Uses skin as a touch screen

1. SKINPUT TECHNOLOGY
PRESENTED BY : BIRAJADAR SONALI S.
GUIDED BY : KULKARNI SUSHIL V.

2. CONTENT
 Introduction
 Principle
 Working
 Advantage
 Disadvantage
 Application
 Skinput in future
 Conclusion
 references

3. INTRODUCTION
 Skinput is a technology which uses the surface of
the skin as an input device.
 To capture this acoustic information , they
developed a wearable armband that is easily
removable.
 It was developed by Chris Harrison, Densely Tan,
and Dan Morris of the Microsoft Research's
Computational User Experiences Group(MRCUEG)

4. CONTINUE……
 Skinput allows the user to simply tap their skin in
order to control audio devices, play games, make
phone call.
 It uses the sensors to determine where the user
taps on their skin.
 Its first public appearance was at Microsoft's Tech
Fest.

5. PRINCIPLE OF SKINPUT
 It listens to vibrations in your body.
 Skinput also responds to the various hand
gestures.
 The arm is an instrument.
Arm band detects the acoustic signals and
convert them to electronic signals which easily
enable the users to perform simple tasks as
browsing through a mobile phone menu,
controlling portable music players, etc…

6. HOW MAKE IT WORK

7. PICO- PROJECTOR
 very small projector, basically used in gadgets
 Pico projector applies the use of projector in a hand held
device.
 It is also known as pocket projector or mobile projector.
The system comprises two main parts:
 The Laser light source
 The Scanning mirror

8. Bio-Acoustics
Study of sound waves inside living body.
When a finger taps the skin, several distinct
forms of acoustic energy are produced.
Longitudinal Waves
Transverse Waves

9. Longitudinal Waves:
These waves travel through the soft tissues of the arm,
which can respond to the mechanical vibrations by tapping on
a rigid body.
TransverseWaves:
Tapping on soft regions of the arm creates higher amplitude
transverse waves.

11. BIO- ACOUSTICS (SENSING)
 These signals need to be sensed and worked
upon.
 This is done by wearing the wave sensor
arm band.

12. BLUETOOTH
 Wireless technology for exchanging data over short
distances
 Bio acoustic sensors are connected to mobile
bluetooth

13. HOW IT WORKS
 In Skinput, a keyboard, menu, or other graphics are
beamed onto a user's palm and forearm from a
pico projector embedded in an armband.
 An acoustic detector in the armband then
determines which part of the display is activated
by the user's touch.
 Their software matches sound frequencies to
specific skin locations, allowing the system to
determine which “skin button” the user pressed.

15. PROCESSING: Model

16. ADVANTAGES
 Easy to work
 No need to interact with the gadget directly.
 Don’t have to worry about keypad.
 People with larger fingers get trouble in
navigating tiny buttons and keypads on mobile
phones. With skinput this problem disappears.
 The body is portable and always available, and
fingers are a natural input device.

17. DISADVANTAGES
•Though the band seems easy enough to slip on, many
people would not wear a very big band around their arm
for the day.
•Not enough research has been conducted on this product
to test the possible skin diseases or types of cancer, one can
get from using this product.
• very high cost

18. • Mobile
• Gaming
• I-pods
APPLICATIONS

19. SKINPUT IN FUTURE
 The most profound achievement of Skinput is
proving that the human body can be used as a
sensor.
 A person might walk toward their home, tap their
palm to unlock the door and then tap some virtual
buttons on their arms to turn on the TV and start
flipping through channels.
 Extensive Research is going on Currently on
Skinput to make the armband more smaller.
 Extend accuracy level.

20. CONCLUSION
 Skinput allows the human body as an input surface.
 It describes a novel, wearable bio-acoustic sensing
array that we built into an armband in order to
detect and localize finger taps on the forearm and
hand.
 This system performs well even when the body is
in motion.

21. REFERENCES
 http://research.microsoft.com/en.us/um/redmond/group
s/cue/skinput Official Home Page of Skinput.
 http://www.chi2010.org
 http://www.chrisharrison.net/projects/skinput Personal
Homepage of Chris Harrison.
 http://research.microsoft.com/en-us/um/people/dan
Homepage of Dan Morris.
 Research.microsoft.com/enus/people/dan
 Research.microsoft.com/enus/people/desney
 microsoft.com
 wikipedia.com