File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Conference Paper: A convex optimization-based frame-level rate control algorithm for motion compensated hybrid DCT/DPCM video coding

TitleA convex optimization-based frame-level rate control algorithm for motion compensated hybrid DCT/DPCM video coding
Authors
KeywordsConvex Optimization
Dct/Dpcm
Rate Control
Video Coding
Issue Date2006
PublisherI E E E. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/conhome.jsp?punumber=1000349
Citation
Proceedings - International Conference On Image Processing, Icip, 2006, p. 2469-2472 How to Cite?
AbstractThis paper presents a convex optimization-based frame-level rate control algorithm for motion compensated hybrid DCT/DPCM video coding. By modifying the existing rate-distortion models, an improved empirical rate-distortion model with more flexibility is proposed to explain the experimental observations. The convexity and monotonicity of the proposed model are exploited to formulate the frame-level bit allocation problem as a convex programming problem. Thus the bit allocation among the frames with different picture types can be solved using convex programming methods such as the interior-point methods, if the optimal solution exists. Different importance weights for various picture types (I-, P-, etc) can also be incorporated into the scheme in order to account for the relative importance of different picture types due to their interdependency. The relevant model parameters are determined using previously encoded frames by means of linear regression. Simulation results show that the proposed algorithm achieves a considerably better picture quality in terms of PSNR than the conventional approaches for the tested video sequences. Therefore, it is a good alternative to these conventional approaches. ©2006 IEEE.
Persistent Identifierhttp://hdl.handle.net/10722/158659
ISSN
References

 

DC FieldValueLanguage
dc.contributor.authorWu, Qen_US
dc.contributor.authorChan, SCen_US
dc.contributor.authorShum, HYen_US
dc.date.accessioned2012-08-08T09:00:43Z-
dc.date.available2012-08-08T09:00:43Z-
dc.date.issued2006en_US
dc.identifier.citationProceedings - International Conference On Image Processing, Icip, 2006, p. 2469-2472en_US
dc.identifier.issn1522-4880en_US
dc.identifier.urihttp://hdl.handle.net/10722/158659-
dc.description.abstractThis paper presents a convex optimization-based frame-level rate control algorithm for motion compensated hybrid DCT/DPCM video coding. By modifying the existing rate-distortion models, an improved empirical rate-distortion model with more flexibility is proposed to explain the experimental observations. The convexity and monotonicity of the proposed model are exploited to formulate the frame-level bit allocation problem as a convex programming problem. Thus the bit allocation among the frames with different picture types can be solved using convex programming methods such as the interior-point methods, if the optimal solution exists. Different importance weights for various picture types (I-, P-, etc) can also be incorporated into the scheme in order to account for the relative importance of different picture types due to their interdependency. The relevant model parameters are determined using previously encoded frames by means of linear regression. Simulation results show that the proposed algorithm achieves a considerably better picture quality in terms of PSNR than the conventional approaches for the tested video sequences. Therefore, it is a good alternative to these conventional approaches. ©2006 IEEE.en_US
dc.languageengen_US
dc.publisherI E E E. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/conhome.jsp?punumber=1000349en_US
dc.relation.ispartofProceedings - International Conference on Image Processing, ICIPen_US
dc.subjectConvex Optimizationen_US
dc.subjectDct/Dpcmen_US
dc.subjectRate Controlen_US
dc.subjectVideo Codingen_US
dc.titleA convex optimization-based frame-level rate control algorithm for motion compensated hybrid DCT/DPCM video codingen_US
dc.typeConference_Paperen_US
dc.identifier.emailChan, SC:scchan@eee.hku.hken_US
dc.identifier.authorityChan, SC=rp00094en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1109/ICIP.2006.312777en_US
dc.identifier.scopuseid_2-s2.0-78649831416en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-78649831416&selection=ref&src=s&origin=recordpageen_US
dc.identifier.spage2469en_US
dc.identifier.epage2472en_US
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridWu, Q=52763969700en_US
dc.identifier.scopusauthoridChan, SC=13310287100en_US
dc.identifier.scopusauthoridShum, HY=7006094115en_US

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats