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A robust video encoding scheme to enhance error concealment of intra frames

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dc.contributor.authorCarreira, J
dc.contributor.authorAssuncao, P.
dc.contributor.authorFaria. S
dc.contributor.authorEkmekcioglu, E.
dc.contributor.authorKondoz, A.
dc.date.accessioned2025-06-06T11:38:46Z
dc.date.available2025-06-06T11:38:46Z
dc.date.issued2017-05
dc.description.abstractIn this paper a robust encoding scheme is proposed to improve the visual quality of HEVC decoded video when intra frames are lost along the streaming path. For this purpose, the encoding process includes frame loss simulation and subsequent error concealment, to find the most efficient method that should be used by a decoder to recover lost intra frames. In this novel scheme, each image is divided into partitions, which are associated with the error concealment method that achieves the lowest distortion. Then this information is signalled to the decoder through SEI messages in the coded stream. In order to efficiently use the signalling overhead, rate-distortion optimisation is used to achieve the best trade-off between the number of transmitted symbols and distortion of reconstructed frames. Experimental results show the effectiveness of the proposed method to enhance the quality of reconstructed intra frames under different packet loss ratios (PLR). For PLR=10%, the robust coding scheme is able to improve the average PSNR of all frames affected by errors, up to 1.50 dB and 3.44 dB in Low-Delay and Random-Access configurations respectively, at a maximum overhead cost of 0.24%.eng
dc.description.sponsorshipThis work was supported by the Fundac¸ ˜ao para a Ciˆencia e a Tecnologia (FCT), PhD Grant SFRH/BD/86368/2012) and Project UID/EEA/50008/2013.
dc.identifier.citationJ. Carreira, P. Assuncao, S. Faria, E. Ekmekcioglu and A. Kondoz, "A robust video encoding scheme to enhance error concealment of intra frames," 2017 IEEE International Symposium on Circuits and Systems (ISCAS), Baltimore, MD, USA, 2017, pp. 1-4, doi: 10.1109/ISCAS.2017.8050576
dc.identifier.doi10.1109/iscas.2017.8050576
dc.identifier.urihttp://hdl.handle.net/10400.8/13154
dc.language.isoeng
dc.peerreviewedn/a
dc.publisherIEEE
dc.relationSFRH/BD/86368/2012
dc.relationUID/EEA/50008/2013
dc.relation.ispartof2017 IEEE International Symposium on Circuits and Systems (ISCAS)
dc.rights.uriN/A
dc.subjectEncoding
dc.subjectDecoding
dc.subjectDistortion
dc.subjectRobustness
dc.subjectStreaming media
dc.subjectImage reconstruction
dc.subjectOptimization
dc.titleA robust video encoding scheme to enhance error concealment of intra frameseng
dc.typeconference paper
dspace.entity.typePublication
oaire.citation.conferenceDate2017-05-28
oaire.citation.conferencePlaceBaltimore, MD, USA
oaire.citation.title2017 IEEE International Symposium on Circuits and Systems (ISCAS)
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85

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