Timing Issues in Multimedia Formats: Review of the Principles and Comparison of Existing Formats

Rogge, Boris; Bekaert, Jeroen; Walle, Rik Van de

doi:10.1109/tmm.2004.835213

Cited by 16 publications

(14 citation statements)

References 8 publications

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“…It supports distributed multimedia presentations, where media items are refer to as URLs. It provides styling and spatial composition, and a rich temporal model [19]. The biggest difference between the two languages is that while SMIL provides high-level constructs defining a restricted set of temporal relationships, NCL allows an author to create a set of custom relationships from a toolkit of language primitives as objects.…”

Section: Aspects Of Multimedia Document Formatsmentioning

confidence: 99%

A model for editing operations on active temporal multimedia documents

Jansen

César

Bulterman

2010

Proceedings of the 10th ACM Symposium on Document Engineering

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Inclusion of content with temporal behavior in a structured documents leads to such a document gaining temporal semantics. If we then allow changes to the document during its presentation, this brings with it a number of fundamental issues that are related to those temporal semantics. In this paper we study modifications of active multimedia documents and the implications of those modifications for temporal consistency. Such modifications are becoming increasingly important as multimedia documents move from being primarily a standalone presentation format to being a building block in a larger application. We present a categorization of modification operations, where each category has distinct consistency and implementation implications for the temporal semantics. We validate the model by applying it to the SMIL language, categorizing all possible editing operations. Finally, we apply the model to the design of a teleconferencing application, where multimedia composition is only a small component of the whole application, and needs to be reactive to the rest of the system. The primary contribution of this paper is the development of a temporal editing model and a general analysis which we feel can help application designers to structure their applications such that the temporal impact of document modification can be minimized. Categories and Subject Descriptors General TermsDesign, Experimentation, Languages. KeywordsDeclarative languages, Dynamic transformations, Multimedia application design. INTRODUCTIONIn the first generation of multimedia documents, the document format served as a simple transport wrapper for a byte stream of content. In the second generation, the document often contained additional temporal, styling and structuring primitive that allowed the transformation for interoperable playback on compliant multimedia players and some user interaction. In both cases, the multimedia content is dynamic, temporally and spatially constrained by the document, but the document itself is static: the relationships described by it do not change. Currently, multimedia documents are entering a new generation: the document is embedded as part of a larger application, where the content of the document may be adapted during rendering time, based on the needs and directives of the embedding application. These adaptations can change the underlying multimedia data, but also the general presentation structure. Examples of such applications include live editing of broadcast content [10] and interactive multimedia applications that make use of Web services [11]. In this paper, we use the term multimedia transformations to refer to the process of adapting various aspects of a multimedia document while it is playing.A representative example of dynamic multimedia applications is a video conferencing system that allows multiparty playing of an electronic board game [23]. The application needs to support multi-party social communication, guided by verbal and physical cues from users, as well as camera actions that are...

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Section: Aspects Of Multimedia Document Formatsmentioning

confidence: 99%

A model for editing operations on active temporal multimedia documents

Jansen

César

Bulterman

2010

Proceedings of the 10th ACM Symposium on Document Engineering

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“…Real-time Application Support: MORE provides scenes and scene updates that are streamed in real time along with associated media. QoS Parameters: In addition to standard QoS parameters defined for multimedia applications [10], we define a new set of QoS parameters to cater specifically to rich media solutions as described in Section 6.…”

Section: More Clientmentioning

confidence: 99%

More: A Mobile Open Rich Media Environment

Setlur

Çapın

Chitturi

et al. 2006

2006 IEEE International Conference on Multimedia and Expo

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ABSTRACT'Rich media' is a term that implies the integration of all of the advances we have made in the mobile space delivering music, speech, text, graphics and video. This is true, but it is more than the sum of its parts. Rich media is the ability to deliver these modalities, to interact with these modalities, and to do it in a way that allows for the construction, delivery and use of compelling mobile services in an effective and economic manner. In this paper, we introduce a system called Mobile Open Rich-media Environment ('MORE') that helps realize such mobile rich media services, combining various technologies of W3C, OMA, 3GPP and IETF standards. The different components of the system include formatting, packaging, transporting, rendering and interacting with rich media files and streams.

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“…Following Criterion 2.2.3, object models must offer the possibility to express flexible, high-level temporal relationships. According to [21,24], this synchronization problem can be reduced to the description of the relations within a time scenario based on a temporal model. When defining a qualitative temporal model, we can start from timestamp-based or interval-based temporal relationships.…”

Section: Criterion 4: Temporal/spatial Informationmentioning

confidence: 99%

“…When defining a qualitative temporal model, we can start from timestamp-based or interval-based temporal relationships. In order to be able to compare these two types of temporal information, a relationship between the two has been proposed by Rogge et al [21]. The result obtained from [21,24] leads to 29 interval relationships corresponding to the timestamp relationships.…”

Section: Criterion 4: Temporal/spatial Informationmentioning

confidence: 99%

Packaging models for the storage and distribution of complex digital objectsin archival information systems: a review of MPEG-21 DID principles

2005

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In recent years, the number of organizations making digital information available has increased dramatically. This evolution has encouraged the development of various approaches to represent complex digital objects. Approaches that are of specific relevance to the digital library and archiving community include the Metadata Encoding and Transmission Standard (METS), the Content Packaging XML Binding of the Instructional Management System (IMS) project, and the Sharable Content Object Reference Model (SCORM). The MPEG-21 Digital Item Declaration (MPEG-21 DID) is yet another packaging approach that, so far, has received little attention in the digital library community. The primary goal of this article is to offer a method to compare these packaging approaches in the context of the needs of the digital library community and the rising digital preservation programs. The contribution of this paper is the definition of an integrated reference framework, based on both the ISO OAIS Reference Model and a set of additional significant properties that affect the quality, usability, encoding, and behavior of complex digital objects. This article also gives a brief insight into MPEG-21 DID and examines its potential relevance by showing the results obtained from applying the proposed reference framework.

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Timing Issues in Multimedia Formats: Review of the Principles and Comparison of Existing Formats

Cited by 16 publications

References 8 publications

A model for editing operations on active temporal multimedia documents

A model for editing operations on active temporal multimedia documents

More: A Mobile Open Rich Media Environment

Packaging models for the storage and distribution of complex digital objectsin archival information systems: a review of MPEG-21 DID principles

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