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Conference Paper: Rate estimation for H.264/AVC spatial resolution reduction

TitleRate estimation for H.264/AVC spatial resolution reduction
Authors
KeywordsAlgorithms
Computational complexity
Error analysis
Matrix algebra
Motion estimation
Multimedia systems
Wireless telecommunication systems
Issue Date2004
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, 2004, v. 4, p. 2773-2776 How to Cite?
AbstractThe emergence of wireless networks has posed new challenges for multimedia content providers. In particular, many existing video contents have bit-rates and resolutions far exceeding the capability of wireless networks and mobile devices, and they need to be adapted before transmission. In this paper, we propose a technique using ρdomain information to estimate the bit rate of down-sampled video in the H.264/AVC format. The bit rate is estimated in two stages. In the initialization stage, we use a low-complexity algorithm to estimate the ρ-domain parameters for half and quarter resolutions, respectively. In the refinement stage, the estimation error is feed-forwarded to improve the estimation accuracy. Experimental results show that the proposed technique can estimate the bit rate accurately at a wide range of down-sampling ratios. © 2004 IEEE.
Persistent Identifierhttp://hdl.handle.net/10722/65568
ISSN
References

 

DC FieldValueLanguage
dc.contributor.authorWong, PHWen_HK
dc.contributor.authorHung, RTWen_HK
dc.contributor.authorLee, JYBen_HK
dc.contributor.authorLiew, SCen_HK
dc.contributor.authorKim, CSen_HK
dc.contributor.authorChin, RTen_HK
dc.date.accessioned2010-08-31T07:16:09Z-
dc.date.available2010-08-31T07:16:09Z-
dc.date.issued2004en_HK
dc.identifier.citationProceedings - International Conference on Image Processing, ICIP, 2004, v. 4, p. 2773-2776en_HK
dc.identifier.issn1522-4880en_HK
dc.identifier.urihttp://hdl.handle.net/10722/65568-
dc.description.abstractThe emergence of wireless networks has posed new challenges for multimedia content providers. In particular, many existing video contents have bit-rates and resolutions far exceeding the capability of wireless networks and mobile devices, and they need to be adapted before transmission. In this paper, we propose a technique using ρdomain information to estimate the bit rate of down-sampled video in the H.264/AVC format. The bit rate is estimated in two stages. In the initialization stage, we use a low-complexity algorithm to estimate the ρ-domain parameters for half and quarter resolutions, respectively. In the refinement stage, the estimation error is feed-forwarded to improve the estimation accuracy. Experimental results show that the proposed technique can estimate the bit rate accurately at a wide range of down-sampling ratios. © 2004 IEEE.en_HK
dc.languageengen_HK
dc.publisherI E E E. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/conhome.jsp?punumber=1000349en_HK
dc.relation.ispartofProceedings - International Conference on Image Processing, ICIPen_HK
dc.subjectAlgorithmsen_HK
dc.subjectComputational complexityen_HK
dc.subjectError analysisen_HK
dc.subjectMatrix algebraen_HK
dc.subjectMotion estimationen_HK
dc.subjectMultimedia systemsen_HK
dc.subjectWireless telecommunication systemsen_HK
dc.titleRate estimation for H.264/AVC spatial resolution reductionen_HK
dc.typeConference_Paperen_HK
dc.identifier.emailChin, RT: rchin@hku.hken_HK
dc.identifier.authorityChin, RT=rp01300en_HK
dc.description.naturelink_to_subscribed_fulltexten_HK
dc.identifier.scopuseid_2-s2.0-20444433555en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-20444433555&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume4en_HK
dc.identifier.spage2773en_HK
dc.identifier.epage2776en_HK
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridWong, PHW=7403979821en_HK
dc.identifier.scopusauthoridHung, RTW=8578619800en_HK
dc.identifier.scopusauthoridLee, JYB=7601469824en_HK
dc.identifier.scopusauthoridLiew, SC=7102903257en_HK
dc.identifier.scopusauthoridKim, CS=34769533700en_HK
dc.identifier.scopusauthoridChin, RT=7102445426en_HK

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