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2nd IEEE International Conference on Wireless Communications, networking and Mobile computing (WiCOM 2006)

作者： Chen Shuixian Ai Haojun Hu Ruimin Yang Yuhong Comp Sch Wuhan 430079 Peoples R China Natl Engn Res Ctr Multimedia Software Wuhan 430079 Peoples R China Hubei Multimedia Network Commun Engn Wuhan 430079 Peoples R China

ISBN: (纸本)9781424405169

The part III of Audio Video Standard of China (AVS) is the first Hi-Fi audio coding standard in China public domain. Through nonlinear quantization and Context-dependent Bitplane entropy Coding (CBC), It offers distinct features of nonlinear quantization noise adaptation and high efficiency Fine Grain Scalability (FGS), but also imposes great challenges on fixed-point implementation with high precision requirement and stringent computational resource restriction. This paper presents tuned optimization strategies for fixed-point arithmetic, buffer manipulation, entropy decoding, and CBC decoding loop reduction to address the challenges. The demonstration real-time implementation on fixed-point DSP TMS320C5509A shows that our design optimization cuts down computational, complexity from over 200 MIPs to 60 MIPs while preserving over 15 effective bits precision for 16-bit PCM output.

关键词： fixed-point nonlinear dequantization loop reduction read backward

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A proposal for telemedicine reference model for future standardization

A proposal for telemedicine reference model for future stand...

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7th International Workshop on Enterprise networking and computing in Healthcare Industry (HEALTHCOM 2005)

作者： Komiya, R Multimedia Univ Fac Informat Technol Cyberjaya 63100 Selangor Malaysia

ISBN: (纸本)0780389409

This paper describes a telemedicine reference model for future standardization [1]. The necessity of the telemedicine reference model has been recognized by ITU-T/D to realize telemedicine equipment portability internationally [2]. Specifically, just in the case of Tsunami disasters on 26 December 2004, wide regional areas in Indian Sea were attacked and more than 273,000 people died [3]. In such a disaster, international medical team co-operations should be necessary, and actually many medical teams came to rescue the wounded. Telemedicine equipment has also been utilized, but portability of the medical equipment was difficult because of the-different interfaces. Therefore, it is necessary to have the standardization of the interface between telemedicine equipment and telecommunication systems. Furthermore, the telemedicine package [4] standardization is also discussed to facilitate quick and efficient medical treatment for various disastrous cases. Key words-telemedicine reference model, interface standardization between telemedicine equipment and telecommunication systems, telemedicine package.

关键词： telemedicine reference model interface standardization between telemedicine equipment and telecommunication systems telemedicine package

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Embedded video surveillance system for vehicle over WLAN and CDMA1X

Embedded video surveillance system for vehicle over WLAN and...

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International Conference on Wireless Communications, networking and Mobile computing

作者： Li, M Hu, RM Gao, G Li, W Wang, ZY Wuhan Univ Key Lab Multimedia & Network Commun Engn Wuhan 430072 Peoples R China

ISBN: (纸本)078039335X

With the recent advancement of mobile wireless technologies such as: wireless LAN and CDMA, it has become viable to create a network-in-motion inside a Vehicle. This paper presents an Embedded Video Surveillance System for vehicle over WLAN and CDMA1X First, it constructs high speed automobile communication environment by fusing CDMA1X and WLAN wireless network;In order to fit the bandwidths sharply variety of wireless channel, adaptive video compression algorithms based MPEG4 is utilized to encode the high quality video. Moreover, unique transmission mechanism using media server and media gateway is presented, which can support large scale concurrent users up to 1000. This transmission mechanism uses the buffer on media server to smooth the video transport in wireless channel. Using this architecture of video transmission for Vehicle, the live surveillance video of mobile can be viewed over internet. Furthermore, Control center can be set up anywhere with internet access without being restricted by monitored site locations. This system is supported by Electronic Information Industry Development Fund of 2004.

关键词： video surveillance vehicle WLAN CDMA

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Photo agent: An agent-based P2P sharing system

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Third International Workshop on Agents and Peer-to-Peer computing, AP2PC 2004

作者： Hsu, Jane Yung-Jen Chen, Jih-Yin Huang, Ting-Shuang Chiang, Chih-He Hsieh, Chun-Wei Department of Computer Science and Information Engineering Institute of Networking and Multimedia National Taiwan University Taipei Taiwan

ISBN: (纸本)3540297553

With the proliferation of content creation devices, sharing digital contents has become an increasingly common task in our daily lives. This research proposes the "Photo Agent" that helps users manage and share digital photos without explicit file manipulation and data communication. The agents shares photos autonomously and pro-actively, so users can simply specify which pictures to share with whom, rather than how the pictures are actually distributed and searched. The prototype photo agent utilizes peer-to-peer networking to support efficient content sharing in a distributed environment. © Springer-Verlag Berlin Heidelberg 2005.

