Abstract
Improvements in digital technology have made possible the production and distribution of huge quantities of digital multimedia data. Tools for high-level multimedia documentation are becoming indispensable to efficiently access and retrieve desired content from such data. In this context, automatic genre classification provides a simple and effective solution to describe multimedia contents in a structured and well understandable way. We propose in this article a methodology for classifying the genre of television programmes. Features are extracted from four informative sources, which include visual-perceptual information (colour, texture and motion), structural information (shot length, shot distribution, shot rhythm, shot clusters duration and saturation), cognitive information (face properties, such as number, positions and dimensions) and aural information (transcribed text, sound characteristics). These features are used for training a parallel neural network system able to distinguish between seven video genres: football, cartoons, music, weather forecast, newscast, talk show and commercials. Experiments conducted on more than 100 h of audiovisual material confirm the effectiveness of the proposed method, which reaches a classification accuracy rate of 95%.











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Notes
Consider, for example, the YouTube video site—http://www.youtube.com/ (last accessed: May 13th, 2008), which allows users to upload, watch and share multimedia video files.
http://www.aber.ac.uk/media/Documents/intgenre/intgenre.html (last accessed: November 14th, 2007)
Available online at: http://www-nlpir.nist.gov/projects/t2002v/t2002v.html (last accessed: September 14th, 2007).
Richard Bellman coined the term “curse of dimensionality” to describe the difficulty of evaluating Probability Density Functions on high-dimensional feature spaces [2].
Available online at: http://www.nlog-project.org (Last accessed: September 28th, 2007).
See http://www.facedetection.com to find many available resources about the face detection task (last accessed: October 10th, 2007).
Using the Fraunhofer IIS Real Time Face Detector tool, http://www.iis.fraunhofer.de (last accessed: March 28th, 2008).
See Table 1 to recall the meaning of the acronyms for the programme surrogate features.
See http://www.museum.tv/archives/etv/T/htmlT/talkshows/talkshows.htm for an introduction to the history of TV talk shows (Last accessed: September 27th, 2007).
A demo version (valid for 60 days) of the RTFaceDetection library is available for download at: http://www.iis.fraunhofer.de/EN/bf/bv/kognitiv/biom/dd.jsp (last accessed: November 21st, 2007).
http://www.itc.it/irst (last accessed: May 13th, 2008).
http://leenissen.dk/fann (last accessed: May 13th, 2008).
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Maurizio Montagnuolo is a PhD student supported by EuriX s.r.l., Turin, Italy— http://www.eurixgroup.com.
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Montagnuolo, M., Messina, A. Parallel neural networks for multimodal video genre classification. Multimed Tools Appl 41, 125–159 (2009). https://doi.org/10.1007/s11042-008-0222-3
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DOI: https://doi.org/10.1007/s11042-008-0222-3