Fast analysis of scalable video for adaptive browsing interfaces
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Mrak, M, Ćalić, J and Kondoz, A (2009) Fast analysis of scalable video for adaptive browsing interfaces Computer Vision and Image Understanding, 113 (3). 425 - 434. ISSN 1077-3142
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Official URL: http://dx.doi.org/10.1016/j.cviu.2008.08.004
Abstract
Driven by a high demand for user-centred video interfaces and recent advances in scalable video coding technology, this work introduces a novel framework for video browsing by utilising inherently hierarchical compressed-domain features of scalable video and ecient dynamic video summarisation. This approach enables instant adaptability of generated video summaries to user requirements, available channel bandwidth as well as display size. By utilising compressed domain features an ecient hierarchical analysis of motion activity at dierent layers of complexity is achieved. Exploiting a contour evolution algorithm, a scale space of temporal video descriptors is generated, enabling dynamic video summarisation in real-time. Given the spatial resources of terminal display and generated video summary, the nal browsing layout is generated utilising an unsupervised robust spectral clus- tering technique and a fast discrete optimisation algorithm. Results show excellent scalability of the video browsing interface and good algorithm efficiency.
| Item Type: | Article |
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| Additional Information: | NOTICE: This is the author’s version of a work that was accepted for publication in Computer Vision and Image Understanding. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Computer Vision and Image Understanding, 113(3), March 2009, DOI: 10.1016/j.cviu.2008.08.004 |
| Divisions: | Faculty of Engineering and Physical Sciences > Electronic Engineering > Centre for Vision Speech and Signal Processing |
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| ID Code: | 532147 |
| Deposited By: | Symplectic Elements |
| Deposited On: | 11 May 2012 15:57 |
| Last Modified: | 10 May 2013 14:33 |
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