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Smartphone Touchless ScreenPrepared by:
Abdelmounaim Dahbi
ELG 5121 / CSI 7163AMultimedia Communications
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Outline
Introduction
Objective
Background
Orientation Based Touchless Screen
Magnetic Field Based Touchless Screen
Challenges
Conclusion
Future Research
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Introduction
• Calling vs Email, Internet, Digital Camera, Navigation Possibilities
• Smartphones Have a Mobile Operating System, Full Qwerty Keyboard (Hardware or Software), Synchronize with email server, view and sometimes edit documents..
• Windows Mobile, iPhone OS, Google’s Android, Symbian OS, RIM’s BlackBerry, Palm’s WebOS, Linux
• IBM designed the first smartphone in 1992 (Simon)
• Motorola demonstrated the first cell phone, 19 years before the first smartphone, in 1973.
Smartphone vs Average Cell phone
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IntroductionSmartphone Market Penetration
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Objective
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Background
Worldwide Smartphone Sales to End Users by Operating System in 1Q10 (Thousands of Units), according to Gartner
50%
800%
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Background
Share of 2010 Q2 smartphone sales to end users by operating system, according to Gartner
Android Platform..
2010 Q3: 43.6%
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Background
• Android
• Mobile operating system developed by Android Inc;
• Based upon a modified version of the Linux kernel;
• A corresponding open-source project led by Google;
• Android has been available under a free software / open source license since 21 October 2008;
• Google published the entire source code under an Apache License (vendors can add proprietary extensions without submitting those back to the open source community ).
No industry player can control or restrict innovations
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Orientation Based Touchless ScreenIdea
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Orientation Based Touchless Screen
Approach
Android Orientation System:
- Origin in bottom left
- z = Azimuth, rotation around the Z axis (0<=azimuth<360)
- x = Pitch, rotation around X axis (-180<=pitch<=180)
- y = Roll, rotation around Y axis (-90<=roll<=90)
All angles are in degrees.
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Orientation Based Touchless Screen
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Magnetic Field Based Touchless Screen
Earth Magnetic Field
Idea
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Magnetic Field Based Touchless Screen
Idea
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Magnetic Field Based Touchless Screen
Idea
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Magnetic Field Based Touchless Screen
Idea
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Magnetic Field Based Touchless Screen
Idea
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Magnetic Field Based Touchless Screen
Approach
Android Magnetic Field System:
- Origin in bottom left
All values are in micro-Tesla (uT) and measure the ambient magnetic field in the X, Y and Z axis
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Challenges
• The magnetic field might affect the compass hardware
• The magnetic field might have an effect on the storage memory of the smartphone
• The app works better when the magnetic field is clearer (long enough magnet)
• Paradoxes: magnet vs smartphone…
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Conclusion
• Two Android apps have been developed to implement the two proposed touchless screen ideas
• Orientation based Touchless Screen
• Magnetic Field based Touchless Screen
• The two apps have been loaded into a real smartphone (HTC Legend) and work fine.
• The effect of gravity and the effect of wind…
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Future Work
• Scrolling of the object (Window, List, Grid…) which has the focus;
• Find a way to make the app work with a very small magnet...
• Other Alternatives of touchless Screen (Bluetooth: More accurate than the magnet, Voice Recognition, Gesture Recognition)
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Thank you!
