A Fast And Efficient Hybrid Fractal-wavelet Image Coder.

dc.creatorIano, Yuzo
dc.creatorda Silva, Fernando Silvestre
dc.creatorCruz, Ana Lúcia Mendes
dc.date2006-Jan
dc.date2015-11-27T13:06:16Z
dc.date2015-11-27T13:06:16Z
dc.date.accessioned2018-03-29T01:04:14Z
dc.date.available2018-03-29T01:04:14Z
dc.identifierIeee Transactions On Image Processing : A Publication Of The Ieee Signal Processing Society. v. 15, n. 1, p. 98-105, 2006-Jan.
dc.identifier1057-7149
dc.identifier
dc.identifierhttp://www.ncbi.nlm.nih.gov/pubmed/16435540
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/197136
dc.identifier16435540
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1297369
dc.descriptionThe excellent visual quality and compression rate of fractal image coding have limited applications due to exhaustive inherent encoding time. This paper presents a new fast and efficient image coder that applies the speed of the wavelet transform to the image quality of the fractal compression. Fast fractal encoding using Fisher's domain classification is applied to the lowpass subband of wavelet transformed image and a modified set partitioning in hierarchical trees (SPIHT) coding, on the remaining coefficients. Furthermore, image details and wavelet progressive transmission characteristics are maintained, no blocking effects from fractal techniques are introduced, and the encoding fidelity problem common in fractal-wavelet hybrid coders is solved. The proposed scheme promotes an average of 94% reduction in encoding-decoding time comparing to the pure accelerated Fractal coding results. The simulations also compare the results to the SPIHT wavelet coding. In both cases, the new scheme improves the subjective quality of pictures for high-medium-low bitrates.
dc.description15
dc.description98-105
dc.languageeng
dc.relationIeee Transactions On Image Processing : A Publication Of The Ieee Signal Processing Society
dc.relationIEEE Trans Image Process
dc.rightsfechado
dc.rights
dc.sourcePubMed
dc.subjectAlgorithms
dc.subjectComputer Graphics
dc.subjectComputer Simulation
dc.subjectData Compression
dc.subjectFractals
dc.subjectImage Enhancement
dc.subjectImage Interpretation, Computer-assisted
dc.subjectModels, Statistical
dc.subjectNumerical Analysis, Computer-assisted
dc.subjectSignal Processing, Computer-assisted
dc.titleA Fast And Efficient Hybrid Fractal-wavelet Image Coder.
dc.typeArtículos de revistas


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