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Research on an
N-ary Morphological Operator for removal of
image segmentation boundary errors. See recent applications of our
N-ary morphology methods to
detection of breast cancer (2010) and to
prostate imaging (2010). The proposed N-ary
morphological operator resembles a binary erosion and
dilation for N-ary images. See our paper describing
the proposed
N-ary Morphological Operator.
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Research on Single-Chip
Frequency-Synthesized Radio Frequency Spectrum
Analyzer incorporating a Successive Detection
Log Video Amplifier. This work is targeted at cognitive radio applications,
where next-generation radio systems will have to
measure and adapt to the local frequency spectrum. See
recent paper on
Single-Chip Frequency-Synthesized Radio Frequency
Spectrum Analyzer. Also, see a related paper on
a Detector
Log Video Amplifier paper.
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Research on
Left-Handed Extensions of Maxwell's Equations for
Metamaterials. Left-handed metamaterials are
commonly analyzed by using frequency-dependent
parameters for negative permittivity and negative
permeability. An alternative approach is presented
where both right-handed and left-handed behavior are
supported by augmenting Maxwell's equations with
constant parameters and additional terms. See Left-Handed
Extensions of Maxwell's Equations. and a related
paper A
Delay Line Discriminator for IFM Using a Left-Handed
Delay Line.
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Tutorial on
Cadence and Agilent ADS RFIC Design . A
tutorial on using Agilent ADS and Cadence to design
RFIC's (Radio Frequency Integrated Circuits).
Schematic entry and simulation are done in Agilent
ADS, and integrated circuit layout is done in Cadence.
(Primarily for my radio frequency design courses.)
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Research on
Rayleigh/Mie Ehnancement of Blackbody Radiation
in Nanoscale Devices to shape the spectrum of
blackbody radiation by suppressing blackbody emission
at long wavelength and enhancing blackbody radiation
at short wavelength. The basic notion is the creation
of a "better light bulb" by suppressing heat loss
(infrared emission) and by enhancing visible light
emission. See recent paper on Rayleigh/Mie
Ehnancement of Blackbody Radiation.
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Research on
"serious games." Video games and game engines
can be used to develop educational games, to train
employees and emergency personnel, to manipulate or
visualize data, to simulate robotic systems, and to
prototype complex systems. See a simple Space Shuttle
game-based simulator, and my Advanced Computer
Graphics course.
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Research on
patented "super-linear transistors" for
wireless RF integrated circuits (RFIC) consisting of a
PMOS FET in parallel with an NMOS FET. (see patents
below)
IEEE RFIC
2005 paper on "super-linear transistors."
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Java/Netbeans tutorial added. Quick tutorial
on how to use Java/Netbeans to create an program to
display images, write files, paint, etc. See also
example Java/Netbeans program
ImgProJv41 and a simple Introduction to
UNIX and C++.
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Research on
patented linearization methods for wireless
RF integrated circuits (RFIC). See 2009 paper on
4-stage methods and US 6,794,938
patent cover sheet and US
6,794,938 full patent for linearization
methods, IEEE IMS
2003 paper on linearization methods and a recent
thesis on these linearization methods.
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Research on
patented Built-In Self-Test (BIST) methods for
digital circuits including SRAM. In particular: 1)
digital circuits are tested with voltages between
normal logic level voltages, and 2) digital circuits
are tested by inducing controlled-width power supply
current pulses (controlled-Iddt).
US 6,833,724
patent cover sheet and US 6,833,724
full patent for BIST.
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Research on a
mixed-signal fault simulator for mixed-signal
Built-In Self-Test (BIST)
Sponsored by DARPA NeoCAD project, and managed by
Sensors Directorate of the Air Force Research
Laboratory, USAF, Wright-Patterson AFB.
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RF / Wireless Engineering
Laboratory for radio frequency and microvave
systems and devices. Click on the image to the left to
find more information about this topic.
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The development of Mixed-signal
Integrated Circuits and design tools. Click on
the image to the left to find more information about
this topic.
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Agilent ADS
design software lab for radio frequency design. Click
on the image to the left to find more information
about this topic.
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Ground penetrating
radar (GPR) paper .
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An image texture-segmentation program called teXan. Click on the
image to the left to find more information about this
topic.
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A general image processing program called X2D . Click on the image
to the left to find more information about this topic.
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Multiresolution Design of Gabor Filter Banks for
Texture Segmentation research
summary. This novel method enables simultaneous
design of both
- a set of tuned Gabor filters
- and an accompanying Bayesian classifier.
Click on the image to the left to find more
information about this topic.
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Lung segmentation
and OpenGL rendering of segmented airway. Click on the
image to the left to find more information about this
topic.
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An audio signal-processing program called Xvox . Click on the
image to the left to find more information about this
topic.
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Favorite verse: Eph 2:8
Links to my Papers/Publications and US Patents
