*****For immediate use August 27th, 2002
NEC Develops JPEG 2000 High-Speed Contents Distribution Technology
- Enables easy viewing of large-scale full-color still images even in a mobile environment -
TOKYO, August 27, 2002 - NEC Corporation ("NEC")
(NASDAQ: NIPNY, FTSE: 6701q.l, TSE: 6701 today announced the successful development
of a new content distribution/viewing technology that enables large-scale, full-color,
superior-quality still images to be viewed in any environment-workplace, home
Using the next-generation picture format JPEG 2000 (Note 1)
to halve the volume of conventional JPEG (Note 2) image data,
NEC has succeeded in realizing A4-size still images that can be leafed-through
at a rate of 1 to 3 pages per second. Also, by tailoring the display resolution
of the distributed images to match the connection speed and screen size, pictures
can be viewed comfortably in any environment, from broadband-connected PCs to
mobile PDAs (Note 3).
||Practical and efficient compression/distribution of images with half the data
volume of JPEG realized by a combination of NEC's original high-precision OCR
(Note 4) technology and the new JPEG 2000 format.
||Text-and-graphics contents can be searched via keywords thanks to the inclusion
of high-precision OCR and OCRed text search engines.
||The resolution of each image to be distributed can be tailored to the required
processing capacity and connection speed.
Achievements of new technology:
||A4 documents can be leafed-through quickly in outline form (1 to 3 pages per
second) even with a 64 kbps communication band. Also, large-sized contents can
be downloaded piecemeal and displayed freely at the required resolution. In this
way, newspapers, color magazines, and other contents conventionally difficult
to view in a mobile environment can be displayed quickly via the Internet.
||Text from voluminous documents can be searched efficiently using the text
keyword search function. Moreover, the search results are displayed as original
text graphics rather than character recognition results, providing a comfortable
viewing environment free from the negative effects of erroneous recognition.
||The costs involved in preparing contents for each specific viewing environment,
which has been a major problem in contents distribution until now, can be substantially
reduced because images can be created efficiently from the same JPEG 2000 data,
at a size that suits the application in the terminal or communication environment.
As the increasing popularity of broadband network connection and the mobile
environment move us ever closer to the realization of a ubiquitous computing society,
the ability to use information in a number of diverse communication environments
has become a must. This imperative, however, has brought with it the following
||Downloading still images using the conventional systems is time consuming
and denies users easy access to information. A technology that enables voluminous
graphical contents to be downloaded quickly in both broadband and mobile environments
is therefore required.
||Having to prepare contents separately for each specific viewing environment
raises the cost of contents creation. Furthermore, if the font and language do
not match on both the distribution and terminal sides, documents cannot be displayed
as intended by the creator. The solution to these problems rests in the establishment
of an internationally standardized image contents distribution environment in
which terminals with various display capabilities can be supported by a single
NEC's JPEG 2000-OCR composite technology aims to solve these problems and make
a major contribution to the realization of next-generation Internet-based information
management and viewing systems. Future plans in this area include enhanced research
and development culminating in the commercialization of products that exploit
the diversity of this technology, including text-and-graphics distribution systems
for newspaper companies.
NEC introduced this new technology at the IEEE Workshop on Knowledge Media
2002 seminar held by the Communications Research Laboratory in Seika-cho, Kyoto
Prefecture, on July 10.
About NEC Corporation
NEC Corporation (NASDAQ: NIPNY) is a leading provider of Internet solutions, dedicated
to meeting the specialized needs of its customers in the key computer network
and electron device fields through its three market-focused in-house companies:
NEC Solutions, NEC Networks and NEC Electron Devices. NEC Corporation, with its
in-house companies, employs more than 140,000 people worldwide and saw net sales
of approximately $39 billion in fiscal year 2001-2002. For further information,
visit the NEC home page at http://www.nec.com/.
||Next-generation picture format used to compress images more efficiently.
International standard ISO/IEC-15444. Supports both reversible and non-reversible
compression with a compression performance 20% higher than JPEG. Other features
such as easy control of transmitted images make this format ideal for high-precision,
high-quality image applications. JPEG 2000 is not compatible with conventional
||Stands for Joint Photographic Experts Group. JPEG is the representative
picture format used to efficiently compress images such as photographs. International
||Stands for personal digital (or data) assistant.
Indicates a small mobile terminal or electronic notebook with schedule/address
management and memo functions.
||Stands for optical character recognition (or reader). Indicates
a process or device used to optically read printed characters and output them
as character code.