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Seeing through the fog: an algorithm for fast and accurate touch detection in optical tabletop surfaces

Published: 07 November 2010 Publication History

Abstract

Fast and accurate touch detection is critical to the usability of multi-touch tabletops. In optical tabletops, such as those using the popular FTIR and DI technologies, this requires efficient and effective noise reduction to enhance touches in the camera's input. Common approaches to noise reduction do not scale to larger tables, leaving designers with a choice between accuracy problems and expensive hardware. In this paper, we present a novel noise reduction algorithm that provides better touch recognition than current alternatives, particularly in noisy environments, without imposing higher computational cost. We empirically compare our algorithm to other noise reduction approaches using data collected from tabletops at research labs in Canada and Europe.

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  • (2019)ChemometricsInternational Journal of Fog Computing10.4018/IJFC.20190101012:1(1-42)Online publication date: 1-Jan-2019
  • (2017)A combinational algorithm for connected-component labeling and Euler number computingJournal of Real-Time Image Processing10.1007/s11554-014-0433-y13:4(703-712)Online publication date: 1-Dec-2017
  • (2013)An Algorithm for Connected-Component Labeling, Hole Labeling and Euler Number ComputingJournal of Computer Science and Technology10.1007/s11390-013-1348-y28:3(468-478)Online publication date: 1-May-2013
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  1. Seeing through the fog: an algorithm for fast and accurate touch detection in optical tabletop surfaces

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    cover image ACM Conferences
    ITS '10: ACM International Conference on Interactive Tabletops and Surfaces
    November 2010
    327 pages
    ISBN:9781450303996
    DOI:10.1145/1936652
    Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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    Publication History

    Published: 07 November 2010

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    Author Tags

    1. DI
    2. FTIR
    3. diffuse illumination
    4. frustrated total internal reflection
    5. optical tabletop input

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    ITS'10
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    ITS'10: Interactive Tabletops and Surfaces
    November 7 - 10, 2010
    Saarbrücken, Germany

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    Overall Acceptance Rate 119 of 418 submissions, 28%

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    Cited By

    View all
    • (2019)ChemometricsInternational Journal of Fog Computing10.4018/IJFC.20190101012:1(1-42)Online publication date: 1-Jan-2019
    • (2017)A combinational algorithm for connected-component labeling and Euler number computingJournal of Real-Time Image Processing10.1007/s11554-014-0433-y13:4(703-712)Online publication date: 1-Dec-2017
    • (2013)An Algorithm for Connected-Component Labeling, Hole Labeling and Euler Number ComputingJournal of Computer Science and Technology10.1007/s11390-013-1348-y28:3(468-478)Online publication date: 1-May-2013
    • (2012)A New First-Scan Method for Two-Scan Labeling AlgorithmsIEICE Transactions on Information and Systems10.1587/transinf.E95.D.2142E95.D:8(2142-2145)Online publication date: 2012

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