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SKINPUT:

APPROPRIATING THE BODY AS AN

INPUT SURFACE

Under Guidance ofMrs. PadmavathiLecturer of CSE

S.R.S.I.T

Presented By

AnLKJNBH

USN:-1RC08CS004

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Plan of the Talk Evolution of Touch Screen

What it is?

How Skinput Works?

Overview

User Research

Advantages

Conclusion Future Enhancement

References

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PREVIOUS WORK

Devices with significant computational power and capabilities can nowbe easily carried on our bodies.

Small size less comfort

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A novel input technique that allows

the skin to be used as a finger input

surface.

To capture this acoustic information,

they developed a wearable armband that

is non-invasive and easily removable

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HOW SKINPUT WORKS

Data was then sent from the client over a local socketto our primary application, written in Java.

Key function of application are:

Live visualization.

Segmentation of data stream.

Classification of Input instances.

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Skinputis a Bio-acoustic Sensing Technique that allows the bodyto be used as an Input Surface.

Overview : Skinput

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Finger Taps on Skin Creates Several Forms of Acoustic Energy

Overview : Skinput Continued

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Transverse Wave Propagation:Finger Impacts Displace The Skin Creating Transverse

Waves

Overview : Skinput Continued

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Overview : Skinput Continued

Longitudinal Wave Propagation: Finger Impacts

Create longitudinal(Compressive) waves that causeinternal structures to vibrate. This in turn Createslongitudinal Wave Forms outwards from the bonetowards skin.

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Overview : Skinput ContinuedOutside View Inside View

A Wearable Bio-acoustic Sensing Array Built into an Armband.

Sensing Elements detect vibrations transmitted through the body. The

two sensor packages shown above each contain five specially weighted

cantilevered piezo films responsive to a particular frequency range.

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Overview : Skinput Continued

Finger Taps on Arm Generated Signals

Variation in Bone Density, Size & Mass as well as filtering

effects from Soft Tissues & Joints Mean Different Locations

that are acoustically distinct.

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Overview : Skinput ContinuedRecognizing Input

Locations Finalizing Input Points

Designed Software Listens for impacts & Classifies them. Then

Different Interactive Capabilities are bounded on different

regions.

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User Research: SkinputPlaying Tetris: Using Fingers

as Control Pad

Active also in Movable

Environment

Using Fingers,Palms,Arms as Control Any Computing Device

Can be run.Response is real time,robust & remains functional

while walking & Accuracy level is 99.5%()

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User Research: Skinput

Using a Pico Projector On the Armband Skinput can also beused as an Output Surface

Using A mobile Phone by Skinput

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User Research: Skinput

Projection of a DynamicGraphical Interface

Finger Inputs are Classified &processed in Real Time

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ADVANTAGES

UI will appear much larger than on screen

Can be used without a visual screen

Ideal for anyone with little to or no eyesight

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CONCLUSION

Since we cannot simply make buttons and screens larger it will

be an alternative approach

Skin put's are not available yet, but could be in the next few

years.

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Future Enhancement

Extensive Research is going on Currently on Skinput to

make the armband more smaller.

Incorporate More Devices with This System.Extend accuracy level.

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References : Skinput http://research.microsoft.com/en-

us/um/redmond/groups/cue/skinput Official HomePage of Skinput.

http://www.chi2010.orgHome Page of Computer &Human Interactions Conference, April,2010.

http://www.chrisharrison.net/projects/skinputPersonal Homepage of Chris Harrison.

http://research.microsoft.com/en-us/um/people/danHomepage of Dan Morris.

http://research.microsoft.com/en-us/um/people/desneyHomepage of Desney Tan.

This paper was Presented at Computer & Human InteractionsConference(CHI-2011) at April,2011, Atlanta,USA & Published by ACM.

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