The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
This paper presents a framework to ensure application interoperability for heterogeneous IPTV client devices with different capabilities by providing application scalability. To support device independent application in IPTV service environment, we suggest a new XML schema (named Scalable Application Markup Language: SAML) based on MPEG-21 DIDL (Digital Item Declaration Language).
The success of the collaborative web-based MediaWiki platform, widely used in several projects to exchange knowledge created a new idea to use this system as a low-tech interoperability and repository layer for data providers, end users, developers and project partners. Facilitating the acquisition of knowledge for multimedia digital resources is a task that usually requires special purpose interfaces...
CARDS, a metamodel engine to describe and aggregate complex educational content is presented. A Java library and a web interface are available to developers in order to reify or wrap diverse tool outcomes in a declarative way. Data interoperability between heterogeneous tools is facilitated acting CARDS models like an Interlingua among them.
E-learning content material can be classified as text and multimedia. A common practice is to use text as backbone and multimedia as components to enrich the otherwise text-and-still-images-only documents. Nowadays e-learning content delivery over learning management systems (LMS) is becoming a common practice in academic institutions. Common authoring tools like office suites are good to generate...
Learning content delivery over LMS platforms has faced the problem of defining interoperable content standards. As content repository grows the ability to easily move content from one platform to another, in case of LMS change or content reallocation becomes more and more important. The use of XML compliant and application independent markup languages has become the more convenient choice because...
In this paper, we perform experiments on interoperability testing of presence service on IMS platform. Open source implementations such as an IMS platform, a presence server, an XCAP server, and IMS clients are deployed to establish testbed for interoperability testing of presence service. Test cases for SIMPLE presence protocol developed by OMA are applied to our testbed and test results are analyzed...
The UCT IMS Client is a free open source implementation of a 3GPP IMS Client. The project was started with the goal of creating a flexible and extensible code base for researchers and industry specialists to use the many communication services offered by the IMS. Since its inception in 2006 the client has grown, both in terms of its stability and its feature set, and is used worldwide by IMS enthusiasts...
Radio frequency identification (RFID) technology is recently intensively investigated as an effective solution for the next generation communication services in business processes. In this paper we propose an RFID-based location tracking system for distributed offices based on session initiation protocol (SIP). The proposed system is compatible with EPCglobal standard, but extension with SIP at application...
Digital TV systems open a new world of possibilities. Since December 2007 the Brazilian people has been experiencing this new technology. Among the most promising applications are the ones that enable TV-sets to work as the central processing unit of a house. This paper presents the most recent strategies to implement convergence models between digital TV systems and residential gateway platforms...
This paper presents a new type of context based on the authorisation of content adaptation in a generic multimedia scenario. After an overview of the state-of-the-art in the use and representation of context for multimedia content adaptation, we conclude that MPEG-21 Digital Item Adaptation is the most suited standardisation initiative in this area. We then present a flexible and interoperable way...
This paper proposes a new type of context description metadata based on the information extracted from the authorisation of adaptation in a generic multimedia scenario. After a deep study of the state-of-the-art in the use and representation of contexts for multimedia content adaptation, we conclude that MPEG-21 digital item adaptation is the most suited standardisation initiative in this area. We,...
Summary form only given. Multimedia coding technology, after about 20 years of active research, has delivered a rich variety of different and complex coding algorithms. Selecting an appropriate subset of these algorithms would, in principle, enable a codec designer to produce any desired trade-off between compression performance and implementation complexity. Currently, interoperability demands that...
In this paper, we have designed and implemented the system architecture for extensible mobile instant messaging and presence service over the IMS. More specifically, we have implemented the SIP proxy servers for IMS P-CSCF and S-CSCF for the realization of extensible mobile instant messaging and presence service. The salient feature of the proposed system architecture is that the architecture is based...
Bitstream binding language (BBL) provides an abstraction layer between XML multimedia containers and the way their resources and metadata are published in a bitstream. It allows multiple bindings from a single source document to facilitate interoperability and applicability of the multimedia content to a wide range of terminals and users. BBL introduces a number of features not found in other XML...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.