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dc.contributor.authorTsai, Chia-Yangen_US
dc.contributor.authorHang, Hsueh-Mingen_US
dc.date.accessioned2014-12-08T15:20:39Z-
dc.date.available2014-12-08T15:20:39Z-
dc.date.issued2011-11-01en_US
dc.identifier.issn1051-8215en_US
dc.identifier.urihttp://dx.doi.org/10.1109/TCSVT.2011.2125530en_US
dc.identifier.urihttp://hdl.handle.net/11536/14684-
dc.description.abstractWe develop an accurate source model, one-sided rho-generalized Gaussian distribution (GGD), for approximating the residual signals in scalable wavelet video coding. An efficient piecewise linear expression is suggested to estimate the shape parameter of the one-sided rho-GGD. We also improve the model accuracy in matching the real data by modifying the. parameter estimation formula. Continuing our previous work on developing the motion information gain metric to measure the motion information efficiency, we now incorporate the one-sided rho-GGD model in the cost function, which is used for deciding the motion vectors and motion estimation mode in scalable wavelet video coding. Compared with the conventional Lagrangian optimization, our simulation results show that the new mode decision method generally improves the peak signal-to-noise ratio performance in the combined signal-to-noise ratio and temporal scalability cases.en_US
dc.language.isoen_USen_US
dc.subjectInterframe wavelet videoen_US
dc.subjectmotion information gain (MIG)en_US
dc.subjectone-sided rho-GGDen_US
dc.subjectscalable wavelet videoen_US
dc.titleOne-Sided rho-GGD Source Modeling and Rate-Distortion Optimization in Scalable Wavelet Video Coderen_US
dc.typeArticleen_US
dc.identifier.doi10.1109/TCSVT.2011.2125530en_US
dc.identifier.journalIEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGYen_US
dc.citation.volume21en_US
dc.citation.issue11en_US
dc.citation.spage1557en_US
dc.citation.epage1570en_US
dc.contributor.department電子工程學系及電子研究所zh_TW
dc.contributor.departmentDepartment of Electronics Engineering and Institute of Electronicsen_US
dc.identifier.wosnumberWOS:000296471100001-
dc.citation.woscount1-
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