The impact of H.264 non-desynchronizing bits on visual quality and its application to robust video decoding

Golaghazadeh, Firouzeh, Coulombe, Stéphane, Coudoux, François-Xavier et Corlay, Patrick. 2018. « The impact of H.264 non-desynchronizing bits on visual quality and its application to robust video decoding ». In 2018 12th International Conference on Signal Processing and Communication Systems (ICSPCS) (Cairns, Australia, Dec. 17-19, 2018) Piscataway, NJ, USA : IEEE.
Compte des citations dans Scopus : 1.

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Abstract

In this paper, the concept of non-desynchronizing bits (NDBs) is defined in the context of H.264 video as a bit whose inversion does not cause desynchronization at the bitstream level or change the number of decoded macroblocks. We established that, on the whole, NDBs make up about a third (about 30 %) of a bitstream, and that their flipping effect on visual quality is mostly insignificant. In most cases (90 %), the PSNR value obtained when modifying an NDB is very close to the intact value. The performance of the proposed non-desync-based decoding framework, which retains a corrupted packet, under the condition of not causing desynchronization, has been compared to the JM-FC and a state-of-the-art concealment approach using the STBMA approach, and on average, respectively, provides 3.5 dB and 1.42 dB gain over them.

Item Type:	Conference proceeding
ISBN:	978-1-5386-5602-0
Editors:	Editors ORCID Wysocki, T. A. UNSPECIFIED Wysocki, B. J. UNSPECIFIED
Professor:	Professor Coulombe, Stéphane
Affiliation:	Génie logiciel et des technologies de l'information
Date Deposited:	08 Apr 2019 14:45
Last Modified:	17 Jan 2020 15:42
URI:	https://espace2.etsmtl.ca/id/eprint/18530

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