Effects of frame rate, frame size and MPEG2 compression on the perceived compressed video quality transmitted over lossy IP networks

Author

Shmueli, Ron ; Hub, Revital ; Hadar, Ofer

Author_Institution

Dept. of Electr. & Comput. Eng., Ben Gurion Univ., Beer-Sheva, Israel

fYear

2004

fDate

28 June-1 July 2004

Firstpage

49

Lastpage

54

Abstract

The purpose of this paper is to analyze the relationship between viewer-perceived quality and encoding schemes. The encoding schemes depend on transmission bit-rate, on MPEG compression depth, on frame size and on frame rate in a constant bit-rate (CBR) video transmission of a MPEG2 video sequence. The compressed video sequence is transmitted over a lossy communication network with quality of service (QoS) and a certain IP loss model. On the end-user side, viewer-perceived quality depends on changes in the network conditions and on video complexity. We demonstrate that, when jointly considering the impact of coding bit rate, packet loss and video complexity, there is an optimal encoding scheme, which depends on the video content. This optimal encoding scheme maximizes the viewer-perceived quality.

Keywords

IP networks; data compression; encoding; quality of service; video coding; IP loss model; MPEG compression; MPEG2 compression; MPEG2 video sequence; constant bit-rate video transmission; data mining; lossy IP networks; lossy communication network; optimal encoding scheme; packet loss; perceived compressed video quality; quality of service; transmission bit-rate; video complexity; viewer-perceived quality; Bandwidth; Bit rate; Encoding; IP networks; Propagation losses; Quality of service; Streaming media; Transform coding; Video compression; Video sequences;

fLanguage

English

Publisher

ieee

Conference_Titel

Information Technology: Research and Education, 2004. ITRE 2004. 2nd International Conference on

Print_ISBN

0-7803-8625-6

Type

conf

DOI

10.1109/ITRE.2004.1393644

Filename

1393644