Compressed video communications

The compression schemes applied for the storage and transmission of digital video data leave content sensitive to transmission errors, information loss and quality degradation. Recent developments in error resilience techniques allow improved quality of service of video communication over a range of network platforms. Digital video communications, supported by the Internet, ATM networks and Broadband ISDN, have undergone significant development over the past few years. Emerging applications include videoconferencing, tele-medicine and distance learning. This leading edge text addresses the problems associated with the delivery and design of video communication services. Presents a comprehensive overview of the principles and techniques employed in the improvement of the performance of video codecs in error prone environments Provides a performance evaluation and comparison of video coding standards, MPEG-4, H.261 and H.263 Outlines methods of video communication over mobile networks Provides guidance on quality enhancement and the meeting Quality of Service (QoS) requirements for digital video communications Accompanying CD-ROM containing video clips to illustrate the coding and error resilience technology described within the text A valuable resource for researchers and postgraduate students working with video communication technology, as well as practising electronic and communications engineers designing and implementing video communication systems and consultants working in the video, television, computing and communications industries.

Compressed Video Communications addresses the compression and transmission of coded video streams over mobile IP networks. By analysing a broad spectrum of compression techniques and error resilience algorithms this book provides realistic solutions to the problems of quality degradation and transmission error.

Features include:

* Discussion of the real-time transmission of coded video streams over mobile IP packet networks such as GPRS and UMTS, at both application and transport level.

* Descriptions of relevant rate control schemes such as bit rate regulation, scaleability and resolution reduction.

* Evaluation of the performance of compression techniques and comparison of available video coding standards.

* Comprehensive overview of homogeneous and heterogeneous video transcoding algorithms and error resilient transcoders.

* Examination of error control in video communications including coverage of error resilience and decoder-based error concealment.

* Accompanying CD-ROM containing 50 video clips illustrating the temporal and spatial quality achieved by the compression techniques outlined in the text.

Highlighting the quality of service issues associated with transmission over mobile networks, Compressed Video Communications is an essential guide for communications engineers and multimedia systems designers. This overview of the basic technologies and applications of digital video compression will also appeal to researchers and graduate students in the field.

Booknews

Written for communications engineers and multimedia systems designers, this book offers an overview of the basic technologies and applications of digital video compression. It addresses the compression and transmission of coded video streams over mobile IP networks and analyzes a wide array of compression techniques and error resilience algorithms. It highlights issues related to the quality of service and suggests solutions to problems of quality degradation and transmission error. Sadka teaches at the University of Surrey. Annotation c. Book News, Inc., Portland, OR (booknews.com)

"Compressed Video Communications" addresses the compression and transmission of coded video streams over mobile IP networks. By analysing a broad spectrum of compression techniques and error resilience algorithms, this book provides realistic solutions to the problems of quality degradation and transmission error.; This volume features: discussion of the real-time transmission of coded video streams over mobile IP packet networks such as GPRS and UMTS, at both application and transport level; descriptions of relevant rate control schemes such as bit rate regulation, scaleability and resolution reduction; evaluation of the performance of compression techniques and comparison of available video coding standards; a comprehensive overview of homogeneous and heterogeneous video transcoding algorithms and error resilient transcoders; examination of error control in video communications, including coverage of error resilience and decoder-based error concealment; and an accompanying CD-ROM containing 50 video clips illustrating the temporal and spatial quality achieved by the compression techniques outlined in the text.; Highlighting the quality of service issues associated with transmission over mobile networks, this guide for communications engineers and multimedia systems designers gives an overview of the basic technologies and applications of digital video compression that should also be of interest to researchers and graduate students in the field Compressed Video Communications......Page 1 Copyright......Page 4 Contents......Page 6 Preface......Page 10 About the Author......Page 14 Ch1 Introduction......Page 15 Ch2 Overview of Digital Video Compression Algorithms......Page 25 Ch3 Flow Control in Compressed Video Communications......Page 89 Ch4 Error Resilience in Compressed Video Communications......Page 135 Ch5 Video Communications over Mobile IP Networks......Page 191 Ch6 Video Transcoding for Inter-Network Communications......Page 229 AppA Layering Syntax of ITU-T H.263 Video Coding Standard......Page 271 AppB Description of Video Clips on the Supplementary CD......Page 279 Glossary of Terms......Page 284 Index......Page 288 Both the International Standardisation Organisation (ISO) and the International Telecommunications Union (ITU) standardisation bodies have been releasing recommendations for universal image and video coding algorithms since 1985.