1. THE HUMAN BODY AS TOUCH SCREEN
Manoharbhai Patel Institute Of Engineering
& Technology
Name : Swatantra S. Gupta
Roll No. : 23
Branch : Computer Technology
Session : Final Year – 2015/2016
Seventh Semester 2015
Guided By :
Prof. A. D. Warbhe

3. SKINPUT TECHNOLOGY
Turns human body into a touch screen input interface.

4. What is Skinput Technology?
 Giving input through skin
 It listen to vibrations in our body
 Skin put uses a series of sensors to
track where a user taps on his arm.
 Provide an always available mobile
input system
 Turns The body into a touch-screen
interface.
 The arm is an instrument

5.  Screens are smaller, cameras are more ubiquitous,
touch screen is everywhere.
 Mobility , flexibility , responsiveness are getting more
demands.
 Microsoft puts forward a new flesh-control input
technology called “SKINPUT”.
Why this?

6. Introduction
 Developed by Chris Harrison, Desney Tan, And Dan
Morris of the Microsoft Research’s.
 First introduced in Microsoft’s Techfest 2010.
 Technology that appropriates the Human Body as
Transmission.
 Project is Under Active Development, Yet Not Available
Commercially.

7. WHAT SKINPUT DOES ?
 Allows User to Tap their Skin.
 Uses Series of Sensor to determine Tap location.
 Detect Waves.
 Body Creates different types of variations Depending
on the features of Bones and Muscles.
 Skinput listens to these Variation to determine Tapped
location.

8. WHAT MAKES IT WORKS ?
 Pico – projector
 Bluetooth
 Bio – Acoustic

9. HOW SKINPUT WORKS ?
 Pico – Projector :
 Small Size Projector
 Used for display purpose in skinput system.

10. Working
 When User tap on skin(Hand),the Bio-Acoustics &
Sensors study the sound waves.
 Variations in bone density, size and mass and the soft
tissue and joints create Acoustically different locations
 When a finger taps the skin ,several distinct forms of
acoustic energy are produced
 Transverse wave.
 Longitudinal wave.

11. o When you tap your skin with your finger you generate
transverse waves.
o Tapping on soft regions of the arm create higher amplitude
transverse wave than tapping on boney areas.

12.  Cause internal skeletal structure to vibrate.
 These waves travel through the soft tissues of the arm.
 Joints play an important role in making tapped locations
acoustically distinct.
 This makes joints behave as acoustic filters.

13. Bio - Acoustics : sensing
 Signal is sensed and worked
upon
 This is done by wearing sensor
armband
 The two sensor packages shown
Each contain five, specially
weighted, cantilevered piezo
films, responsive to a particular
frequency range.

14. Armband Prototype
 Two arrays of five sensing
elements incorporated into an
armband
 Two sensor packages focus on
the arm of input
 One package was located near
the Radius other near the Ulna
 Signals transmitted though
denser bones

15. Processing

16. Input Location
 Place the Sensor above the Elbow.

17. Applications
Mobile
Gaming
I-pods
Simpler Browsing Systems.

18. Advantages
 No Need to Interact with the Gadgets directly.
 A new way of operating a mobile phone.
 People with larger fingers get trouble in
Navigating tiny buttons on Mobile Phones. With
Skinput that problems disappear.

19. Disadvantages
 Accuracy can degrade.
 High cost.
 Band seems easy enough to Slip on.

20. Future Implications
With Small sized Pico Projectors, skinput
oriented systems are an Emerging trend.
Research is carried out for Smaller Wrist
Watch sized sensor armband.

21. Conclusion
System performs very well for a series of
Gestures even if the body is in motion.
This Approach provides an always available,
Naturally portable and on body finger input
system.
Skinput is very interesting technology.

22. Reference
David J. Kasik Advanced Graphics Technology
May/June 2011.
Lauren Goode “The Skinny on Touch
Technology” Report.
Paul Wallis How to wear a working computer
display on your skin. 2010.

23. Thank You