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A Two-Stage Approach for Robust HEVC Coding and Streaming

2018-08Journal article Open access
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dc.contributor.authorCarreira, João F. M.
dc.contributor.authorAssunção, Pedro
dc.contributor.authorFaria, Sergio
dc.contributor.authorEkmekcioglu, Erhan
dc.contributor.authorKondoz, Ahmet
dc.date.accessioned2025-07-15T10:09:50Z
dc.date.available2025-07-15T10:09:50Z
dc.date.issued2018-08
dc.description.abstractThe increased compression ratios achieved by the High Efficiency Video Coding (HEVC) standard lead to reduced robustness of coded streams, with increased susceptibility to network errors and consequent video quality degradation. This paper proposes a method based on a two-stage approach to improve the error robustness of HEVC streaming, by reducing temporal error propagation in the case of frame loss. The prediction mismatch that occurs at the decoder after frame loss is reduced through the following two stages. First, at the encoding stage, the reference pictures are dynamically selected based on constraining conditions and Lagrangian optimization, which distributes the use of reference pictures, by reducing the number of prediction units that depend on a single reference. Second, at the streaming stage, a motion vector (MV) prioritization algorithm, based on spatial dependencies, selects an optimal subset of MVs to be transmitted, redundantly, as side information to reduce mismatched MV predictions at the decoder. The simulation results show that the proposed method significantly reduces the effect of temporal error propagation. Compared with the reference HEVC, the proposed reference picture selection method is able to improve the video quality at low-packet-loss rates (e.g., 1%) using the same bitrate, achieving quality gains up to 2.3 dB for 10% of packet loss ratio. It is shown, for instance, that the redundant MVs are able to boost the performance achieving quality gains of 3 dB when compared with the reference HEVC, at the cost using 4% increase in total bitrate.eng
dc.identifier.citationJ. F. M. Carreira, P. A. Assunção, S. M. M. de Faria, E. Ekmekcioglu and A. Kondoz, "A Two-Stage Approach for Robust HEVC Coding and Streaming," in IEEE Transactions on Circuits and Systems for Video Technology, vol. 28, no. 8, pp. 1960-1973, Aug. 2018, doi: 10.1109/TCSVT.2017.2691471.
dc.identifier.doi10.1109/tcsvt.2017.2691471
dc.identifier.eissn1558-2205
dc.identifier.issn1051-8215
dc.identifier.urihttp://hdl.handle.net/10400.8/13638
dc.language.isoeng
dc.peerreviewedyes
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)
dc.relation.hasversionhttps://ieeexplore.ieee.org/document/7893719/
dc.relation.ispartofIEEE Transactions on Circuits and Systems for Video Technology
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectHEVC
dc.subjecterror propagation
dc.subjectredundant MV
dc.subjectreference picture selection
dc.subjectrobust coding
dc.titleA Two-Stage Approach for Robust HEVC Coding and Streamingeng
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage1973
oaire.citation.issue8
oaire.citation.startPage1960
oaire.citation.titleIEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY
oaire.citation.volume28
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameAssunção
person.familyNameFaria
person.givenNamePedro
person.givenNameSergio
person.identifier.ciencia-id6811-3984-C17B
person.identifier.ciencia-id8815-4101-28DD
person.identifier.orcid0000-0001-9539-8311
person.identifier.orcid0000-0002-0993-9124
person.identifier.ridA-4827-2017
person.identifier.ridC-5245-2011
person.identifier.scopus-author-id6701838347
person.identifier.scopus-author-id14027853900
relation.isAuthorOfPublication25649bb9-f135-48e8-8d0f-3706b86701d3
relation.isAuthorOfPublicationf69bd4d6-a6ef-4d20-8148-575478909661
relation.isAuthorOfPublication.latestForDiscovery25649bb9-f135-48e8-8d0f-3706b86701d3

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