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Rautiainen M, Ojala T, Seppänen T (2005)
Content-based browsing in large news video databases.
Proc. 5th IASTED International Conference on Visualization, Imaging and Image Processing, Benidorm, Spain.
In this paper, we have evaluated the effectiveness of novel
content-based browsing paradigm in video retrieval and
compared it to the traditional model of content-based
querying with relevance feedback. The presented model,
cluster-temporal browsing, integrates feature clusters and
chronological video structure dynamically in a single
browsing view. A prototype of the browser has been
evaluated in 70 hour news video collection by 17 test users
in 24 predefined and highly semantic search topics. The
contributions of this paper are: comparison of cluster-temporal
browser against prevalent content-based query
paradigm and evaluation of the effect of various browser
parameters such as features and interface configurations in
search performance. The main conclusions of the paper are
that the cluster-temporal browsing surmounts traditional
search paradigm in semantic search topics and that low-level
visual features do not add to the search performance
that is obtained using text search on speech transcripts.
Full paper (PDF)