The document describes Skinput technology, which uses the surface of the skin as an input device. Skinput was developed by researchers at Microsoft to allow users to control devices by tapping on their skin. It works by using sensors in an armband to detect vibrations and acoustic signals caused by taps and gestures on the skin. This allows the user to perform tasks like making calls or controlling music just by tapping on projected interfaces on their arm, without directly touching a device. Potential applications include use by paralyzed individuals, in education, and for gaming. However, issues remain regarding cost, health effects, and wearability of the armband sensor.

1. NAGPUR INSTITUTE OF TECHNOLOGY,NAGPUR
DEPARTMENT OF COMPUTER SCI.& ENGINEERING
MASTERS OF TECHNOLOGY
In
Computer Sci.& Engineering
SESSION 2013-2014
M-Tech, 2nd-SEMESTER
A
PRESENTATION ON
“Skinput Technology"
BY:
Ms. Pooja Jagdish Pathane
GUIDED BY:
Prof. Jagdish Pimple
(Department of Computer Sci.& Engineering )

2. CONTENT
Introduction
Principle
How it works
Implementation
Application
Advantage
Disadvantage
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 non-invasive and easily
removable.
 It was developed by Chris Harrison, Densely Tan, and
Dan Morris of the Microsoft Research's Computational
User Experiences Group(MRCUEG)
CONTINUE……

4.  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
2010

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, making calls, 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.
 The system comprises three main parts:
 The Laser light source
 The Combiner optics
 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.
1. Longitudinal Waves
2.Transverse Waves
An acoustic detector detects the ultra low
frequency
These waves form the integral part of the
whole concept of skinput.

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

11. 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.

12. PROCESSING: Model

14. IMPLEMENTATION
IMPLEMENTATION ON PARALYZED PERSON
OR PHYSICALLY DISABLE PERSON.
 If a person is paralyzed or physically disable we can
implement this technology. The feature of skinput
technology provides a projected graphical interface on
the skin, so the person who is paralyzed or physically
disable they can use it easily like making a call, playing
game, control music player application etc.

15. IMPLEMENTATION IN EDUCATION SYSTEM
 Through the help of Skinput technology we can
implement in education system like we can use
calculator or browsing through a mobile phone etc...

16. APPLICATIONS
 Mobile
 Gaming
 I-pods

17. USING FINGERS AS CONTROL PAD OF GAME
 Through Skinput we can play games with just the
movement of our hands. This will introduce a totally
new era of gaming.

18. Making a Phone Call Using Skinput
 We can turn our arm into a cellphone It will be
possible to make calls by just typing numbers that flash
on your forearm. All other functions can also be
performed using Skinput. We can also increase or
decrease the volume or change the track of our music
players like the i-pod without actually touching the
gadget.

19. ADVANTAGES
 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.

20. 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.
 This technology might start up at very high cost which
will not be affordable for the common man.

21. 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.
 Incorporate More Devices with This System.
 Extend accuracy level.

22. 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.

23. REFERENCES
microsoft.com
wikipedia.com
seminarsonly.com
http://www.chrisharrison.net/projects/ski
nput/SkinputHarrison.pdf

24. Thank You