Rock-Paper-Fibers Bringing Physical Affordance to Mobile Touch - - PowerPoint PPT Presentation

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Rock-Paper-Fibers Bringing Physical Affordance to Mobile Touch - - PowerPoint PPT Presentation

Nov 01, 2022 202 likes •757 views

Rock-Paper-Fibers Bringing Physical Affordance to Mobile Touch Devices Frederik Rudeck Patrick Baudisch Preview Motivation on current touch devices, every interaction feels the same Microsoft Surface Jord, S., et al. The reacTable. TEI

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Rock-Paper-Fibers

Bringing Physical Affordance to Mobile Touch Devices

Frederik Rudeck Patrick Baudisch

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Preview

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Motivation

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Microsoft Surface™

  • n current touch devices,

every interaction feels the same

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Jordà, S., et al. The reacTable. TEI ’07.

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Rekimoto, J., et al. DataTiles. CHI ’01.

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Goal:

bring custom-shaped physical controls to mobile touch devices

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Rock-Paper-Fibers

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Main Idea:

create physical affordance by reshaping the device

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Main Idea:

create physical affordance by reshaping the device this limits users to one widget at a time, but it is efficient using bimanual interaction

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Benefit/Contribution:

  • physical affordance by deforming

the device as to best match the interaction at hand

  • mobility by serializing the interaction
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Limitations:

  • repeated reconfiguration requires

additional time and manual skills

  • the range of widgets is limited

we address both later with wedges&clamps

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Hardware Prototype

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fiber optic bundle web cam casing

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Recognition

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Guessing Game: slider or play button

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Challenge:

  • fiber location is meaningless
  • however, number of touched fibers

is meaningful

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# touched fiber t t # touched fiber

count the number of touched fiber over time

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convolution of finger and fiber bundle shape

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slider

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play button

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Processing

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# touched fiber t

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match pattern against a database of labeled widget templates

# touched fiber t

matching

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20 40 60 80 100 62.6 88.7 85.0 92.4 92.4 66.2 62.6

recognition rate of first time use

9 participants, 3 repetitions each

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Wedges, Clamps and Sieves

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wedges create multiple widgets

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clamps give widgets custom shape

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sieve ring

large interaction surface

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large interaction surface

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Conclusion

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  • bring physical affordance to mobile

touch devices

Rock-paper-fibers:

  • additional expressiveness by using wedges

and clamps

  • users reshape the touch device itself
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Vision :: touch pads that we can really reconfigure

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we think of rock-paper-fibers as a reconfigurable touch pad

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Lahey, B., et al. PaperPhone. CHI ’11.

we just started to bend devices...

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Wimmer, R., and Baudisch, P . Touch using TDR. UIST ’11.

…we have started to stretch touch devices...

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…but this is just the first step

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reconfigure the device into whatever it takes to best support our task at hand

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we think of rock-paper-fibers as the first step in this direction

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CHI 2011 UIST 2010 UIST 2010 CHI 2010 - best paper UIST 2009 CHI 2009 - nominated CHI 2011

berlin

CHI 2010 CHI 2011 CHI 2010

we have one open PhD/postdoc position

Patrick Baudisch

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Rock-Paper-Fibers

Bringing Physical Affordance to Mobile Touch Devices

Frederik Rudeck Patrick Baudisch