Multimedia Transcoding in Mobile and Wireless Networks

Multimedia Transcoding in Mobile and Wireless Networks

Ashraf M.A. Ahmad (Princess Sumya University of Technology, Jordan) and Ismail Khalil (Johannes Kepler University Linz, Austria)
Indexed In: SCOPUS
Release Date: July, 2008|Copyright: © 2009 |Pages: 460
DOI: 10.4018/978-1-59904-984-7
ISBN13: 9781599049847|ISBN10: 1599049848|EISBN13: 9781599049854|ISBN13 Softcover: 9781616925215
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Description & Coverage
Description:

In recent years, the field of multimedia communication in wireless and mobile video has grown in attraction. As the number of networks, types of devices, and content representation formats increase, the need for multimedia transcoding in wireless and mobile networks intensifies in order to provide a seamless interaction between content creation and usage.

Multimedia Transcoding in Mobile and Wireless Networks addresses the transcoding of all multimedia elements including video, audio and text, while addressing both practical and theoretical problems in the field. A must have resource for all stakeholders in mobile and wireless technologies, this book embodies state-of-the-art knowledge of transcoding as it is embedded in today's pioneering technologies and leading research.

Coverage:

The many academic areas covered in this publication include, but are not limited to:

  • Audio transcoding
  • Content based transcoding
  • Cryptography
  • Digital multimedia adaptation
  • Digital Rights Management
  • Format conversion transcoding
  • Images transcoding
  • Mobile and wireless networks
  • Mobile TV
  • Multimedia Broadcasting
  • Multimedia compression standards
  • Multimedia transcoding
  • Proxy based transcoding
  • Streaming multimedia
  • Video transcoding
  • Webs transcoding
Indices
Reviews and Testimonials

This book establishes the background for understanding those emerging applications and systems which deploy multimedia transcoding

– Ashraf M.A. Ahmad, Princess Sumya University of Technology, Jordan

The growing need for multimedia transcoding for wireless communications is the subject of this engineering textbook, which explains the fundamental need to blend video, audio, and text into a broad spectrum of seamless applications.

– Book News Inc. (Decemeber 2008)
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Editor Biographies
Ashraf Ahmad obtained his PhD degree in Computer Science and Engineering from National Chiao Tung University (NCTU) in Taiwan. He obtained his B.Sc. degree from Princess Sumya University for Technology (PSUT) in Jordan. Dr. Ahmad is currently an assistant professor at the department of computer since in PSUT, Jordan. His interest area includes multimedia semantic features extraction, and analysis, multimedia retrieval, and multimedia communication. Prof. Ahmad has authored over 40 scientific publications including journal papers, conference papers and book chapters. In addition, Dr. Ahmad has several US and international patents in his field of expertise. He serves in program committee for several international conferences. He is also a reviewer and referee for several conferences and journals. His work has been published and presented at various international conferences. Dr. Ahmad has been listed in Who's Who in the World for the year 2006 and Who's Who in Asia for the year 2007. In addition, He has been elected as one of the 2000 Outstanding Intellectuals of the 21st Century for the year 2006 for his outstanding contribution in field of Video Processing and Communications. Ashraf Ahmad has been chosen as one of the recipients of Leading Scientist award in the year 2006.
Ismail Khalil (http://www.iiwas.org/ismail/) is a senior researcher and lecturer at the institute of telecooperation, Johanes Kepler University Linz, Austria, since October 2002. He is the president of the international organization of Information Integration and Web-based Applications & Services (@WAS). He holds a PhD in computer engineering and received his habilitation degree in applied computer science on his work on agents’ interaction in ubiquitous environments in May 2008. He currently teaches, consults, and conducts research in Mobile Multimedia, Cloud Computing, Agent Technologies, and the Semantic Web and is also interested in the broader business, social, and policy implications associated with the emerging information technologies. Before joining Johannes Kepler University of Linz, he was a research fellow at the Intelligent Systems Group at Utrecht University, Netherlands from 2001-2002 and the project manager of AgenCom project at the Software Competence Center Hagenberg - Austria from 2000-2001. Dr. Khalil has authored around 100 scientific publications, books, and book chapters. He is the editor of the Handbook of Research on Mobile Multimedia series, the book Mobile Multimedia: Communication Engineering Perspective, the book Multimedia Transcoding in Mobile and Wireless Networks, the book Innovations in Mobile Multimedia Communications and Applications: New Technologies and the book Advancing the Next-Generation of Mobile Computing: Emerging Technologies. He serves as the Editor-in-Chief of the International Journal on Web Information Systems (IJWIS), International Journal on Pervasive Computing and Communication (IJPCC) both published by Emerald Group publishing, UK, Journal of Mobile Multimedia (JMM) published by Rinton Press, USA, International Journal of Mobile Computing and Multimedia Communication (IJMCMC) published by IGI Global, USA, Advances in Next Generation Mobile Multimedia book series published by IGI Global, USA, and Atlantis Ambient and Pervasive Intelligence book series published by Atlantis and Springer. He is on the editorial board of several international journals. His work has been published and presented at various conferences and workshops.
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Preface

