FUJITSU LABORATORIESAll Rights Reserved, Copyright Fujitsu
Laboratories Ltd. 1/1
July, 2005AbstractWe have developed a new user interface that
interlinks printed media (real space), humans, and electronic
information (virtual space). Electronic information can be accessed
by using portable equipment to read the visible codes
(one-dimensional [JAN]/two-dimensional [QR] codes), and invisible
codes (steganography for printed materials) printed on paper. This
technology, and its recognition, can be incorporated into multiple
platforms such as cellular phones, PDAs, and PC/UNIX servers.
Potentially, this technology can be applied to a wide ranges of
applications, both personal and corporate.
TechnologyCode recognition and automatic code extraction: We
have developed a high-speed code recognition function that offers
stable performance in many environments, even in the dark. It can
be applied to multiple platforms including cellular phones, PDAs,
PCs, and UNIX servers. The processing time is less than one second,
even on a cellular phone or PDA. Users can thus use these devices
to capture encoded data.Invisible data embedding: Twelve-digit
numerical data that is equivalent to the JAN code can be embedded
in a printed color image. This technology embeds data by leveraging
the characteristics of the human eye, which exhibits variations in
its sensitivity to color and size. This makes it possible to avoid
any degradation in image quality, like that which occurs when
digital watermarking is used. This enables users to access
information from a printed image that exhibits no degradation.
Application Examples Prescriptions: The use of QR code
recognition allows slip processing to be processed quickly and
accurately. The code
is printed as a part of the prescription when issued by a
hospital, and then read with a scanner or a general-purpose camera
at a pharmacy.
Information magazines, pamphlets: Invisible data is embedded in
an image of a location, etc., published in a magazine. Detailed
information such as a map or event information can be obtained
simply by reading the image with a cell phone camera.
Traceability: Invisible data is embedded in a printed image of a
product (e.g. a food product) on the package or point-of-sale card.
By using a cell phone camera to read the printed picture,
product-related information (e. g. raw materials, the producer, and
the place of production) can easily be obtained.
Steganography example Multi-platform
Steganography- Code Recognition Technology
/ColorImageDict > /JPEG2000ColorACSImageDict >
/JPEG2000ColorImageDict > /AntiAliasGrayImages false
/DownsampleGrayImages true /GrayImageDownsampleType /Bicubic
/GrayImageResolution 300 /GrayImageDepth -1
/GrayImageDownsampleThreshold 1.50000 /EncodeGrayImages true
/GrayImageFilter /DCTEncode /AutoFilterGrayImages true
/GrayImageAutoFilterStrategy /JPEG /GrayACSImageDict >
/GrayImageDict > /JPEG2000GrayACSImageDict >
/JPEG2000GrayImageDict > /AntiAliasMonoImages false
/DownsampleMonoImages true /MonoImageDownsampleType /Bicubic
/MonoImageResolution 1200 /MonoImageDepth -1
/MonoImageDownsampleThreshold 1.50000 /EncodeMonoImages true
/MonoImageFilter /CCITTFaxEncode /MonoImageDict >
/AllowPSXObjects false /PDFX1aCheck false /PDFX3Check false
/PDFXCompliantPDFOnly false /PDFXNoTrimBoxError true
/PDFXTrimBoxToMediaBoxOffset [ 0.00000 0.00000 0.00000 0.00000 ]
/PDFXSetBleedBoxToMediaBox true /PDFXBleedBoxToTrimBoxOffset [
0.00000 0.00000 0.00000 0.00000 ] /PDFXOutputIntentProfile ()
/PDFXOutputCondition () /PDFXRegistryName (http://www.color.org)
/PDFXTrapped /Unknown
/Description >>> setdistillerparams>
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