MPEG-II Video Coding for Noisy Channels PDF Download

Author: Robert Swann
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Author: David Wallace Redmill
Publisher:
ISBN:
Category :
Languages : en
Pages : 242

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Author: Barry G. Haskell
Publisher: Springer Science & Business Media
ISBN: 0306469820
Category : Computers
Languages : en
Pages : 451

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Book Description
Digital Video offers comprehensive coverage of the MPEG-2 audio/visual digital compression standard. The treatment includes the specifics needed to implement an MPEG-2 Decoder, including the syntax and semantics of the coded bitstreams. Since the MPEG-2 Encoders are not specified by the standard, and are actually closely held secrets of many vendors, the book only outlines the fundamentals of encoder design and algorithm optimization.

Author: King N. Ngan
Publisher: CRC Press
ISBN: 148229009X
Category : Technology & Engineering
Languages : en
Pages : 560

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Book Description
"Explains the transmission of image and video information over wireless channels. Describes MPEG-4, the latest video coding standard. Discusses error resilient combined source channel image and video coders, and multiple access spread spectrum and future generation wireless video communication systems."

Author: Aneela Jahan Zaib
Publisher:
ISBN:
Category :
Languages : en
Pages :

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This thesis considers the performance of MPEG-4 compressed video over noisy channels. This is a design project that proposes a synchronization technique for improving the resilience of MPEG-4 video to transmission errors, without the addition of any extra redundancy into the bitstream. The errors on noisy transmission channels cause the loss of synchronization between encoder and decoder. The proposed scheme transcodes the MPEG-4 compressed video bitstream into an error resilient structure for transmission over noisy channels. The Resynchronization Markers, traditionally used in MPEG-4 for resynchronization are quite long and hence cause considerable overhead. Furthermore, in the event of a transmission error all the data between two consecutive Resynchronization markers needs to be discarded. The transcoding scheme proposed in this thesis avoids the use of these long Resynchronization Markers and instead achieves resynchronization with minimal overhead using a technique called Error Resilient Entropy Coding (EREC) that also provides enhanced resilience to transmission errors. The proposed scheme is standard compatible and can be implemented without any change in current codecs.

Author: David Bull
Publisher: Morgan Kaufmann
ISBN: 9780121403102
Category : Computers
Languages : en
Pages : 498

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Book Description
Describes the state-of-the-art in digital multimedia communications. This text presents an integrated view of advanced radio systems, network architectures and source coding.

Author: Mihaela van der Schaar
Publisher: Springer Nature
ISBN: 3031022394
Category : Technology & Engineering
Languages : en
Pages : 80

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Book Description
An important merit of the MPEG-4 video standard is that it not only provided tools and algorithms for enhancing the compression efficiency of existing MPEG-2 and H.263 standards but also contributed key innovative solutions for new multimedia applications such as real-time video streaming to PCs and cell phones over Internet and wireless networks, interactive services, and multimedia access. Many of these solutions are currently used in practice or have been important stepping-stones for new standards and technologies. In this book, we do not aim at providing a complete reference for MPEG-4 video as many excellent references on the topic already exist. Instead, we focus on three topics that we believe formed key innovations of MPEG-4 video and that will continue to serve as an inspiration and basis for new, emerging standards, products, and technologies. The three topics highlighted in this book are object-based coding and scalability, Fine Granularity Scalability, and error resilience tools. This book is aimed at engineering students as well as professionals interested in learning about these MPEG-4 technologies for multimedia streaming and interaction. Finally, it is not aimed as a substitute or manual for the MPEG-4 standard, but rather as a tutorial focused on the principles and algorithms underlying it.

Author: Hemamalini Narayanan
Publisher:
ISBN:
Category :
Languages : en
Pages : 228

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Author: Vasudev Bhaskaran
Publisher: Springer Science & Business Media
ISBN: 9780792399520
Category : Computers
Languages : en
Pages : 478

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Book Description
New to the Second Edition: offers the latest developments in standards activities (JPEG-LS, MPEG-4, MPEG-7, and H.263) provides a comprehensive review of recent activities on multimedia enhanced processors, multimedia coprocessors, and dedicated processors, including examples from industry. Image and Video Compression Standards: Algorithms and Architectures, Second Edition presents an introduction to the algorithms and architectures that form the underpinnings of the image and video compressions standards, including JPEG (compression of still-images), H.261 and H.263 (video teleconferencing), and MPEG-1 and MPEG-2 (video storage and broadcasting). The next generation of audiovisual coding standards, such as MPEG-4 and MPEG-7, are also briefly described. In addition, the book covers the MPEG and Dolby AC-3 audio coding standards and emerging techniques for image and video compression, such as those based on wavelets and vector quantization. Image and Video Compression Standards: Algorithms and Architectures, Second Edition emphasizes the foundations of these standards; namely, techniques such as predictive coding, transform-based coding such as the discrete cosine transform (DCT), motion estimation, motion compensation, and entropy coding, as well as how they are applied in the standards. The implementation details of each standard are avoided; however, the book provides all the material necessary to understand the workings of each of the compression standards, including information that can be used by the reader to evaluate the efficiency of various software and hardware implementations conforming to these standards. Particular emphasis is placed on those algorithms and architectures that have been found to be useful in practical software or hardware implementations. Image and Video Compression Standards: Algorithms and Architectures, emSecond Edition uniquely covers all major standards (JPEG, MPEG-1, MPEG-2, MPEG-4, H.261, H.263) in a simple and tutorial manner, while fully addressing the architectural considerations involved when implementing these standards. As such, it serves as a valuable reference for the graduate student, researcher or engineer. The book is also used frequently as a text for courses on the subject, in both academic and professional settings.

Author: Manuela Pereira
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Book Description
This PhD thesis provides a new ways of looking multiple description method (MDC). We propose a robust joint source channel MDC method that is adapted to the transmission of images and videos on non stationary channels. The main advantage of this method is that it is well adapted for applications implying transmissions using unreliable and variable channels. Moreover, for its compression and synchronization capabilities it is appropriate for real time transmissions. We show that the proposed method present the best results, in terms of signal to noise ration and of visual quality, when compared with other multiple description methods existing in the state of the art. Moreover, it is well adapted for applications where the standard method of error control cannot easily adapt to the characteristics of the channel. The method is validated on various channel models (BSC, AWGN, Internet, UMTS, satellite) when considering image and video transmissions. The proposed MDBA is well adapted for application demanding a feedback-based encoder, as peer-to-peer video conferencing, wireless video, etc. But it is insufficient in a real video streaming system where the server may be a serving thousand of clients simultaneously. It is that the reason why we develop a system based in the MDBA but dedicated to video streaming. The last chapter of this dissertation presents an extension of the MDBA method to make streaming video robust to channel errors. The proposed method is rate adaptable, at the actual commercial methods, and it is also quality adaptable that is presented in the literature as an important characteristic of video streaming systems