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Title: Error concealment-aware encoding for robust video transmission
Authors: Carreira, Joao F.M.
Assuncao, Pedro A.A.
Faria, Sergio M.M.
Ekmekcioglu, Erhan
Kondoz, Ahmet
Keywords: Video broadcasting
Error concealment-aware coding
Robust video coding
Issue Date: 2018
Publisher: © Institute of Electrical and Electronics Engineers (IEEE)
Citation: CARREIRA, J.F.M. ...et al., Error concealment-aware encoding for robust video transmission. IEEE Transactions on Broadcasting, 65 (2), pp.282-293.
Abstract: In this paper an error concealment-aware encoding scheme is proposed to improve the quality of decoded video in broadcast environments prone to transmission errors and data loss. The proposed scheme is based on a scalable coding approach where the best error concealment (EC) methods to be used at the decoder are optimally determined at the encoder and signalled to the decoder through SEI messages. Such optimal EC modes are found by simulating transmission losses followed by a lagrangian optimisation of the signalling rate - EC distortion cost. A generalised saliency-weighted distortion is used and the residue between coded frames and their EC substitutes is encoded using a rate-controlled enhancement layer. When data loss occurs the decoder uses the signalling information is used at the decoder, in case of data loss, to improve the reconstruction quality. The simulation results show that the proposed method achieves consistent quality gains in comparison with other reference methods and previous works. Using only the EC mode signalling, i.e., without any residue transmitted in the enhancement layer, an average PSNR gain up to 2.95 dB is achieved, while using the full EC-aware scheme, i.e., including residue encoded in the enhancement layer, the proposed scheme outperforms other comparable methods, with PSNR gain up to 3.79 dB.
Description: © 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Version: Accepted for publication
DOI: 10.1109/TBC.2018.2865644
URI: https://dspace.lboro.ac.uk/2134/34032
Publisher Link: https://doi.org/10.1109/TBC.2018.2865644
ISSN: 0018-9316
Appears in Collections:Published Articles (Loughborough University London)

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