighting the benefits of such a fusion. Integrating "MirrorTrack" with the "Tangram project" provides even more interaction opportunities for the children.

Degree

thesis:*
Name thesis:degree_name
Master of Science
Level thesis:degree_level
masters
Discipline thesis:degree_discipline
Computer Science
Department dc:contributor.department
Computer Science
Grantor dc:publisher
Virginia Tech
Year dc:date.issued
2010

Author and committee

dc:creator, dc:contributor.*
Author dc:creator
  • Verdie, Yannick
Chair dc:contributor.committeechair
  • Quek, Francis K. H.
Committee members dc:contributor.committeemember
  • Cao, Yong
  • Ehrich, Roger W.

Subjects

dc:subject × 4

Rights

dc:rights
Statement dc:rights
  • In Copyright

Identifiers

dc:identifier.*
Dc Identifier Other
etd-05142010-104344
OAI identifier oai:identifier
oai:vtechworks.lib.vt.edu:10919/32769

Chain of custody

source
Harvested from
Virginia Tech
Base URL
vtechworks.lib.vt.edu/oai/request
Last updated
2026-07-22
Source record
OAI-PMH GetRecord
citation

Verdie, Yannick. Surface Gesture & Object Tracking on Tabletop Devices. masters thesis, Virginia Tech, 2010. http://hdl.handle.net/10919/32769