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Author: Tadashi Shiomi Publisher: IOS Press ISBN: 9781586030995 Category : Computers Languages : en Pages : 306
Book Description
Broadcast television began in Japan in 1953. Since then the presence of television has continued to grow and TV broadcasts are the most familiar source of information for most people. This book compiles the fundamentals of digital broadcast, which has developed since the advent of text caption broadcasting in 1985, it also looks at other advanced technology including terestrial broadcast, satellite broadcast and CATV - cable television.
Author: Tadashi Shiomi Publisher: IOS Press ISBN: 9781586030995 Category : Computers Languages : en Pages : 306
Book Description
Broadcast television began in Japan in 1953. Since then the presence of television has continued to grow and TV broadcasts are the most familiar source of information for most people. This book compiles the fundamentals of digital broadcast, which has developed since the advent of text caption broadcasting in 1985, it also looks at other advanced technology including terestrial broadcast, satellite broadcast and CATV - cable television.
Author: Martin Cave Publisher: Edward Elgar Publishing ISBN: 1847201601 Category : Business & Economics Languages : en Pages : 301
Book Description
. . . the authors succeed in presenting an excellent overview of the evolution of most of the general issues and challenges currently facing policymakers and regulators in virtually every area of the media industries. . . This volume will definitely be on my own required reading list the next time I teach a course in media policy and strategy. Richard Hawkins, Communications and Strategies This volume offers broad coverage of the economic and commercial issues involved in digital television in major regions and countries around the world. Regulators, executives and consultants in the broadcasting and communities sectors will find much of interest in the volume. It can also be useful additional reading for students in media or business studies. The bibliographies appearing at the end of each chapter will stimulate academic debate. Madely du Preez, Online Information Review Digital television is transforming both broadcasting and, as a result of convergence, the larger world of communications. The impending analogue switch-off will have a major impact on households all over the developed world. Digital Broadcasting considers the effects of digital television on the availability, price and nature of broadcast services in the Americas, Europe and Japan. It shows how this depends upon what platforms cable, satellite, fixed or wireless broadband countries have available for use and also upon government policies and regulatory interventions. The authors show how policies towards digital television are also closely linked with spectrum for example, whether to use spectrum released from analogue broadcasting for mobile communications or for broadcasting, including the newly developed mobile broadcasting. This is one of the key technological changes of the early 21st century and its development will affect many countries economies and societies. The book has an invaluably broad coverage of the economic and commercial issues involved in digital television in major regions and countries around the world. Regulators, executives and consultants in the broadcasting and communications sector will find much to engage them within the book. Researchers and academics of industrial and public sector economics will also find the book of great interest. Students in media studies or business courses can also use the book as additional reading.
Author: Walter Fischer Publisher: Springer Science & Business Media ISBN: 3540763589 Category : Technology & Engineering Languages : en Pages : 588
Book Description
This essential text for any technician in broadcasting deals with all the most important digital television, sound radio and multimedia standards. The book provides an in-depth look at these subjects in terms of practical experience. In addition it contains chapters on the basics of technologies such as analog television, digital modulation, COFDM or mathematical transformations between time and frequency domains. The attention in each respective field under discussion is focused on aspects of measuring techniques and of measuring practice, in each case consolidating the knowledge imparted with numerous practical examples. Since the entire field of electrical communications technology is traversed in a wide arc, those who are students in this field are not excluded either.
Author: Jo Pierson Publisher: Bloomsbury Publishing ISBN: 147251727X Category : Social Science Languages : en Pages : 171
Book Description
Digital Broadcasting presents an introduction to how the classic notion of 'broadcasting' has evolved and is being reinterpreted in an age of digitization and convergence. The book argues that 'digital broadcasting' is not a contradiction in terms, but-on the contrary-both terms presuppose and need each other. Drawing upon an interdisciplinary and international field of research and theory, it looks at current developments in television and radio broadcasting on the level of regulation and policy, industries and economics, production and content, and audience and consumption practices.