关键词： Intelligent agents

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A fast algorithm for computing a longest common increasing subsequence

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INFORMATION PROCESSING LETTERS 2005年第5期93卷 249-253页

作者： Yang, IH Huang, CP Chao, KM Natl Taiwan Univ Dept Comp Sci & Informat Engn Taipei 10764 Taiwan Natl Taiwan Univ Inst Networking & Multimedia Taipei 10764 Taiwan

Let A = and B = be two sequences, where each pair of elements in the sequences is comparable. A common increasing subsequence of A and B is a subsequence , where i(1) < i(2) < ... < i(1) and j(1) < j(2) < ... < j(l), such that for all 1 less than or equal to k < l, we have a(ik) < a(ik+1). A longest common increasing subsequence of A and B is a common increasing subsequence of the maximum length. This paper presents an algorithm for delivering a longest common increasing subsequence in O(mn) time and O(mn) space. (C) 2004 Elsevier B.V. All rights reserved.

关键词： algorithms computational biology longest common subsequence longest increasing subsequence

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A proposal for telemedicine reference model for future standardization

A proposal for telemedicine reference model for future stand...

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International Conference on e-health networking, Applications and Services (HealthCom)

作者： R. Komiya Faculty of Information Technology Multimedia University Cyberjaya Selangor Darul Ehsan Malaysia

This paper describes a telemedicine reference model for future standardization [Komiya, R (2005)]. The necessity of the telemedicine reference model has been recognized by ITU-T/D to realize telemedicine equipment portability internationally. Specifically, just in the case of Tsunami disasters on 26 December 2004, wide regional areas in Indian Sea were attacked and more than 273,000 people died. In such a disaster, international medical team cooperations should be necessary, and actually many medical teams came to rescue the wounded. Telemedicine equipment has also been utilized, but portability of the medical equipment was difficult because of the different interfaces. Therefore, it is necessary to have the standardization of the interface between telemedicine equipment and telecommunication systems. Furthermore, the telemedicine package [Komiya, R (2005)] standardization is also discussed to facilitate quick and efficient medical treatment for various disastrous cases.

关键词： Proposals Telemedicine Standardization Biomedical equipment Medical diagnostic imaging Packaging machines Medical treatment Space technology Information technology Tsunami

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Mobile next-generation networks

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IEEE multimedia 2004年第1期11卷 72-83页

作者： Huber, JE Siemens AG D-8000 Munich Germany

Mobile next-generation networks (NGNs) area necessary element in reaching the goal of truly ubiquitous computing. The Universal Mobile Telecommunication System, the third-generation mobile service concept, is a technology. step to mobile NGNs. This article delves into the evolution of UMTS as it strives to provide multimedia applications globally.

关键词： Next generation networking 3G mobile communication Mobile computing Ubiquitous computing Protocols Corporate acquisitions IP networks Broadcast technology Web and internet services Communication system control

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Comprehensive multi-platform collaboration

Comprehensive multi-platform collaboration

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Conference on multimedia computing and networking

作者： Singh, K Wu, XT Lennox, J Schulzrinne, H Columbia Univ Dept Comp Sci New York NY 10027 USA

ISBN: (纸本)0819452084

We describe the architecture and implementation of our comprehensive multi-platform collaboration framework known as Columbia InterNet Extensible multimedia Architecture (CINEMA). It provides a distributed architecture for collaboration using synchronous communications like multimedia conferencing, instant messaging, shared web-browsing, and asynchronous communications like discussion forums, shared files, voice and video mails. It allows seamless integration with various communication means like telephones, IP phones, web and electronic mail. In addition, it provides value-added services such as call handling based on location information and presence status. The paper discusses the media services needed for collaborative environment, the components provided by CINEMA and the interaction among those components.

关键词： collaborative work multimedia communication conferencing SIP

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The MIM web gateway to IP multicast E-meetings

The MIM web gateway to IP multicast E-meetings

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Conference on multimedia computing and networking

作者： Parviainen, R Parnes, P Lulea Univ Technol Div Media Technol Dept Comp Sci & Elect S-97187 Lulea Sweden

ISBN: (纸本)0819452084

As video conferencing and e-meeting systems are used more and more on the Internet and in businesses it becomes increasingly important to be able to participate from any computer at any location. Often this is impossible, since these systems requires often special software that are not available everywhere or impossible to install for administrative reasons. Many locations also lack the necessary network infrastructure such as IP multicast. This paper presents a WWW gateway System that enables users to participate using only a standard web browser The design and architecture of the system are described and performance tests that show the scalability of the system are also presented.

关键词： multimedia gateways video conferencing multicast RTP HTTP WWW

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Introduction to the special issue on streaming media

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IEEE TRANSACTIONS ON multimedia 2004年第2期6卷 225-229页

作者： Zeng, WJ Nahrstedt, K Chou, PA Ortega, A Frossard, P Yu, HH Univ Missouri Columbia MO 65211 USA Univ Illinois Urbana IL 61801 USA Microsoft Res Redmond WA 98052 USA Univ So Calif Los Angeles CA 90089 USA Swiss Fed Inst Technol CH-1015 Lausanne Switzerland Panasonic Informat & Networking Technol Lab Princeton NJ 08540 USA

No abstract available

关键词： Special issues and sections Streaming media Error correction codes multimedia systems Wireless networks Quality of service Forward error correction Video compression Computer networks Distributed computing

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