About: Reducing Boundary Error in Wavelet Image Compression

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Originally, the discrete wavelet transform was designed for an infinite input data. Applying discrete wavelet transform directly to images in lossy wavelet image compression leads to large errors and artifacts at the tile and the image boundaries of the reconstructed image. To reduce boundary errors and artifacts the image is usually first extended and the discrete wavelet transform is applied to the extended image. An alternative approach consists of using directly the discrete wavelet transform with special filters near the boundary. In our contribution, we show that the tiling artifacts are significantly reduced and that the error of the compression is smaller with the discrete wavelet transform with recently derived boundary filters than with other methods using an extension of an image. Originally, the discrete wavelet transform was designed for an infinite input data. Applying discrete wavelet transform directly to images in lossy wavelet image compression leads to large errors and artifacts at the tile and the image boundaries of the reconstructed image. To reduce boundary errors and artifacts the image is usually first extended and the discrete wavelet transform is applied to the extended image. An alternative approach consists of using directly the discrete wavelet transform with special filters near the boundary. In our contribution, we show that the tiling artifacts are significantly reduced and that the error of the compression is smaller with the discrete wavelet transform with recently derived boundary filters than with other methods using an extension of an image. (en)
Title	Reducing Boundary Error in Wavelet Image Compression Reducing Boundary Error in Wavelet Image Compression (en)
skos:prefLabel	Reducing Boundary Error in Wavelet Image Compression Reducing Boundary Error in Wavelet Image Compression (en)
skos:notation	RIV/46747885:24510/10:#0000202!RIV11-GA0-24510___
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(GP201/09/P641), P(LC06024)
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Černá, Dana
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Technická univerzita v Liberci / Fakulta přírodovědně-humanitní a pedagogická
http://linked.open...dnocenehoVysledku	284291
http://linked.open...ai/riv/idVysledku	RIV/46747885:24510/10:#0000202
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	biorthogonal wavelets; image compression; boundary error; tiling artifact (en)
http://linked.open.../riv/klicoveSlovo	biorthogonal wavelets boundary error tiling artifact image compression
http://linked.open...ontrolniKodProRIV	[F908C66D4843]
http://linked.open...v/mistoKonaniAkce	Rhodes, Greece
http://linked.open...i/riv/mistoVydani	New York
http://linked.open...i/riv/nazevZdroje	AIP Conference Proceedings, Vol. 1281
http://linked.open...in/vavai/riv/obor	BA
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...vavai/riv/projekt	Wavelet adaptive methods with stable bases Jaroslav Hájek Center for Theoretical and Applied Statistics
http://linked.open...UplatneniVysledku	2010
http://linked.open...iv/tvurceVysledku	Finěk, Václav Černá, Dana
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open...ain/vavai/riv/wos	287218400467
http://linked.open.../riv/zahajeniAkce	2010-10-09 (xsd:date)
number of pages	4 (xsd:int)
http://purl.org/ne...btex#hasPublisher	American Institute of Physics
https://schema.org/isbn	978-0-7354-0834-0
http://localhost/t...ganizacniJednotka	24510

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