Camera phones could also be used to store and share documents.
Scientists working at
the Xerox Research Centre Europe (XRCE)
have developed new imaging technology that could turn mobile phones first into
portable document scanners and eventually into devices you could use to acquire,
store, read, print, and share documents.
Xerox's patented mobile document imaging software enables camera phones to
better manage the poor lighting, image distortion, and other challenges
associated with processing images captured by digital cameras in hostile
environments. "We saw the potential of mobile telephones as a vehicle for
advanced imaging technology from the outset," says Christopher Dance, senior
scientist and image processing manager for XRCE. "However, we had to wait for
mobile phone technology to catch up so that the cameras integrated on them were
of a high enough resolution. It wasn't until this year, with the advent of
mega-pixel mobile camera phones, that we saw a potential route to market for our
technology." This new technology would allow employees working remotely to
capture information from handwritten notes, documents, screens, whiteboards,
etc., and transmit it without delay.
The
software works through a four-step process. First you take the photo, then you
apply Xerox software to correct for blurring. Next, you convert the image to
black and white and eliminate shadows and reflections. Use color saturation and
white balance contrast techniques for handwriting and colored text. Finally, you
compress the image. Xerox uses a G4 fax compression format that produces images
one-tenth the size of JPEG, the standard for mobile image transmission. The file
can then be delivered via Bluetooth wireless technology, multimedia messaging,
or fax.
"The
ability to capture the image in a mobile environment, and then transmit that
image while on the move, is just the beginning," said Dance. "Once this is
achieved, then in the future we will be able to apply other Xerox document
technologies such as indexing, retrieval, or summarization. Ultimately we will
be applying business-to-business document functions to the basic consumer
'snapshot' technology and, in doing so, will have changed the way in which
people communicate."
The
technology is available for potential applications through Xerox's licensing
agent, IPValue Management Inc. For
more information about the Xerox Innovation Group, visit www.xerox.com/innovation.