DocumentCode
1471575
Title
Closed-loop motion compensation for video coding standards
Author
Kweh, T.H. ; Eryurtlu, F. ; Kondoz, A.M.
Author_Institution
Centre for Commun. Syst. Res., Surrey Univ., Guildford, UK
Volume
144
Issue
4
fYear
1997
fDate
8/1/1997 12:00:00 AM
Firstpage
227
Lastpage
232
Abstract
In the classical block-matching motion-estimation approach, the motion vectors which result in minimum distortion between the estimated and the actual image block are chosen. However, these motion vectors may not be optimal in terms of coding efficiency. An analysis by synthesis method which selects the optimal motion vectors, using the resulting bit rate and distortion, is presented. A significant reduction in bit rate is achieved with virtually no degradation in objective image quality. H.263 is used in simulation experiments to test the algorithm
Keywords
code standards; image matching; motion compensation; motion estimation; rate distortion theory; signal synthesis; telecommunication standards; video codecs; video coding; H.263; algorithm; analysis by synthesis method; bit rate reduction; block matching motion estimation; closed-loop motion compensation; codec efficiency; coding efficiency; image block; minimum distortion; motion vectors; objective image quality; optimal motion vectors; simulation experiments; video coding standards;
fLanguage
English
Journal_Title
Vision, Image and Signal Processing, IEE Proceedings -
Publisher
iet
ISSN
1350-245X
Type
jour
DOI
10.1049/ip-vis:19971304
Filename
617091
Link To Document