Internet
Media Laboratory
URL: http://newmedia.khu.ac.kr
Director: Professor Doug Young Suh (ssuh@khu.ac.kr)
Research Overview
One of the goals of the NGI (Next Generation Internet) is
to serve as better networks for delivery of real time media.
Real time multimedia services include VOD (video on demand),
Internet video phone, digital broadcasting, and network game.
Since the Internet is being expanded to wireless networks
under harsh conditions, it is very important to guarantee
media quality under varying network environments. In order
to solve the problems, we try to develop novel technologies
of video compression and traffic engineering. By-products
of these efforts include killer applications and contributions
to the international standard organizations.
Ongoing Projects
Cross Layer Quality of Service Optimization for real time
multimedia
Design of MPEG-21 file format
Simulation of MPEG-21 DIA (digital item adaptation)
Delivery of video over cdma1x network
International standard activities in MPEG Meeting
Computer System Architecture and
VLSI Design Laboratory
URL: http://vlsi.khu.ac.kr
Director: Professor Won Kyung Cho (chowk@khu.ac.kr)
Associate Director: Assistant Professor Jinsang Kim (jskim27@khu.ac.kr)
Research Overview
Our research focuses on SoC (system-on-a-chip) designs; SoC
design methodologies, reconfigurable digital system designs,
low-power designs, and efficient arithmetic units designs.
Students in our laboratory are divided into two sub-groups:
communication research sub-group and image & video research
sub-group. For efficient SoC designs, usually system aspects
are investigated in advance before SoC designs. Therefore,
students who want to study at our laboratory are strongly
recommended to have knowledge about both digital VLSI systems
design and top-level applications such as OFDM, ECC, SDR,
image, and video processing algorithms. Our laboratory has
lots of research facilities including Kyung Hee - Davan ASIC
design center and front-end and back-end EDA tools for SoC
designs. We developed an ECC chip, a low-power DCT chip, a
low-power motion estimation chip, NTSC decoder chip, pattern
recognition chip, and efficient arithmetic chips. Such modules
will be integrated into sub-components for mobile and image
& video SoCs which we are actively investigating.
Ongoing Projects
Space payload development for Korean science spacecraft II
Development of luminance and chrominance signal separation
chip for NTSC decoding
Reconfigurable hardware platform design for SDR (software
defined radio) applications
Fast video processing hardware architecture using advanced
object extraction and motion estimation methods
Laser Photonics Laboratory
URL: http://web.khu.ac.kr/~omil/default.htm
Director: Professor Yong Pyung Kim (ypkim@khu.ac.kr)
Research Overview
We are investigating the generation, controlling, and application
technologies of the coherent light for the next generation
of the optical information era. Our ultimate objectives of
the research include: 1) realization of the generation technology
of novel lasers; 2) realization of the controlling technology
of ultrashort pulse, monochromatic, broadband, and stabilized
lasers; 3) creation of the application technology of novel
lasers for optical communication, bio, and medical fields.
Ongoing Projects
Development of solid-state dye laser system for medical application
Development of excimer lamp pumped by micro-discharge.
Theoretical study on light scattering and absorption in human
tissues
Theoretical study on the generation of ultrashort pulse lasers
Development of optical coherent tomography system for medical
SoC Design and Computers Laboratory
URL: http://soclab.khu.ac.kr
Director : Professor Yunmo Chung (chung@khu.ac.kr)
Research Overview
Our research interests include SoC (System on a Chip) design
and computer applications for Internet and parallel processing.
Especially our research interests are focused on System-level
SoC design with high level hardware description languages
such as VHDL, Verilog-HDL, and C/C++. In addition, we study
32-bit ARM processor architecture, hardware modeling with
FSM, Embedded system, RTOS, reconfigurable system architectures,
FPGA and SOPC design, and ubiquitous computing. As application
fields we consider wavelet transform, encryption algorithms,
audio systems, and display systems.
