Fast analysis of scalable video for adaptive browsing interfaces (CROSBI ID 149336)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Mrak, Marta ; Ćalić, Janko ; Kondoz, Ahmet
engleski
Fast analysis of scalable video for adaptive browsing interfaces
Driven by a high demand for adaptive video interfaces and recent advances in scalable video coding technology, this work introduces a framework for video summarisation and browsing by utilising inherently hierarchical compressed-domain features of scalable video and efficient dynamic video summarisation. This approach enables instant adaptability of generated video summaries to available channel bandwidth as well as display resources. By utilising compressed domain features an efficient hierarchical analysis of motion activity at different layers of complexity is achieved. Exploiting a contour evolution algorithm, a scale space of temporal video descriptors is generated, enabling rapid video summarisation. Given the spatial resources of the terminal display and generated video summary, the final browsing layout is generated utilising an unsupervised robust spectral clustering technique and a fast discrete optimisation algorithm. Results show excellent scalability of the video summaries and good algorithm efficiency.
scalable video coding; compressed domain analysis; video summarisation
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Podaci o izdanju
113 (3)
2009.
425-434
objavljeno
1077-3142
10.1016/j.cviu.2008.08.004
Povezanost rada
Elektrotehnika, Računarstvo