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The Digital Media Research Group |
Communications Technology
The Digital Media Research Group (DMRG) is conducting
groundbreaking research, development, and commercialization of technology
in compression, digital signal processing, and digital rights management
involving all forms of digital media.
DYNAMAC Audio | DYNAMAC
Video | DYNAMAC Image | DYNAMAC
BioMed
The Sign 2 Project
DYNAMACŪ Audio
A digital audio sequence…
can be replaced by a new waveform
generated from a combined chaotic oscillation (CCO) matrix. This new sequence can be reproduced
using fewer bits than the original sequence, thereby achieving
compression. The better the match,
the better the quality. The picture
below shows an audio sequence segment compressed at 20:1.
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DYNAMACŪ Video
We have derived a method for
applying the DYNAMAC process for a combination of planar and sequential
compression.
We are utilizing the processes to
reduce the bandwidth required to transmit high definition television
(HDTV) signals over cable and wireless links. The solution is ideal for
video-on-demand services and video streaming.
The process also has a natural
digital rights management feature that scrambles the video if the proper
encoding key is not utilized.
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DYNAMACŪ
Image
The DYNAMAC process is applicable to
digital images, and provides performance that rivals the JPEG format.
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DYNAMACŪ BioMed
The DYNAMAC process is actually a
transformation; we call the D-transform, that operates on a digital
sequence. This transformation,
analogous to Fourier and Wavelet transforms, provide unique information
about the digital sequence it operates on. We have utilized this transformation on
biomedical images to provide further insight into the clinical analysis
of this data. Below is an example
of the analysis of two lung x-rays.
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The Sign2 Project
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The
Sign2 Project is a focused research and development effort whose
three-fold goal is to (a) further establish and enhance the body of
knowledge in physical movement/position to language transliteration and
(b) to conceptualize and engineer a prototype device that closes the
communication gap between signing and non-signing people, and (c) to
establish and build a database of statistical data from the prototype
useful to the research and development community.
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Communications
Technology
The LACT continues to develop new technologies for advanced
communications…
WiDR | RFID The ARTIS Project | FSWM
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WiDR
Wireless Digital
Repeater (WiDR) network for instantaneous communication in disaster
situations.
Recent natural and
man-made disasters have exposed a critical technological shortfall in the
way we are able to communicate and respond early and effectively in these
situations.
September 11, the Asian
Tsunami, Katrina, and Middle East
earthquakes all have clear communications failures due to:
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Power outages
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Infrastructure damage
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Many had working cell phones with no system to support
An instantaneous ad-hoc
wireless communications network is formed.
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RFID: The ARTIS Project
Automated Real-Time Inventory
System
The primary goal of ARTIS (Automated Real Time
Inventory System) project is to detect all the equipment available in
different adjacent rooms by just logging into a host system. For
achieving that, we employ an RFID system by incorporating passive RFID
tags on all the pieces of equipment. Each piece of equipment has an RFID
tag attached to it which has a unique serial number to distinguish from
one another. These tags are identified and read by interrogators which
are fixed in the rooms. Each interrogator employs an anti-collision
scheme either CDMA or TDMA technique so that it could receive the
information effectively in the presence of multiple responses from the
tags.
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Fourier Series Waveform Modulation
In
development…
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