出版社：Know-Center, Graz in cooperation with IICM, Graz University of Technology
摘要：We present a case study of establishing a description infrastructure for media
processing systems. The description infrastructure consists of an internal
metadata model and access tools for using it. Based on an analysis of
requirements, we selected, out of a set of candidates, MPEG-7 as the basis of
our metadata model. The openness and generality of MPEG-7 allow using it in a
broad range of applications, but increase complexity and hinder
interoperability. Profiling has been proposed as a solution, with the focus on
selecting and constraining description tools. We have defined the Detailed
Audiovisual Profile as the profile to be used in our metadata model which
includes semantic constraints in order to ensure interoperability between MPEG-7
based systems. For practical work with the metadata model, we have implemented a
MPEG-7 library and a client/server document access infrastructure.
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