Structured temporal Composition of Multimedia Data
نویسندگان
چکیده
Many existing models for temporal composition of multimedia data are based on the Allen relations [1]. However, the relations are not suitable for composition: they are descriptive (do not re ect causal dependency between intervals), they depend on interval durations (changing duration may modify relations), and they may lead to temporal inconsistency (contradictory relations speci ed for intervals). We de ne a set of operators expressing causal relations between intervals. They can be used to form nested interval expressions. Interval expressions are independent of interval durations and allow encapsulation and structured nesting, so that it is possible to de ne complex multimedia presentations in a well-structured manner.
منابع مشابه
Interval Expressions - A Functional Model for Interactive Dynamic Multimedia Presentations
We propose a new model for structured temporal composition of interactive dynamic multimedia presentations. It extends the notion of basic media segments to include executable code, live feeds, and links. The model is based on Interval Expressions that involve media segments of unknown duration.
متن کاملMultimedia Authoring: A 3D Interactive Visualization Interface based on a Structured Document Model
Multimedia authoring process is inherently a complex and tedious task, users have to specify all the details of a multimedia presentation (temporal coordination, user interaction and spatial placement of data on the user display). In the same time they have to keep in mind a global overview of the entire document. Current document systems uses scripting languages or timelines to specify multime...
متن کاملAn Object-Oriented Query Language for Multimedia Database Systems
In this paper, we propose a general-purpose multimedia query language that is built upon a set of generalized n-ary spatio-temporal relations and object-oriented modelling paradigm for multinnedia data. We present a grammar for the query language and elaborate how various functiona;!ities such as declartion of multimedia data, specification of spatio-temporal logic, expressio~l of spatio-tempor...
متن کاملFlexible disk scheduling for multimedia presentation servers
Objects composing a multimedia presentation need to be delivered based on the temporal relationships specified by the author(s). Hence, even discrete media objects (that do not normally have any real-time characteristics) have temporal constraints on their presentations. Composition of multimedia presentations can vary widely. Based on their composition, we can consider three broad categories o...
متن کاملThe Amsterdam Hypermedia Model: Extending Hypertext to Support Real Multimedia
We present a model of hypermedia that allows the combination of “hyper-structured” information with dynamic multimedia information. The model is derived by extending the Dexter hypertext reference model and the CMIF multimedia model. The Amsterdam hypermedia model allows the following, in addition to the model provided by Dexter: • the composition of multiple dynamic media, in order to specify ...
متن کامل