Title :
Standard-compliant multiple description video coding
Author :
Gallant, Michael ; Shirani, Shahram ; Kossentini, Faouzi
Author_Institution :
PixStream Inc., Waterloo, Ont., Canada
fDate :
6/23/1905 12:00:00 AM
Abstract :
We address the problem of robust video transmission over unreliable networks. Our approach employs the principle of multiple-descriptions, through pre- and post-processing of the video data, without modification to the source or channel codecs. We employ oversampling to add redundancy to the original video data followed by a decomposition of the oversampled video frames into "equal" sub-images which can be coded and transmitted over separate channels. Simulations using two descriptions show that this approach maintains excellent reconstructed video quality when only one description is received
Keywords :
combined source-channel coding; image reconstruction; image sampling; video coding; visual communication; channel codecs; multiple description video coding; oversampling; robust video transmission; source codecs; standard-compliant video coding; unreliable networks; video compression; video quality; video reconstruction; Codecs; Counting circuits; Degradation; Discrete transforms; IP networks; Image coding; Image reconstruction; Robustness; Video coding; Video compression;
Conference_Titel :
Image Processing, 2001. Proceedings. 2001 International Conference on
Conference_Location :
Thessaloniki
Print_ISBN :
0-7803-6725-1
DOI :
10.1109/ICIP.2001.959203