Temporal video transcoding from H.264/AVC-to-SVC for digital TV broadcasting

R. Garrido-Cantos (), J. Cock (), J. L. Martinez (), S. Leuven (), P. Cuenca () and A. Garrido ()
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R. Garrido-Cantos: University of Castilla-La Mancha
J. Cock: Ghent University-iMinds
J. L. Martinez: University of Castilla-La Mancha
S. Leuven: Ghent University-iMinds
P. Cuenca: University of Castilla-La Mancha
A. Garrido: University of Castilla-La Mancha

Telecommunication Systems: Modelling, Analysis, Design and Management, 2016, vol. 61, issue 1, No 4, 41 pages

Abstract: Abstract Mobile digital TV environments demand flexible video compression like scalable video coding (SVC) because of varying bandwidths and devices. Since existing infrastructures highly rely on H.264/AVC video compression, network providers could adapt the current H.264/AVC encoded video to SVC. This adaptation needs to be done efficiently to reduce processing power and operational cost. This paper proposes two techniques to convert an H.264/AVC bitstream in Baseline (P-pictures based) and Main Profile (B-pictures based) without scalability to a scalable bitstream with temporal scalability as part of a framework for low-complexity video adaptation for digital TV broadcasting. Our approaches are based on accelerating the interprediction, focusing on reducing the coding complexity of mode decision and motion estimation tasks of the encoder stage by using information available after the H.264/AVC decoding stage. The results show that when our techniques are applied, the complexity is reduced by 98 % while maintaining coding efficiency.

Keywords: Mobile digital TV; Videoadaptation; Data mining; H.264/AVC; Scalable video coding (SVC); Temporal scalability (search for similar items in EconPapers)
Date: 2016
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DOI: 10.1007/s11235-014-9950-z

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