An Overview of the MPEG-7 Description Definition Language (DDL) Proposals

This paper describes the DDL proposals submitted in response to the MPEG-7 Call for Proposals and the results of their evaluation at the MPEG-7 AHG Test and Evaluation Meeting in Lancaster in February 1999. It also describes the proposal from DSTC which was considered to provide the best starting point for a DDL and the features from other proposals which were considered to be of value for future consideration and possible integration. It concludes with an overview of the current state of the MPEG-7 DDL work

Capture and transfer of metadata during video production

Video production is a complex process that requires the capture and annotation of video sequences that become assembled together into a final presentation. At different stages of the process information is captured and associated with the video sequence, to be used by some other process at some later stage. In this paper we go through the video production chain step by step and identify where media or metadata is captured and express this in terms of an associated proposed canonical mode

Visualizing Cat GPS Data: A Study of User Requirements

Domestic cats are usually allowed to roam freely outside without human supervision, which creates a new market for consumer GPS tracking devices. However, current GPS devices and the supporting interfaces and visualizations are usually created with a focus on dog owners. To acquire more insight into the needs of cat owners in relation to GPS devices for domestic cats, an iterative prototype-based study was conducted. This paper presents the requirements for the visu- alization of GPS data of domestic cats that were determined in collaboration with cat owners during the study. Inter- views and multiple prototypes were used as tools to identify and re ne these requirements and were mostly based on cat owners’ concerns and curiosity for their cats’ location. The most important requirements for a cat owner-centered GPS visualization were being able to request the live location and being alerted if the cat might be in trouble

Generating Media Stories - Play It Again, Sam

New types of knowledge spaces, such as the Semantic Web, allow for yet uncharted forms of knowledge exploration and social relationships. Such interactive, open and multimodal environments sustain the activation of articulation expressions that form the basis of adaptive discourses. In this paper we are in particular interested what story generation requires, in such a context, from authors and how that reflects on the accessibility of the information to users. The examples are taken form the domain of documentary making

Everything You Wanted to Know About MPEG-7: Part 2

Part 1 of this article provided an overview of the development, functionality, and applicability of MPEG-7. In Part 2 we discuss the description of MPEG-7 s concepts, terminology, and requirements. We then compare MPEG-7 with other approaches to multimedia content description

Everything You Wanted to Know About MPEG-7: Part 1

Part I of this article provides an overview of the development, functionality, and applicability of MPEG-7. We ll first present the role of MPEG-7 within the context of past MPEG standards. We then outline ideas of what should be possible using MPEG-7 technology. In Part II, we ll discuss the description of MPEG-7 s concepts, terminology, and requirements. We ll then compare MPEG-7 to other approaches on multimedia content description

Denotative and connotative semantics in hypermedia: proposal for a semiotic-aware architecture

In this article we claim that the linguistic-centred view within hypermediasystems needs refinement through a semiotic-based approach before real interoperation between media can be achieved. We discuss the problems of visual signification for images and video in dynamic systems, in which users can access visual material in a non-linear fashion. We describe how semiotics can help overcome such problems, by allowing descriptions of the material on both denotative and connotative levels. Finally we propose an architecture for a dynamic semiotic-aware hypermedia system

Towards a syntax for multimedia semantics

This article describes the current state of the art on representing the fouressential conceptual facets of a multimedia unit, namely the form and substance of content and the form and substance of its expression, and points to the still un solved problems regarding the syntax for media semantics. We first provide a brief overview of the general features of the MPEG-7 standard and its different parts. This serves as a description of the state of the art in content description for audio-visual media. We then analyse the ability of one of these parts for its capability to define structures for describing media semantics. We describe the problems of two currently conflicting MPEG-7 representations of expression-based media semantic, which should be equivalent. We then discuss high-level aspects of media semantics, namely the general problems of an ontology for media semantics. Finally, we talk about the problems of applying the theoretical conceptsto real applications

Context aware guidance for multimedia authoring: harmonizing domain and discourse knowledge

This paper presents an approach to assist authors during the authoring of multimedia presentations. We extend existing authoring support by integrating processes of topic identification, content collection and discourse structure building in a single environment. This integration allows identification of the context of the authoring process. Our approach combines this process context awareness with explicit domain and discourse knowledge to steer system suggestions. We evaluate our approach with an experimental system prototyp