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Mechanical force redistribution: enabling seamless, large-format, high-accuracy surface interaction

Published: 26 April 2014 Publication History

Abstract

We present Mechanical Force Redistribution (MFR): a method of sensing which creates an anti-aliased image of forces applied to a surface. This technique mechanically focuses the force from a surface onto adjacent discrete forcels (force sensing cells) by way of protrusions (small bumps or pegs), allowing for high-accuracy interpolation between adjacent discrete forcels. MFR works with any force transducing technique or material, including force variable resistive inks, piezoelectric materials and capacitive force plates. MFR sensors can be tiled such that the signal is continuous across contiguous tiles. By minimizing active materials and computational complexity, MFR makes large-format interactive walls, collaborative tabletops and high-resolution floor tiles possible and economically feasible.

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    cover image ACM Conferences
    CHI '14: Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
    April 2014
    4206 pages
    ISBN:9781450324731
    DOI:10.1145/2556288
    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 the author(s) 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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    Published: 26 April 2014

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    Author Tags

    1. floors
    2. force
    3. input device
    4. large format
    5. mechanical force redistribution
    6. pressure
    7. sensor
    8. tabletop
    9. walls

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