Abstract
This work presents an efficient approach for the calculation of the MPEG-7 descriptor for motion activity from scalable-coded video sequences, which include scalable motion vectors and variable block sizes. We first describe the adaptation of the constant block-size assumption of the MPEG-7 descriptor to this new coding domain. Then we compare the results obtained with those for MPEG-1 videos in the context of a common application of this descriptor: video summarization. The comparable quality of these results and the gain in efficiency support the presented approach.
Work partially supported by the European Commission under the 6th Framework Program (FP6-001765 – aceMedia Project) and by the Spanish Government under Project TIN2004-07860-C02-01.
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Herranz, L., Tiburzi, F., Bescós, J. (2006). Extraction of Motion Activity from Scalable-Coded Video Sequences. In: Avrithis, Y., Kompatsiaris, Y., Staab, S., O’Connor, N.E. (eds) Semantic Multimedia. SAMT 2006. Lecture Notes in Computer Science, vol 4306. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11930334_12
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DOI: https://doi.org/10.1007/11930334_12
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