Ongoing Project
Design of Serial Speaker Connection System for Multi-channel
Audio Systems
Development of Serial Light Control System
Development of Wireless Speaker Connection System
VHDL Modeling with FSM
Spatial Data Mining
Optical Signal Processing Laboratory
URL: http://holo.khu.ac.kr
Director: Professor Woon Sik Baek (wsbaek@khu.ac.kr)
Research Overview
Our research focuses on optical signal processing in various
applications. 1) We develop the diffuse optical tomography
system which is a new modality to imaging in vivo (particularly
breast cancer and brain tumor) non-invasively using near-infrared
light source and detector arrays. The goal of the DOT system
is imaging the function and metabolism in vivo with information
of optical scattering and absorption of biological tissue
predicted by forward solver. 2) We also develop image reconstruction
algorithm which is optimized for the DOT system. 3) We develop
the external cavity diode laser system for optical memory.
4) We develop signal processing for the digital holographic
data storage system. 5) We develop computer generated holograms
for information security.
Ongoing Projects
Development of diffuse optical tomography system for medical
imaging in vivo.
Development of the regularizing optimization algorithm for
image reconstruction.
Development of external cavity diode laser system for optical
memory.
Computer Vision and Digital Image
Processing Laboratory
URL: http://kvision.khu.ac.kr
Director: Professor Young Tae Park(ytpark@khu.ac.kr)
Research Overview
Computer vision is aimed at realizing and implementing human
intelligent decision making process based on visual information
with computers. As a core technique for automation, its applications
include diverse fields such as automatic target recognition
and tracking systems (ATR), biometric recognition, intelligent
transport systems(ITS), home and office automation, factory
automation, and robot vision. For the realization of intelligent
visual information processing, the Computer Vision Laboratory
has been dedicated to research on image segmentation, feature
extraction, classification, image matching, neural networks,
3D image modeling, content-based image retrieval, ITS, and
parallel processing systems. Recently, the license plate recognition
algorithm and the vision-based traffic monitoring system have
been implemented successfully for commercial use. Also research
on human face recognition and fingerprint recognition systems
are being carried out. Rapid progress on computing power made
the real-time processing of vision algorithms feasible, so
that its application areas have been growing fast. Students
willing to major in computer vision are required to have profound
understanding of and experience with C++ language.
Ongoing Projects
Development of license plate recognition algorithm
Development of vision-based traffic monitoring system
Development of human face recognition system
Development of finger-print recognition system
Microwave & Ultrasonic Laboratory
URL: http://web.khu.ac.kr/~wave
Director: Professor Gye Suk Jun (gsjun@khu.ac.kr)
Research Overview
Major research focuses at MU(Microwave & Ultrasonic) Lab
are to develop and design novel components -filter, oscillator,
amplifier, antenna, - in microwave and millimeter wave. We
also research the characteristic analysis of the electromagnetic
structures and integrate the sub-system such as RADAR, beam-forming
system. For ubiquitous computing we also develop the RFID(Radio
Frequency IDentification) system in UHF to apply the specification
of AutoID. In addition to the microwave field, we investigate
the scanning system and digital image processing system for
detecting defects in materials by using ultrasound.
Ongoing Projects
A structure analysis of the PBG(Photonic Band Gap) and DGS(Defected
Ground Structure) in microwave frequency
Development of a low-pass filter using DGS
Development of a band-pass filter with attenuation pole at
stop-band using DGS
A study on performance improvement of RFID Transponder Antenna
Development of a direct conversion RF module for UHF RFID
system
Digital System & Computer Network
Laboratory
URL: http://web.khu.ac.kr/~dscn
Director: Professor Dae Young Lee (dylee@khu.ac.kr)
Research overview
Our research focuses on Digital Image Processing and Computer
Network in the newest field of intensive industrial society.
1) As the digital era keenly needs copyright protection, we
are developing Watermarking method. 2) We are also developing
security and intrusion detection systems on the Internet and
other networks. 3) To meet the demands of the wireless Internet
era, we are developing Mobile IP, Wireless Lan, and Wireless
TCP that are at the core of wireless communication. 4) Our
research also includes Network Traffic Measurement.
Ongoing Projects
Development of Management System for Protection of Text Database.
Development of Implement of Policy Based Security Management
in Active Network.
Fiber Optics Laboratory
URL: http://web.khu.ac.kr/~yhyh
Director: Professor Yunhae Yeh (yhyh@khu.ac.kr)
Research Overview
All the research efforts are focused on fiber optic sensors,
fiberoptic telecommunication components and subsystems. In
the telecommunication area, the tunable fiberoptic filter,
which plays a key role in the DWDM technology, and subsystems
for optical channel monitoring are the main focus. Fiber optic
sensors, which are believed to be the ideal transducers for
civil structural monitoring and military applications, are
the other high priority research of our laboratory. Current
projects in fiber optic sensors aim at the implementation
of the sensor system for temperature, underwater acoustic
signal, pressure, vibration, strain, and others in the multiplexed
configurations. This research requires in-depth knowledge
in fiber optics, electronic hardware design including ASICs
and software for control programs.
