THE HUMAN BODY AS TOUCH SCREEN - PowerPoint PPT Presentation

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THE HUMAN BODY AS TOUCH SCREEN

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Technology Used Skinput, the system is a combination of two technologies: the ability to detect the ultra low frequency sound and the pico projectors. – PowerPoint PPT presentation

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Title: THE HUMAN BODY AS TOUCH SCREEN


1
THE HUMAN BODY AS TOUCH SCREEN
  • Presented by-
  • Suraj Duhan
  • LC08570
  • EECE-7th sem

2
CONTENTS
  • Abstract
  • Introduction
  • What is Skinput
  • Principle of skinput
  • How it works
  • Advantages
  • Applications
  • Future Implications
  • Conclusion

3
ABSTRACT
  • Devices with small sized have some limitations.
  • Since cant make buttons and screens larger
    without loosing benefit of small sized.
  • The main reason for appropriating the Human body
    as an input device are
  • Easily accessible by hands.

4
Introduction
  • Skinput allows the user to simply tap their skin
    in order to control audio devices, play games,
    make phone calls.
  • It uses the sensors to determine where the user
    taps on their skin.

5
What is Skinput
  • Giving input through skin.
  • Was developed by Chris Harrison (Mellon Univ.)
  • Skinput turns the body into a touch screen
    surface.

6
Principle of Skinput
  • It listens to vibrations in your body.
  • Skinput also responds to the various hand
    gestures.
  • The arm is an instrument.

7
Technology Used
  • Skinput, the system is a combination of two
    technologies the ability to detect the ultra low
    frequency sound and the pico projectors.
  • Pico projector applies the use of projector in a
    hand held device.
  • An acoustic detector detects the ultra low
    frequency.

8
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9
Pico Projector
  • It is also known as pocket projector or mobile
    projector.
  • The system comprises three main parts
  • The Laser light source
  • The Combiner optics
  • The Scanning mirror

10
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

11
  • Longitudinal Waves
  • These waves travel through the rigid tissues of
    the arm, exciting the waves, which can respond to
    the mechanical vibrations by tapping on a rigid
    body.
  • Transverse WavesTapping on soft regions of the
    arm creates higher amplitude transverse waves.

12
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13
Bio-Acoustics Sensing
  • These signals need to be sensed and worked upon.
  • This is done by wearing the wave sensor arm band.

14
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15
Percent Accuracy
16
Advantages
  • No need to interact with the gadget directly.
  • Dont 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.

17
Applications
  • Mobile
  • Gaming
  • I-pods
  • An aid to paralyzed persons.

18
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19
Future Implications
  • With small sized Pico-projectors, Skinput
    oriented systems, are an emerging trend.
  • Research is carried out for smaller wrist watch
    sized sensor arm band.

20
Conclusion
  • I have presented the approach to appropriating
    the human body as an input interface.
  • I described a wearable bio-acoustic array used to
    detect and localize finger tap on the hand and
    the forearm.
  • This system performs well even when the body is
    in motion.

21
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22
THANK YOU
  • Presented by-
  • Suraj Duhan
  • LC08570
  • EECE-7th sem
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