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EXTENDING SVC BY CONTENT-ADAPTIVE SPATIAL SCALABILITY
| Citations: | 1 - 0 self |
BibTeX
@MISC{Wang_extendingsvc,
author = {Yongzhe Wang and Nikolce Stefanoski and Manuel Lang and Er Hornung and Aljoscha Smolic and Markus Gross},
title = {EXTENDING SVC BY CONTENT-ADAPTIVE SPATIAL SCALABILITY},
year = {}
}
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Abstract
This paper provides details on a complete integration of Content-adaptive Spatial Scalability (CASS) into the scalable video coding extension of H.264/AVC (SVC). CASS enables the efficient encoding of a high-quality bit stream that contains several versions of an original image sequence. Thereby, each such image sequence has been created by content-adaptive and art directed retargeting to different display aspect-ratios and/or resolutions. Non-linear dependencies between spatial layers, which have been introduced through content-adaptive retargeting, are exploited by a generalization of the three inter-layer prediction tools of SVC, i.e. by content-adaptive inter-layer texture, motion and residual prediction. The CASS extended SVC enables the transmission of video content which has been specifically adapted in an art-directed way to multiple display configurations (e.g. to SD and HD displays with 4:3 and 16:9 aspect-ratios, respectively) using a single compressed bit stream. With our extension, video content of higher semantic quality can be transmitted in a scalable way by introducing an average overhead in bit rate of 9.3%. Index Terms — H.264/AVC, scalable video coding, spatial
Keyphrases
extending svc content-adaptive spatial scalability video content scalable video non-linear dependency single compressed bit stream content-adaptive spatial scalability inter-layer prediction tool complete integration content-adaptive inter-layer texture different display aspect-ratios efficient encoding content-adaptive retargeting bit rate scalable video coding high-quality bit stream art-directed way index term original image sequence residual prediction scalable way spatial layer several version semantic quality hd display display configuration image sequence average overhead
