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MagBoard: Magnetic-based Ubiquitous Homomorphic Off-the-shelf Keyboard | | Heba Abdelnasser
; Moustafa Youssef
; Khaled A. Harras
; | | Date: |
1 May 2016 | | Abstract: | One of the main methods for interacting with mobile devices today is the
error-prone and inflexible touch-screen keyboard. This paper proposes MagBoard:
a homomorphic ubiquitous keyboard for mobile devices. MagBoard allows
application developers and users to design and print different custom keyboards
for the same applications to fit different user’s needs. The core idea is to
leverage the triaxial magnetometer embedded in standard mobile phones to
accurately localize the location of a magnet on a virtual grid superimposed on
the printed keyboard. This is achieved through a once in a lifetime
fingerprint. MagBoard also provides a number of modules that allow it to cope
with background magnetic noise, heterogeneous devices, different magnet shapes,
sizes, and strengths, as well as changes in magnet polarity. Our implementation
of MagBoard on Android phones with extensive evaluation in different scenarios
demonstrates that it can achieve a key detection accuracy of more than 91% for
keys as small as 2cm*2cm, reaching 100% for 4cm*4cm keys. This accuracy is
robust with different phones and magnets, highlighting MagBoard promise as a
homomorphic ubiquitous keyboard for mobile devices. | | Source: | arXiv, 1605.0284 | | Services: | Forum | Review | PDF | Favorites | |
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