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|Title:||Video classification using spatial-temporal features and PCA|
|Keywords:||Principal component analysis;Audio-visual systems;Streaming media;Image classification|
|Citation:||Proceedings of IEEE International Conference on Multimedia and Expo, (ICME '03), 6-9 July, 2003, 3: pp. 485 - 488, (2003)|
|Abstract:||We investigate the problem of automated video classification by analysing the low-level audio-visual signal patterns along the time course in a holistic manner. Five popular TV broadcast genre are studied including sports, cartoon, news, commercial and music. A novel statistically based approach is proposed comprising two important ingredients designed for implicit semantic content characterisation and class identities modelling. First, a spatial-temporal audio-visual "concatenated" feature vector is composed, aiming to capture crucial clip-level video structure information inherent in a video genre. Second, the feature vector is further processed using principal component analysis to reduce the spatial-temporal redundancy while exploiting the correlations between feature elements. This gives rise to a compact representation fro effective probabilistic modelling of each video genre. Extensive experiments are conducted assessing various aspects of the approach and their influence on the overall system performance.|
|Appears in Collections:||Dept of Computer Science Research Papers|
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