Ongoing Projects
Optical channel monitoring
Acoustic sensor array for underwater acoustic signal measurement
White light interferometry
Semiconductor & Quantum Electronic
Laboratory
URL: http://web.khu.ac.kr/~kschung
Director: Professor Kwan Soo Chung (kschung@khu.ac.kr)
Research Overview
We study many kinds of semiconductor devices. Especially our
research is focused on materials for semiconductors. Our laboratory
developed several devices which were fabricated by using different
and unordinary materials. Furthermore we have developed new
technology for fabrication. We focus on developing two types
of semiconductor devices: The display device and the memory
device. Our display devices have sufficient technology to
replace the conventional TFT(thin film transistor). The LCD
device and memory devices also have much potential for future
applications. These devices are the solution to the problems
of current models.
Ongoing Projects
Development of Organic TFT LCD device.
Development of GaN memory device.
Development of Electron emitter device for display.
Automatic Control Laboratory
URL: http://autolab.khu.ac.kr/
Director: Professor Chongkug Park (ckpark@khu.ac.kr)
Research overview
In the Automatic Control Laboratory, we are actively working
on the following research projects: 1) the position and force
control of manipulators and the motion control of WMR. We
are using conventional control techniques and also intelligent
control algorithms such as PID, optimal, adaptive, fuzzy-neural
network, genetic, and immune system algorithm; 2) the navigation
and guidance system for robots and vehicles; 3) develop sensor
fusion techniques for robots. The sensor fusion system includes
sonic sensors, laser sensors, IMU sensors, and GPS. Recently,
we started working on the development of embedded web server
for the remote control and monitoring of systems via the Internet.
Possible applications may include remote machine diagnosis
and home automation. We are also engaged in the development
of SMT inspection systems using vision and laser distance
sensors.
Ongoing Projects
Control algorithm using immune system
Vehicle navigation system using IMU
Solder paste inspection system
Remote monitoring and diagnosis technique of laser machine
using embedded mini-web server
Image Communication Laboratory
URL: http://web.khu.ac.kr/~imgcom
Director: Assistant Professor Won Ha Kim (wonha@khu.ac.kr)
Research Overview
Our research focuses on multimedia signal processing. 1) As
the ubiquitous era is arriving, it is important for the image
or video transmission to adapt to variations in network environments.
Using the Wavelet Transform, we are developing a scalable
codec that can easily control image/video quality in accordance
with network environments. 2) We also investigate the scalable
codec to be fitted to DVB system. 3) We are developing a mammo
(breast cancer) detection software on digital mammographs,
using various techniques concerned with image processing and
image understanding.
Ongoing Projects
Development of the scalable interframe Wavelet video codec.
Development of a mammo detection software on digital mammographs.
Development of a low-powered 2D-transform.
Development of a non-rigid object segmentation algorithm on
video/image data.
Digital Communications Laboratory
URL: http://web.khu.ac.kr/~dclab
Director: Professor Yun Hee Kim (yheekim@khu.ac.kr)
Research Overview
Our research focuses on the development of digital communication
technologies for future mobile/wireless communication systems.
Specific research areas include: 1) Design of orthogonal frequency
division multiplexing (OFDM) platforms for efficient broadband
transmission, 2) Multiple input multiple output (MIMO) transmission
via multiple antenna coding and signal processing for spectral
efficiency, and 3) Advanced channel coding schemes such as
turbo and low-density parity-check (LDPC) codes and their
applications such as adaptive modulation and coding (AMC)
and hybrid ARQ. In addition, these techniques are combined
and optimized to increase the throughput and channel capacity
of mobile cellular systems.
Ongoing Projects
Study of future mobile radio transmission technologies
Study of macro diversity transmission for broadcast/multicast
packet data transmission over cellular networks
Design of OFDM platform for cognitive radio and 4G mobile
cellular systems
Study of link adaptation techniques in mobile cellular systems
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