| Y. Xirouhakis, Y. Avrithis and S. Kollias |
| Image Retrieval and Classification Using Affine Invariant B-Spline Representation and Neural Networks |
| Proceedings of IEE Colloquium on Neural Nets and Multimedia, London, UK |
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ABSTRACT
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| In this paper, a system for content-based image retrieval from video databases is introduced, using B-splines for affine invariant object representation. A small number of key-frames is extracted from each video sequence, which provide sufficient information about the video content. Color and motion segmentation and tracking is then employed for automatic extraction of video objects. A B-spline representation of the object contours is then obtained, which possesses important properties, such as smoothness, continuity and invariance under affine transformation. A neural network approach is used for supervised classification of video objects into prototype object classes. Finally, higher level classes can be constructed combining primary classes, providing the ability to obtain a high level of abstraction in the representation of each video sequence.
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| 01 January , 1998 |
| Y. Xirouhakis, Y. Avrithis and S. Kollias, "Image Retrieval and Classification Using Affine Invariant B-Spline Representation and Neural Networks", Proceedings of IEE Colloquium on Neural Nets and Multimedia, London, UK |
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