Joint impact of MPEG-2 encoding rate and ATM cell losses on video quality

Author

Verscheure, Olivier ; Frossard, Pascal ; Hamdi, Maher

Author_Institution

Inst. for Comput. Commun. & Applications, Swiss Fed. Inst. of Technol., Zurich, Switzerland

Volume

1

fYear

1998

fDate

1998

Firstpage

71

Abstract

This work addresses the analysis of the end-user perception of CBR MPEG-2 video services transmitted over ATM/AAL5 networks. We first independently study how the perceptual video quality behaves with the constant encoding bit rate (CBR) and the network cell loss ratio (CLR). We then jointly analyze the impact of these two components onto the user-oriented QoS. All the quality assessments are based on a perceptual quality metric, MPQM, which proved to behave consistently with human judgements. We show that, when considering video transmission over lossy networks, there is an optimal bit rate to be determined that maximizes the end-user perception of the service under some given network conditions

Keywords

ISO standards; asynchronous transfer mode; code standards; data compression; image reconstruction; image sequences; quality of service; telecommunication standards; video coding; visual communication; ATM cell losses; ATM/AAL5 networks; CBR; CBR video services; ISO; MPEG-2 encoding rate; MPEG-2 standard; MPQM; cell loss ratio; constant encoding bit rate; end-user perception; human judgements; lossy networks; network conditions; optimal bit rate; perceptual quality metric; perceptual video quality; reconstructed video sequence; user-oriented QoS; video transmission; Asynchronous transfer mode; Bit rate; Encoding; ISO standards; Propagation losses; Quality of service; Streaming media; Video compression; Video on demand; Videoconference;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference, 1998. GLOBECOM 1998. The Bridge to Global Integration. IEEE

Conference_Location

Sydney,NSW

Print_ISBN

0-7803-4984-9

Type

conf

DOI

10.1109/GLOCOM.1998.775702

Filename

775702