pdf version - seng, hkust

Empowering Excellence
Networking and Computer Systems
High Speed Switches and Routers
• Architectures, analysis and design of high-performance switches
and Internet routers, scheduling algorithms, traffic management,
memory architectures, and quality of service guarantees.
Wireless Technologies
• Next-generation wireless networks and systems, cognitive and
cooperative wireless networking, sensor networking, large-scale
peer-to-peer systems, and multimedia communications.
Distributed Systems
• Large-scale content distribution in the Internet, peer-to-peer media
streaming, the Internet topology, cloud computing, video delivery
and multicasting, capacity provisioning and resource management
in cellular networks, green computing and communications.
Software Technologies
Software Engineering
• Software analysis and testing, software analytics, ubiquitous
software development.
Computer Music
• Computer music and audio engineering.
Software Theory and System
• Cryptography and coding theory, mining software repository,
multimedia and Internet computing, embedded systems and
software, services computing.
Research Highlights
3D Digital City Modeling
The vision and graphics group, led by Prof Long Quan, has worked on 3D reconstruction and
modeling from images at the confluence of computer vision and computer graphics. The group
has contributed the state of the art quasi-dense approach to three-dimensional reconstruction and
structure from motion from images. The group then developed a series of modeling applications,
ranging from smooth surface modeling to prior-based hair and tree modeling. Most recently,
the group has been developing reconstruction and modeling approaches to large-scale threedimensional
city modeling from two-dimensional Google Earth Street View and Microsoft Virtual
Earth Streetside imagery.
Landmark Photography
Prof Pedro Sander worked with a team of researchers to develop the world’s largest digital
photograph in September 2010. The photograph, depicting the city of Rio de Janeiro, Brazil, had a
resolution of 150 billion pixels. The picture was the result of using cutting-edge technology to stitch
together 11,000 photographs, each of 18 megapixels. Using very high quality printing, it would
occupy the size of a football field, and with standard quality printing it would be at least twice that
size.
The researchers used a GigaPan robotic arm to position and take the photographs from the Sugar
Loaf – a landmark in Rio de Janeiro, Brazil. The entire process took about four hours. The stitching
process was challenging due to the large amount of data processing involved. Many stitching
solutions were attempted to reduce the seam artifacts across images and the final process took
several weeks. It took another full week just to upload the picture to the website over the Internet.
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