Caiwei L.,Beihang University |
Caiwei L.,University of the Basque Country |
Sato T.,Institute For Rundfunktechnik |
Pablo A.,University of the Basque Country |
And 6 more authors.
IEEE International Symposium on Broadband Multimedia Systems and Broadcasting, BMSB | Year: 2014
This paper analyzes a methodology to evaluate the efficiency of different network configurations and associated planning parameters for delivering DVB-T2 services to fixed and portable receivers, based on theoretical SFN networks. The impact of some of the parameters and calculation algorithms on the final coverage percentage values for different SFN network architectures has been studied from simulations. The results have shown that the synchronization strategy and the signal combination method have a relevant impact on the final coverage percents within the service area both for portable and fixed reception. © 2014 IEEE.
Zorrilla M.,Vicomtech IK4 |
Borch N.,Norut |
Daoust F.,W3C ERCIM |
Erk A.,Institute For Rundfunktechnik |
And 2 more authors.
Personal and Ubiquitous Computing | Year: 2015
HTML5 is driving a strong trend towards interoperable Web-based applications, enabling a wider range of devices to run this kind of applications. The key challenge of next-generation media applications is to federate cooperative devices to provide multi-device experiences overcoming current second screen solutions within the connected TV industry. There is a gap on the experience of users, since they perceive devices as isolated pieces of applications when they would prefer to have a single experience through multiple devices at the same time. This paper proposes a unified methodology and a common specification over Web Components for the adaptation of a single application, seamlessly running different instances on one or more devices simultaneously, according to the multi-device context of the user and the specific features of the devices. The solution presented in this paper extends current Web standards towards an interoperable architecture and offers broadcasters and media application developers the possibility to easily design applications that will automatically provide a unique consistent experience across the connected devices. The architectural design is targeted to be included in the roadmap of the standards. © 2015, Springer-Verlag London.
Sato T.,Institute For Rundfunktechnik |
Roland B.,Institute For Rundfunktechnik |
Ivan P.,University of the Basque Country |
Pablo A.,University of the Basque Country
IEEE International Symposium on Broadband Multimedia Systems and Broadcasting, BMSB | Year: 2015
This paper presents a comparison between two planning approaches to DVB-T2 Single Frequency Networks (SFN). The first technique is regarded as theoretical and it is based on theoretical hexagonal lattices, where terrain impact is disregarded, the transmitting power and equivalent height are constant parameters over the entire service area. The second one is based on the use of commercial network planning tools that include all the terrain, population, network infrastructure databases as well as propagation related parameters. The paper highlights the motivation for each one of the planning procedures and presents a comparison between them using the planning example of a wide service area in the south of Germany. In general, the hexagon model is able to describe some broad network characteristics but fails to describe the coverage situation in detail, leading to too optimistic results. The differences are associated mainly to effective height and terrain impact on propagation calculations. © 2015 IEEE.
Spikofski G.,Institute For Rundfunktechnik |
Altendorf P.,Institute For Rundfunktechnik |
Hartmann C.,Institute For Rundfunktechnik
132nd Audio Engineering Society Convention 2012 | Year: 2012
The problem of annoying loudness jumps occurring between different TV and radio stations or programs became generally known over the last decades. Since the publication of the recommendations ITU-R BS.1770-1 (in 2006)  and EBU-R 128 (in 2010)   and the actual version of the ITU Recommendation BS.1770-2 (2011), more and more tools have become available that allow loudness harmonisation in broadcasting. The European research project NoTube  integrates loudness harmonisation in its research concepts in order to investigate the applicability of these tools in web environments where the situation is even worse. The user evaluation of different loudness and loudness range adaptations presented in this paper was carried out online and thus considers real web conditions. In particular the interdependence between parameters of the listening environment and the loudness/loudness range adaptations are highlighted based on the results of nearly 100 participants.
Elser M.,Institute For Rundfunktechnik |
Mies R.,Institute For Rundfunktechnik |
Altendorf P.,Institute For Rundfunktechnik |
Messina A.,Center for Research and Technological Innovation |
And 4 more authors.
International Journal of Web Information Systems | Year: 2015
Purpose-This paper aims to propose a service-oriented framework for performing content annotation and search, adapted to the task context. Media production workflows are becoming increasingly distributed and heterogeneous.The tasks of professionals in media production can be supported by automatic content analysis and search and retrieval services. Design/methodology/approach-The processes of the framework are derived top-down, starting from business goals and scenarios in audiovisual media production. Formal models of tasks in the production workflow are defined, and business processes are derived from the task models. A software framework enabling the orchestrated execution of these models is developed. Findings-This paper presents a framework that implements the proposed approach called Metadata Production Management Framework (MPMF). The authors show how a media production workflow for a real-world scenario is implemented using the MPMF. Research limitations/implications-The authors have demonstrated the feasibility of a model-based approach for media processing. In the reification step, there is still information that needs to be provided in addition to the task models to obtain executable processes. Future research should target the further automation of this process. Practical implications-By means of this approach, the implementation of the business process defines the workflow, whereas the services that are actually used are defined by the configuration. Thus, the processes are stable and, at the same time, the services can be managed very flexibly. If necessary, service implementations can also be completely replaced by others without changing the business process implementation. Originality/value-The authors introduce a model-based approach to media processing and define a reification process from business-driven task models to executable workflows. This enables a more task-oriented design of media processing workflows and adaptive use of automatic information extraction tools. © 2015 Emerald Group Publishing Limited.
