The increase in demand for mobile phone,
leading to mobile phone being a vital part of our everyday activities. Hence enhancing
communication between people from divers’ parts of the world.
According to Paula Vicente, Elizabeth
Rics and Maria Santos of ISCTE-Lisbon University Institute, during a mobile phone survey on the 18th
July, 2008, the increase in mobile phone penetration is stimulating a trend
towards the use of mobile phones to supplement.
For the first time ever there
are more gadgets in the world than there are people, including a growing number
that only communicate with other machines, according to data from digital
analysts at GSMA Intelligence.
The number of active mobile
devices and human beings crossed over somewhere around the 7.19 billion mark.
As of today, GSMA’s real-time
tracker puts the number of mobile devices at 7.22 billion whilst the US Census
Bureau says the number of people is still somewhere between 7.19 and 7.2
Gadgets like tablets,
smartphones and not-so-smart phones are multiplying five times faster than we
are, with our population growing at a rate of about two people per second, or
“No other technology has
impacted us like the mobile phone. It’s the fastest growing manmade phenomenon
ever — from zero to 7.2 billion in three decades,” said Kevin
Kimberlin, Chairman of Spencer Trask & Co.
Smartphones are suitable and valid
in every way for human use, but using of smartphone technologies to their
potential requires some key functionalities like making phone calls, browsing
the web, sending sms and media privileged functionalities and to be able to use
most of the above functionalities, one is required to have credit or airtime on
his or her mobile phone, making airtime or credit recharge a vital part of the
Airtime or credit recharge as
agreed to by a lot of people, especially grownups is frustrating and stressful sometimes
as there can be some challenges such as network problems, leaving some of the
pin code out, etc.
An android based mobile credit
or airtime application to aid android phone users in a simple and effective
recharge technique would go far to eradicate most of the challenges people face
when recharging their mobile phone with credit or airtime. The application
would make use of OCR technology to function.
OCR has gained a higher level
of popularity from computer scientists and lovers of I.T as well as the general
public over the years since its invention in 1914 by Emmanuel Goldberg,
due to its applicable nature in various fields of study. Until a few decades
ago, research in the field of Optical Character Recognition (OCR) was limited
to document images acquired with flatbed desktop scanners. The usability of
such systems is limited as they are not portable because of large size of the
scanners and the need of a computing system. Moreover, the shot speed of a
scanner is slower than that of a digital camera. But now, with the advancement
of processing speed and high internal memory of hand -held mobile devices such
as high- end cell -phones, Personal Digital assistants (PDA), smart phones,
iPhones, iPods, etc. has given a new direction to OCRs.An app called „Google
Translate? has been launched for android phones which is one of the best app
based on OCR.
OCR is a simple machine with
different parts that works according to the programming. At first, a typical
OCR consists of an optical scanner that scans the analog document .Then each
symbol and character is extracted through a location segmentation process. The
next stage is of preprocessing of scanned image. After that in the next stage i.e.
feature extraction, the characters are further extracted according to the
required dimensions. At the end in the last stage of recognition post
processing, the characters are reconstructed with reduced noise according to
the original text. Fig.1 represents the stages of an OCR.