Invented By

Presented By Md. Shihab Uddin

Roll : 0607029 CSE,KUET

Outline

• Overview• User Research • Future • References

Overview

Skinput is a Bio-acoustic Sensing Technique that allows the body to be used as an Input Surface.

Overview : Skinput

Finger Taps on Skin Creates Several Forms of Acoustic Energy

Overview : Skinput Continued

Overview : Skinput Continued

Transverse Wave Propagation: Finger Impacts Displace The Skin Creating Transverse Waves

Overview : Skinput Continued

Longitudinal Wave Propagation: Finger Impacts Create longitudinal(Compressive) waves that cause internal structures to vibrate. This in turn Creates longitudinal Wave Forms outwards from the bone towards skin.

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.

Overview : Skinput ContinuedFinger 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.

Overview : Skinput ContinuedRecognizing Input Locations Finalizing Input Points

Designed Software Listens for impacts & Classifies them. Then Different Interactive Capabilities are bounded on different regions.

User Research: Skinput

Playing Tetris: Using Fingersas 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%()

User Research: SkinputUsing a Pico Projector On the Armband Skinput can also be used as an Output Surface

Using A mobile Phone by Skinput

User Research: SkinputProjection of a Dynamic Graphical Interface

Finger Inputs are Classified & processed in Real Time

Future: Skinput

• Extensive Research is going on Currently on Skinput to

make the armband more smaller.Incorporate More Devices with This System.Extend accuracy level.

References : Skinput • http://

research.microsoft.com/en-us/um/redmond/groups/cue/skinput Official Home Page of Skinput.

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

• http://www.chrisharrison.net/projects/skinput Personal Homepage of Chris Harrison.

• http://research.microsoft.com/en-us/um/people/dan Homepage of Dan Morris.

• http://research.microsoft.com/en-us/um/people/desney Homepage of Desney Tan.

This paper was Presented at Computer & Human Interactions Conference(CHI-2010) at April,2010, Atlanta,USA & Published by ACM.

THANK YOU

Q & A