Merkel K.,Institute For Rundfunktechnik
2011 14th ITG Conference on Electronic Media Technology, CEMT 2011 - Conference Proceedings | Year: 2011
Hybrid broadcast broadband TV (HbbTV) is a European initiative for providing both broadcast and broadband/web content on a flat-panel screen in the living room. The HbbTV specification introduces only a few new technical components; it is mainly based on existing standards. In this respect, it represents a specific profile of available technologies, rather than a completely new technical development. This paper gives an overview over the architecture of HbbTV and the current status of the market introduction. © 2011 Informatik Centrum.
Ziegler C.,Institute For Rundfunktechnik
Proceedings 2013 IEEE 3rd International Conference on Consumer Electronics - Berlin, ICCE-Berlin 2013 | Year: 2013
The article presents an open standards-based framework that enables bi-directional communication between web applications for TV and second-screen devices. It also provides mechanisms for the automatic launch of applications from the TV on the second screen. Due to its compliance to the HbbTV standard, the framework allows broadcasters to create novel interactive applications with direct programme relation potentially targeting millions of already deployed devices on the market. © 2013 IEEE.
Fassold H.,Joanneum Research |
Wechtitsch S.,Joanneum Research |
Hofmann A.,Joanneum Research |
Bailer W.,Joanneum Research |
And 6 more authors.
Proceedings - 2012 IEEE International Symposium on Multimedia, ISM 2012 | Year: 2012
Automatic quality control for audiovisual media is an important tool in the media production process. In this paper we present tools for assessing the quality of audiovisual content in order to decide about the reusability of archive content. We first discuss automatic detectors for the common impairments noise and grain, video breakups, sharpness, image dynamics and blocking. For the efficient viewing and verification of the automatic results by an operator, three approaches for user interfaces are presented. Finally, we discuss the integration of the tools into a service oriented architecture, focusing on the recent standardization efforts by EBU and AMWA's Joint Task Force on a Framework for Interoperability of Media Services in TV Production (FIMS). © 2012 IEEE.
Hesselman C.,Novay |
Abbadessa D.,NEC Europe |
Van Der Beek W.,Philips |
Gorgen D.,Philips |
And 9 more authors.
IEEE Communications Magazine | Year: 2010
Today's consumers have a wide variety of interactive media and services at their disposal, for instance, through IPTV networks, the Internet, and in-home and mobile networks. A major problem, however, is that media and services do not interoperate across networks because they use different user identities, metadata formats, and signaling protocols, for example. As a result, users cannot easily combine media and services from different network infrastructures and share them in an integrated manner with their family and friends. In addition to limiting people's media experience, this also hinders the introduction of new services and business models as providers cannot easily develop and operate cross-network services. The goal of our work is to overcome this problem by means of an open and intelligent service platform that allows applications to easily combine media and services from different network infrastructures, and enables consumers to easily share them in an integrated way. The platform includes support for managing multi-user sessions across networks, context-aware recommendations, and cross-network identity management. While there has been prior work on platforms for converged media, our platform is unique in that it provides open, intelligent, and interoperable facilities for sharing media and services across network infrastructures. In addition, our work involves several specific innovations, for instance, pertaining to cross-network session management and synchronization. In this article we discuss the platform, its most important enabling services, and some of the applications we have built on top of it. We also briefly consider the new kinds of business models our platform makes possible. © 2010 IEEE.
Zwicklbauer M.,Fraunhofer Institute for Open Communication Systems |
Fuhrhop C.,Fraunhofer Institute for Open Communication Systems |
Broadbent M.,Lancaster University |
Miccoli S.,Fincons |
And 3 more authors.
TVX 2016 - Proceedings of the ACM International Conference on Interactive Experiences for TV and Online Video | Year: 2016
This paper presents the current status of the Multi-Platform Application Toolkit, an extensible platform for the simple creation of interactive multi-media applications for connected TVs. Developing applications from scratch requires considerable resources. For this reason, they are often considered too costly for use alongside short-run programming or in response to spontaneous real-world events. The situation is exacerbated when multiple target platforms are considered, such as HbbTV and Open Web. MPAT addresses this using an approach based on WordPress, aiming to make application development affordable and sustainable. It also creates a new eco-system for content creators, theme and plug-in developers. With MPAT, media companies can semi-automatically author their own set of customised applications. These are then populated with content by the editorial staff, or by linking MPAT to existing content management solutions. Copyright is held by the owner/author(s).