The great proliferation and enhancements in wireless networking, specifically the development of the wireless Ethernet protocols and the quick deployment and growth of mobile communication protocols and technologies such as 2.5G, 3G, DVBH, and so forth, have enabled a broad spectrum of new applications and systems. The ‘any time, any where, any how’ principle of communicating data, emergence of network content providers and the growing attractiveness of handheld devices, are among the factors that have formed the field of multimedia communication in wireless and mobile video. Recently, this field brought about a very sophisticated computing paradigm, which is the multimedia transcoding in mobile and wireless networks. This paradigm is usually focused on filling up the gap between the high resources requirements of multimedia applications and the limited bandwidth and capabilities offered by networking protocols and technologies and handheld devices. In addition, the advance of multimedia systems has had a major influence in the area of image and video coding. The problems of interactivity and integration of video data with computer, cellular, and television systems are relatively new and subject to a great deal of research world wide. Since the number of networks, types of devices, and content representation formats have increased, interoperability between different systems and different networks is becoming more important. Therefore, multimedia transcoding in wireless and mobile networks must be developed to provide a seamless interaction between content creation and usage.

This book is designed to provide the researchers and practitioners with relevant theoretical frameworks and latest technical and institutional solutions for transcoding multimedia in mobile and wireless networks, as well as providing an insight into the field of Multimedia and its associated technologies and communication protocols. Moreover, this book establishes the background for understanding those emerging applications and systems which deploy multimedia transcoding and present a standpoint in the future of transcoding wireless and mobile multimedia and its applications. From a technical point of view, the book intends to embody state of the art knowledge of transcoding multimedia for mobile and wireless networks as it is practiced today and as it is embedded in the pioneering technologies and leading research proposals.

The book is intended for people interested in wireless and mobile multimedia transcoding at all levels. The primary audience of this book includes students, researchers, developers, engineers, innovators and research strategists, who are seeking for a general overview of how to realize, develop and integrate multimedia transcoding systems in mobile and wireless environment. While the book can be used as a textbook by students, engineers, and researchers, it can also be used as a reference book.

This book comprises three sections. Section one is an introduction to Multimedia, Wireless Networks and Transcoding Essentials, Challenges and Approaches. This section is composed of six chapters. Chapter one introduces multimedia and multimedia elements and technology which is influencing and will continue to influence much of the exchanged data over the Internet today. While chapter two presents the importance and applications of wireless communication, such as IEEE 802.11 WLAN, Bluetooth, or Inferred port. IEEE 802.11. It also proposes some enhancements schemes, most of them focusing on enhancing a particular part or mode of the standard by first discussing QoS support for multimedia application, then proposing a framework for classifying the QoS enhancements.

Chapter three provides an overview of the key factors that influence the quality of experience (QoE) of mobile TV services. It compiles the current knowledge from empirical studies and recommendations on four key requirements for the uptake of mobile TV services. The next chapter is a comprehensive review of analysis algorithms to extract semantic information from multimedia content, as well as discussing statistical approaches to analyze images and video. The last chapter of section one sheds light on modality conversion as an important adaptation method. The authors of this chapter point out two main challenging issues of the problem of modality conversion: 1) the quantification of the content value (quality) when contents are drastically scaled and/or converted to other modalities and 2) the method to accurately decide the modality and the content value for each object given that quantification.

