Title :
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
fDate :
28 June-1 July 2004
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;
Conference_Titel :
Information Technology: Research and Education, 2004. ITRE 2004. 2nd International Conference on
Print_ISBN :
0-7803-8625-6
DOI :
10.1109/ITRE.2004.1393644
