Multimedia Data Model for Advanced Image Information System

摘要

An image information system requires the integration of image processing, database and knowledge management facilities. The paper proposes a multimedia data model CHEMIN as a conceptual design principle for image database systems. The CHEMIN model provides data-independent knowledge representation and mathematical basis for applying multimedia data operations. The CHEMIN model formalizes the semantic relationships by categories and functors based on category theory. In the model the semantic relationships are described by the following three category Worlds: image entities (entity); image data structures (media); and algorithms for image operations (method). These relationships are internally described and referred to as predicates. The paper also describes mathematical formalization of the media management, user's view mechanism and multimedia query processing adopted in the prototype systems. The CHEMIN model provides a flexible object-oriented mechanism in image information systems.