In section two, many frameworks and algorithms for multimedia transcoding in mobile and wireless networks have been proposed. The first chapter of this section which happens to be chapter six of this book highlights the pros and cons of transcoding and scalable coding techniques, presenting solutions based on layered coding and multiple descriptions coding as a valuable alternative to transcoding, especially in those cases where network losses are not negligible. Chapter seven outlines comprehensive awareness and understanding of research efforts in the field of extreme rate distributed video transcoding. The basic concepts and theories of rate control methods such as a re-quantization, a temporal resolution reduction, a spatial resolution reduction, and an object-based transcoding are introduced.

Several efficient mechanisms for improving the quality of service (QoS) delivered to the client, by deploying content based transcoding schemes have been introduced in chapter eight. The proposed approaches are performing the required transcoding based on the video content. Some approaches study the texture and temporal features. Other approaches perform object detection in order to determine the important objects to achieve semantic transcoding. Chapter nine investigates the new multichannel constraints and opportunities of the new means of multimedia-based service, as well as the new user-demanding requirements that arise. It further examines the relationship between the adaptation and personalization research considerations, and proposes three-layer architecture for adaptation and personalization of Web multimedia content based on the “new” user profile, with visual, emotional, and cognitive processing parameters incorporated. Informative discussion on the various issues that surround the development stage of mobile TV services is presented in chapter ten. This chapter highlights the importance of Quality of Experience (QoE), and discusses the factors affecting QoE and the types of assessment methods used to evaluate QoE. It also presents a QoE layered model with the aim of ensuring end-to-end user satisfaction.

Chapter eleven presents and elaborates an effective enhncement to the operation of Content Delivery Networks (CDNs) through Hydrid Straming Mechanism (HSM), whereby an average of more than 40% of clients requests are served. Section two is ended by chapter twelve which introduces a novel error detection algorithm for H.264/AVC video transmission. In this chapter the authors present the possibility of detecting errors in H.264/AVC encoded video streams through a proposed error detection method that exploits the set of entropy coded words as well as range and significance of the H.264/AVC information elements.

Section three is the last section of this book which introduces the applications and systems that can benefit from either deploying multimedia transcoding or the transcoding itself. Chapter thirteen is the first chapter of section three. This chapter provides an overview of second language learning and an approach on how wireless collaborative virtual reality can contribute to resolving important pedagogical challenges. The next two chapters, namely chapter fourteen and chapter fifteen discuss security issues in multimedia transcoding. Chapter fourteen proposes and analyses transcoding scheme for scalable video coding, in conjunction with the introduction to scalable video coding and multimedia encryption, the overview of existing secure transcoding schemes, and some open issues in this field. On the other hand, chapter fifteen presents an expandable keyless self encrypting/decrypting system to be used in various communications systems, by which the information is transmitted securely over the medium from the sender to the intended receiver who is supposed to get it in the first place and deter the others from getting the information sent.

Chapter sixteen addresses digital signal processing techniques for sound restoration and enhancement. The most common sound degradations found in audio recordings, such as thumps, pops, clicks, and hiss are characterized. Moreover, the most popular solutions for sound restoration are described, with emphasis on their practical applicability. Finally, critical views on the performance of currently available restoration algorithms are provided, along with discussions on new tendencies observed in the field.

The last two chapters of this section address the digital watermarking for multimedia to be deployed in transcoding systems. Chapter seventeen deals with the issue of transaction tracking in multimedia distribution applications through digital watermarking terminology, and proposes an Independent Component Analysis (ICA)-based watermarking scheme, which can overcome the problems of the existing watermarking schemes. While chapter eighteen describes three discrete wavelet transform (DWT) based digital image watermarking algorithms in terms of basis of operation, composition, and performance analysis. The ideas described in the chapter can be easily extended to watermarking multimedia objects that include audio and video data contents.

This is a new reference and text book for multimedia transcoding in wireless and mobile networking. This book sets a solid foundation for the paradigm of multimedia transcoding in wireless networking, as this field has recently emerged, and only a few papers related to it have been published. Many researchers and developers need such reference to guide them through their work in realizing multimedia transcoding in wireless and mobile environment. This will be the first attempt that introduces the field of multimedia transcoding from all perspectives. As far as this book is concerned, there is no other book that addresses this field thoroughly. This book is expected to be a reference in many future publications or researches in the field of multimedia transcoding in wireless and mobile environment.