Author: United States. Advisory Committee on Public Interest Obligations of Digital Television Broadcasters Publisher: ISBN: Category : Digital television Languages : en Pages : 180
Author: Philip J. Cianci Publisher: Taylor & Francis ISBN: 1136032894 Category : Language Arts & Disciplines Languages : en Pages : 240
Book Description
HDTV and the Transition to Digital Broadcasting bridges the gap between non-technical personnel (management and creative) and technical by giving you a working knowledge of digital television technology, a clear understanding of the challenges of HDTV and digital broadcasting, and a scope of the ramifications of HDTV in the consumer space. Topics include methodologies and issues in HD production and distribution, as well as HDTV's impact on the future of the media business. This book contains sidebars and system diagrams that illustrate examples of broadcaster implementation of HD and HD equipment. Additionally, future trends including the integration of broadcast engineering and IT, control and descriptive metadata, DTV interactivity and personalization are explored.
Author: Katharina Grimme Publisher: Artech House ISBN: 9781580532976 Category : Computers Languages : en Pages : 312
Book Description
This unique book analyses the standardization and technology adoption of digital broadcasting. You are provided with an historic perspective on industry standardization of TV technology, revealing that the open, committee led DVB Group is much more successful than earlier standardization approaches. It covers the most recent developments in the European, US and Japanese audio-visual sectors.
Author: Arthur Lugmayr Publisher: Springer Science & Business Media ISBN: 9780387208435 Category : Computers Languages : en Pages : 282
Book Description
The book shows how digital-interactive television (digiTV) will affect the relation between the broadcaster and the consumer. Standardization processes, technological paradigms, and application development issues will be discussed. The emerging applications, innovations, and future concepts are described in detail. The triangle: content - end-user - technology will be conceptualized to create a vision and to overview provision of services that will be major innovative elments in the world of digital television. From the technical side, eXtensible Markup Language (XML)-based metadata standards are a major element in realizing new innovative concepts in the world of digital, interactive television. This book clearly shows by the introduction of applications and use-scenarios, which conceptual requirements and metadata models are applicable, which metadata subsets are applicable due to resource limitations, which metadata aspects are needed for nonlinear content viewing, etc. The book gives a broad and detailed both visionary and technical overview useful for graduates, engineers, and scientists; and last but not least decision-makers in the broadcasting industry.
Author: M. Sakthivel Publisher: BRILL ISBN: 9004419152 Category : Law Languages : en Pages : 272
Book Description
In Broadcasters’ Rights in the Digital Era, Sakthivel provides a cogent and insightful understanding of authors’ right vis-à-vis broadcasters’ right in the technologically advanced era especially in live streaming technology context.
Author: Tobias Tröger Publisher: Cuvillier Verlag ISBN: 3736942338 Category : Technology & Engineering Languages : en Pages : 218
Book Description
Abstract The transmission of digital TV signals to mobile receivers is often error-prone. As most TV broadcasting techniques provide only moderate error robustness, horizontal lines of consecutive image blocks are lost during decoding of the received video signals. In order to ensure high viewing experiences, these lost slices have to be filled by error concealment techniques. However, the reconstruction qualities of classical approaches which exploit spatial, temporal, or spatio-temporal signal correlations are not convincing yet. In the future, mobile TV receivers will support different broadcasting techniques in parallel. As a result, an erroneous high-resolution video signal and a correctly received low-resolution video signal, both representing the same TV service, will often be available. Focusing on the outlined scenario for multi-broadcast reception of digital TV signals, this thesis introduces the novel category of inter-sequence error concealment algorithms. The basic idea is to fill lost slices of the high-resolution video signal by the interpolated low-resolution video signal. Since the images of this reference signal are often cropped and delayed, robust spatio-temporal image alignment is crucial. By including a pixel-based or a feature-based alignment scheme, the proposed concealment algorithms provide excellent visual qualities and outstanding reconstruction qualities of up to 41 dB