Enriching Multimedia Content Description for Broadcast Environments: From a Unified Metadata Model to a New Generation of Authoring Tool

Several consumer electronic devices that allow capturing digital multimedia content (like mp3 recorders, digital cameras, DVD camcorders, smart phones etc.) are available today. These devices have allowed both the amateur and the professional users to produce large volumes of digital multimedia material, which, together with the traditional media objects digitized recently (using scanners, audio and video digitization devices) form a huge distributed multimedia information source. The multimedia material that is available today is usually organized in independent multimedia information sources, developed on top of different software platforms. The Internet, the emergence of advanced network infrastructures that allow for the fast, efficient and reliable transmission of multimedia content and the development of digital multimedia content services on top of them form an open multimedia consumption environment. In this environment, the users access the multimedia material either through computers or through cheap consumer electronic devices that allow the consumption and management of multimedia content. The users of such an open environment need to be able to access the services offered by the different vendors in a transparent way and to be able to compose the different atomic services (like, for example, multimedia content filtering) into new, composite ones. In order to fulfill this requirement, interoperability between the multimedia content services offered is necessary. Interoperability is achieved, at the syntactic level, through the adoption of standards. At the semantic level, interoperability is achieved through the integration of domain knowledge expressed in the form of domain ontologies. An ontology is a logical theory accounting for the intended meaning of a formal vocabulary, i.e. its ontological commitment to a particular conceptualization of the world (Guarino, 1998). The standard that dominates in multimedia content description is the MPEG-7 (Salembier, 2001), formally known as Multimedia Content Description Interface. It supports multimedia content description from several points of view, including media information, creation information, structure, usage information, textual annotations, media semantics, and low-level visual and audio features. Since the MPEG-7 allows the structured description of the multimedia content semantics, rich and accurate semantic descriptions can be created and powerful semantic retrieval and filtering services can be built on top of them. It has been shown, in our previous research (Tsinaraki, Fatourou and Christodoulakis, 2003), that domain ontologies capturing domain knowledge can be expressed using pure MPEG-7 constructs. This way, domain knowledge can be integrated in the MPEG-7 semantic descriptions. The domain knowledge is subsequently utilized for supporting semantic personalization, retrieval and filtering and has been shown to enhance the retrieval precision (Tsinaraki, Polydoros and Christodoulakis, 2007). Although multimedia content description is now standardized through the adoption of the MPEG-7 and semantic multimedia content annotation is possible, multimedia content retrieval and filtering (especially semantic multimedia content retrieval and filtering), which form the basis of the multimedia content services, are far from being successfully standardized.

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Assessing Faculty Perception of PowerPoint as a Digital Content Authoring Tool

Redesigning Teaching, Leadership, and Indigenous Education in the 21st Century - Advances in Educational Technologies and Instructional Design ◽

10.4018/978-1-7998-5557-6.ch002 ◽

2021 ◽

pp. 26-46

Author(s):

Christopher Francique

Keyword(s):

Single Point ◽

Authoring Tool ◽

Digital Content ◽

Multimedia Content ◽

Faculty Perception ◽

Post Intervention ◽

Traditional Use ◽

Multimedia Authoring ◽

Presentation Software ◽

Presentation Tool

This study sought to identify the perceptions of faculty in utilizing Microsoft PowerPoint as an authoring tool. This research posited that Microsoft PowerPoint has some multimedia authoring features and can possibly be used as a single-point multimedia authoring tool for faculty to utilize to create multimedia content for courses that they teach. However, PowerPoint is traditionally used as a presentation software, and despite its multimedia authoring capabilities, faculty may not be aware or even willing to use such features, having grown accustomed to their traditional use of the software. Nonetheless, from this study, it confirms that faculty are biased to seeing PowerPoint as a presentation tool. However, the study revealed that despite the initial myopia and limitations, post-intervention, participants showed a keen interest in using PowerPoint beyond the realm of presentations.

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Ontology-Based Multimedia Authoring Tool for Adaptive E-Learning

International Journal of Distance Education Technologies ◽

10.4018/jdet.2010100104 ◽

2010 ◽

Vol 8 (4) ◽

pp. 42-65 ◽

Cited By ~ 1

Author(s):

Lawrence Y. Deng ◽

Huan-Chao Keh ◽

Yi-Jen Liu

Keyword(s):

Multimedia Data ◽

Authoring Tool ◽

Multimedia Content ◽

Distributed Network ◽

New Approach ◽

Multimedia Authoring ◽

Distributed Approach ◽

E Learning ◽

Audio Video

More video streaming technologies supporting distance learning systems are becoming popular among distributed network environments. In this paper, the authors develop a multimedia authoring tool for adaptive e-learning by using characterization of extended media streaming technologies. The distributed approach is based on an ontology-based model. Suppose a well-known teacher is giving a lecture/presentation to his student. Because of time constraints and other commitments, many students cannot attend. The main goal of the authors’ system is to provide a feasible method to record and represent a lecture/presentation using a browser with the windows media services. This system requires flexible support for the modeling of multimedia content models and supports possible interactivity, transfer of streams multimedia data such as audio, video, text, and annotations using network facilities. The authors propose a new approach for the modeling of reusable and adaptable multimedia content. A comprehensive system for advanced multimedia content production is also developed. This approach significantly impacts and supports the multimedia presentation authoring processes in terms of methodology and commercial aspects.

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Multimedia Content Description and Standards

10.1007/springerreference_72889 ◽

2012 ◽

Keyword(s):

Multimedia Content ◽

Content Description

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Management of Multimedia Semantics Using MPEG-7

Managing Multimedia Semantics ◽

10.4018/978-1-59140-569-6.ch008 ◽

2011 ◽

pp. 182-192

Author(s):

Uma Srinivasan ◽

Ajay Divakaran

Keyword(s):

Multimedia Applications ◽

Point Of View ◽

Multimedia Content ◽

Content Description ◽

Multimedia Semantics ◽

Pros And Cons ◽

Content Semantics

This chapter presents the ISO/IEC MPEG-7 Multimedia Content description Interface Standard from the point of view of managing semantics in the context of multimedia applications. We describe the organisation and structure of the MPEG-7 Multimedia Description schemes which are metadata structures for describing and annotating multimedia content at several levels of granularity and abstraction. As we look at MPEG-7 semantic descriptions, we realise they provide a rich framework for static descriptions of content semantics. As content semantics evolves with interaction, the human user will have to compensate for the absence of detailed semantics that cannot be specified in advance. We explore the practical aspects of using these descriptions in the context of different applications and present some pros and cons from the point of view of managing multimedia semantics.

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