Multimedia modeling, indexing and presentation in distributed networked environments
Abstract
Multimedia systems are expected to support applications in almost every sector of our society. For such systems, the key information technology is the management of multimedia documents, as it is witnessed by the rapid proliferation of the Web. Synchronization and Quality of Service (QoS) management axe the two distinct multimedia application requirements for such systems. In this thesis, we focus on modeling, indexing and presentation aspects of multimedia documents in distributed network environments. Unlike traditional alphanumeric data, multimedia documents require synchronized integration of different media types. Such an integration in turn needs identification of temporal and spatial relationships among multimedia objects. For this purpose, we propose a formal synchronization model, called Generalized Object Composition Petri Net (GOCPN). By incorporating the presentation information, time semantics, event-based logic and flexible execution rules, the proposed GOCPN can represent temporal, spatial, content synchronizations and causal dependencies and independencies of events within multimedia documents. In order to achieve efficient retrieval and indexing of multimedia information in the databases, We extend GOCPN and other media data in an object-oriented domain and develop a framework for specifying meta-schema for multimedia information. Based on the models, we developed a query processing system for searching multimedia objects and documents in multiple dimensions (content, temporal and spatial) with fuzzy matching capabilities in distributed databases. To support broad ranges of applications, we present an approach for the construction of a comprehensive system for creation, storing, searching, management, retrieval and interactive presentation of multimedia documents. We demonstrate how the system realizes the easy access and manipulation of multimedia information by hiding distribution aspects of the multimedia objects and servers.
Degree
Ph.D.
Advisors
Ghafoor, Purdue University.
Subject Area
Electrical engineering|Computer science
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