International Symposium on Multimedia over Wireless

Sheraton Maui Resort, Kaanapali Beach, Maui, Hawaii, USA

June 13-16, 2005

Technical Sponsored by:

IEEE Multimedia Communications Technical Committee

IEEE Visual Signal Processing and Communications Technical Committee

 

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Keynote speakers

 

Aggelos Katsaggelos (Fellow, IEEE) Northwestern University, USA

 

Efficient Resource Allocation for Packet-Based Real-Time Video Transmission

 

ABSTRACT

 

Supporting video communication over lossy channels such as wireless networks and the Internet is a challenging task due to the stringent quality of service (QoS) required by video applications and the many channel impairments.  Two important QoS characteristics for video are the degree of signal distortion and the transmission delay.  Another important consideration is the cost associated with transmission, for example, the energy consumption in the wireless channel case and the cost for differentiated services in the Internet (with DiffServ) case.

 

Emphasis will be primarily given on video compression for transmission over wireless channels, but similar results can be obtained for transmission over networks with differentiated services.  We consider the joint adaptation of the source coding parameters, such as the quantization step-size and prediction mode, along with the physical layer resources, such as the transmission rate and power.  Our goal is to provide acceptable QoS while taking into account system constraints such as the energy utilization.  We propose a general framework that allows a number of "resource/distortion" optimal formulations for balancing the requirements of different applications. 

 

PROFILE

 

Aggelos K. Katsaggelos is a Professor at Northwestern University, Department of ECE, and Director of the Northwestern-Motorola Center for Telecommunications. He is also a member of the Associate Staff, Department of Medicine, at Evanston Hospital. He received the Diploma degree in electrical and mechanical engineering from the Aristotle University of Thessaloniki, Greece, in 1979, and the M.S. and Ph.D. degrees both in electrical engineering from the Georgia Institute of Technology in 1981 and 1985, respectively. He has published extensively in the areas of image and video recovery, video processing and compression, and multimedia signal processing and communications. He is the editor of "Digital Image Restoration", (Springer, 1991), co-author of "Rate-Distortion Based Video Compression", (Kluwer, 1997), and co-editor of "Signal Recovery Techniques for Image and Video Compression and Transmission", (Kluwer, 1998). He is a member of the Board of Governors and the Publications Board of the IEEE Signal Processing Society, the IEEE TAB Magazine Committee, and Editor-in-Chief of the IEEE Signal Processing Magazine. He is Fellow of the IEEE (1998), recipient of the IEEE Millennium Medal (2000), the IEEE Signal Processing Society Meritorious Service Award (2001), and an IEEE Signal Processing Society Best Paper Award (2001).

 

 

Jhing-Fa Wang (Fellow, IEEE) National Cheng Kung University, Taiwan

 

Advanced Ubiquitous Media for Creative Cyberspace

 

ABSTRACT

 

In this talk we will discuss how to construct a modern creative cyberspace through the developments of ubiquitous digital contents services, wireless sensor networks with emotion detection and media perception capabilities.  In the past five years for international achievements, many research centers, such as MIT Media Labs, IBM Research Labs, and Microsoft Research have respectively created the related researches on well known Oxygen, DreamSpace, and EasyLiving projects.

 

The Oxygen, which enables pervasive, human-centered computing through a combination of specific user and system technologies, highly utilizes the user technologies to directly provide human needs. Devices in Oxygen supply power for computation, communication, and perception in much the same way that batteries and wall outlets supply power for electrical appliances. Both mobile and stationary devices are universal communication and computation appliances. DreamSpace allows users to collaborate in a shared space. The system "hears" users' voice commands and "sees" their gestures and body positions. Interactions are natural, more like human-to-human interactions. The "computer" understands the user, and -- just as important -- other users understand. Users are free to focus on virtual objects and information and understanding and thinking. EasyLiving is developing a prototype of architecture and technologies for building intelligent environments. The key features include the computer vision for person-tracking and visual user interaction with multiple sensor modalities combined, the use of a geometric model of the world to provide context, the automatic or semi-automatic sensor calibration and model building, the fine-grained events and adaptation of the user interface, and the device-independent communication and data protocols. Although the previous progress on digital content, intelligent sensing and perception, applied cognition, media living modulus and creative cyberspace technologies have been impressive, there are significant obstacles to be overcome before the integration of these technologies can reach their full potential and be applied to the digital living environments.

 

In summary, the following subjects will be mainly addressed in this talk

   1:      Briefly Review for OXYGEN, DreamSpace, and EasyLiving projects.

   2:      Ubiquitous Human Computer Interface and Media Access

   3:     Ubiquitous Media Platforms, Wireless Sensor Networks and Intelligent Displays

   4:      Creative Design of Ubiquitous Media Space

 

PROFILE

 

Jhing-Fa Wang is now a Chair Professor in National Cheng Kung University, Tainan, Taiwan. He received his Master and Bachelor degrees in the Department of Electrical Engineering from National Cheng Kung University, Taiwan in 1979 and 1973, respectively and Ph.D. degree in the Department of Computer Science and Electrical Engineering from Stevens Institute of Technology, U.S.A. in 1983. He was elected as an IEEE Fellow in 1999 and now the Chairman of IEEE Tainan Section. He got outstanding awards from Institute of Information Industry in 1991 and National Science Council of Taiwan in 1990, 1995, and 1997, respectively. He has been invited to give keynote speech in PACLIC 12 (Pacific Asia Conference on Language, Information and Computation), Singapore and served as the general chairman of ISCOM 2001. (International Symposium on Communication), Taiwan. He has developed a Mandarin speech recognition system called Venus-Dictate known as a pioneering system in Taiwan. He was an associate editor for IEEE Transaction on Neural Networks and VLSI System. He is currently leading a research group of different disciplines for the development of ¡°Advanced Ubiquitous Media for Created Cyberspace¡±. He has published about 91 journal papers and 217 conference papers and obtained 5 patents since 1983. His research areas include wireless content-based media processing, speech recognition and natural language understanding.