On the Future of Mobile Phones as the Heart of Community-Built Databases - Community-Built Databases: Research and Development - page 280

Fig. 11.6 Example of a
possible application using the
mobile phone as an interface
to a community-built
database of objects and
persons in the real world
Fig. 11.7 Recognizr is an easy-to-use application to retrieve information from social networks
such as LinkedIn from a mobile phone using a picture or camera capture as input to the system
In general terms, the system displays information about what is being captured
by the phone camera. The user focuses the camera on the objects of interest. When
the camera captures an object it is recognized and this will display information
about it using augmented reality techniques. The MobiTag system works by
following four steps (see Fig. 11.8 ).
The first step captures the image and detects the presence of objects of interest
(a good example would be a topic). To resolve this point, it could use a preproces-
sing algorithm to know the object's shape, cut out the image by removing irrelevant
information, and isolate the object in a new image.