PSNR. Classical concealment techniques are outperformed by up to 15 dB PSNR. To further enhance the reconstruction quality, several extensions are introduced. First, the alignment robustness and the interpolation quality are increased. Subsequently, a classical temporal approach is incorporated as an alternative concealment mode to cope with low image qualities of the reference signal. Novel aspects include robust mode selection, enhanced motion estimation, and the reconstruction of the displaced frame differences from the reference signal. As a last extension, spatial refinement tackles blurring of concealed image blocks. Missing spectral components are recovered in a frequency selective way based on approximation and extrapolation principles. By combining all relevant extensions, the PSNR gain adds up to 20 dB with respect to classical concealment. Finally, inter-sequence error concealment is adapted to multi-broadcast reception of two erroneous high-resolution video signals. While spatial alignment can be omitted, classical concealment of blocks, being lost in both video signals, and drift compensation in predictively-coded frames are novel aspects. Again, high visual qualities are obtained and classical concealment is outperformed by up to 15 dB PSNR. Zusammenfassung Der Empfang digitaler Fernsehsignale mit mobilen Endgeräten wird meist durch Übertragungsfehler gestört. Da viele der eingesetzten Übertragungsstandards nur unzureichende Korrekturmechanismen bieten, können bei der Decodierung der empfangenen Videosignale Blockzeilenverluste auftreten. Um die Verlustgebiete zu verschleiern, werden üblicherweise zeitliche, örtliche oder zeitlich-örtliche Signalkorrelationen ausgenutzt. Die dabei erzielte Rekonstruktionsqualität ist jedoch häufig nicht zufriedenstellend. Zukünftig werden mobile Fernsehempfänger mehrere Übertragungsstandards parallel unterstützen. Durch den Einsatz dieser Mehrfachempfänger ist jedes Fernsehprogramm typischerweise in Form eines gestörten, hochauflösenden Videosignals und eines ungestörten, niedrigauflösenden Videosignals verfügbar. Ausgehend vom Mehrfachempfang digitaler Fernsehsignale wird in dieser Arbeit eine neue Gruppe von Verfahren zur Fehlerverschleierung beschrieben. Die grundlegende Idee dieser Ansätze besteht darin, verlorene Bildblöcke des hochauflösenden Videosignals durch Blöcke des interpolierten niedrigauflösenden Referenzsignals zu ersetzen. Da das Referenzsignal häufig nur Bildausschnitte zeigt und zudem meist zeitverzögert eintrifft, ist die korrekte Bestimmung der örtlichen Abbildungsparameter und des zeitlichen Versatzes ausschlaggebend für eine hochqualitative Verschleierung. Durch den Einsatz bildbasierter oder merkmalsbasierter Schätzverfahren werden eine exzellente visuelle Bildqualität und eine außergewöhnlich hohe Rekonstruktionsqualität erzielt. Der Spitzensignal-Rauschabstand beträgt bis zu 41 dB. Herkömmliche Verfahren werden um bis 15 dB übertroffen. Um die Rekonstruktionsqualität weiter zu erhöhen werden zahlreiche Erweiterungen der beschriebenen Verschleierungsansätze vorgeschlagen. Zuerst werden die Zuverlässigkeit der Parameterschätzung und die Interpolationsqualität verbessert. Danach wird ein herkömmliches zeitliches Verschleierungsverfahren integriert, um eine niedrige Bildqualität des Referenzsignals zu kompensieren. Neue Aspekte sind dabei die robuste Wahl des besseren Verschleierungsmodus, eine verbesserte Bewegungsschätzung und die Rekonstruktion des Prädiktionsfehlers unter Verwendung des Referenzsignals. Zuletzt wird die Bildschärfe bereits verschleierter Blöcke erhöht. Dazu werden fehlende Spektralanteile basierend auf frequenzselektiven Approximations- oder Extrapolationsansätzen wiederhergestellt. Durch die Kombination aller relevanten Erweiterungen wird die Rekonstruktionsqualität herkömmlicher Verfahren um bis zu 20 dB übertroffen. Abschließend werden die beschriebenen Fehlerverschleierungsverfahren an ein Szenario für den Mehrfachempfang digitaler Fernsehsignale angepasst, bei dem zwei fehlerhafte hochauflösende Videosignale verfügbar sind. Während die Schätzung der örtlichen Abbildungsparameter entfällt, müssen Bildblöcke, die in keinem der beiden Videosignale korrekt empfangen wurden, durch herkömmliche Verfahren verschleiert werden. Als weitere Neuerung wird ein Verfahren zur Kompensation des Drifteffekts in prädiktiv codierten Bildern vorgeschlagen. Auch bei diesem Empfangsszenario wird eine hohe visuelle Bildqualität erzielt und die Rekonstruktionsqualität herkömmlicher Verfahren um bis zu 15 dB übertroffen.
Author: Tadashi Shiomi
Author: Tadashi Shiomi
Author: Martin Cave
Author: Walter Fischer
Author: Jo Pierson
Author: United States. Advisory Committee on Public Interest Obligations of Digital Television Broadcasters
Author: Philip J. Cianci
Author: Katharina Grimme
Author: Arthur Lugmayr
Author: M. Sakthivel
Author: Tobias Tröger