Portable Tabletops: A Low-Cost Pen-and-Touch Approach

  • Marisol Wong-Villacres
  • Vanessa Echeverría Barzola
  • Roger Granda
  • Katherine Chiluiza Garcia
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 9732)

Abstract

This paper describes the design and implementation of a low-cost portable tabletop to be used in classrooms. This solution enables pen and touch interactions over a projected canvas. Twelve users participated in a user study that gauged the system’s effectiveness to support drawing and moving objects on the surface. Additionally, a stress test to evaluate users’ identification was conducted. Results showed that the system exhibited a fair effectiveness when users draw or move objects. Average errors of 5.6 % to 6.5 % were found when differentiating users. In general, the proposed tabletop is a promising solution at an affordable price; nevertheless, three key challenges need to be addressed before a full deployment of the solution: a better precision to draw complex shapes, a better gesture intepretation when rotating objects and achieving a minimum error for user differentiation.

Keywords

Multi-touch Portable Pen-and-touch Low-cost User differentiation Depth camera User study 

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Copyright information

© Springer International Publishing Switzerland 2016

Authors and Affiliations

  • Marisol Wong-Villacres
    • 1
  • Vanessa Echeverría Barzola
    • 2
  • Roger Granda
    • 2
  • Katherine Chiluiza Garcia
    • 1
  1. 1.Facultad de Ingeniería en Electricidad y ComputaciónEscuela Superior Politécnica del Litoral, ESPOLGuayaquilEcuador
  2. 2.Centro de Tecnologías de InformaciónEscuela Superior Politécnica del Litoral, ESPOLGuayaquilEcuador

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