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Stanislav Uchytil,Václav Zeman
Originální název
Using Fractal Prediction in Zerotree Wavelet Coding
Typ
článek ve sborníku ve WoS nebo Scopus
Jazyk
angličtina
Originální abstrakt
Fractal image coding can be seen as spectral prediction of coefficients in the wavelet decomposition of an image. Fine scale coefficients are described by shifted and scaled coefficients from the next coarser frequency scale. We analyzed the ability of fractal coders to predict zavelet coefficients and found that the prediction of entire zavelet subtrees - as done by conventional spatial domain fractal coders - leads to poor coding results. This paper discusses how to design an improved fractal coder in the zavelet domain and proposes a new hybrid fractal-wavelet zerotree coding scheme. Although the coding results of the new coder outperform conventional fractal coders, they are unfortunately inferior compared with a pure wavelet version of this zerotree coder.
Klíčová slova
Wavelet Coding
Autoři
Rok RIV
2006
Vydáno
13. 9. 2006
Nakladatel
Brno
Místo
Nové Město na Moravě
Strany od
426
Strany do
431
Strany počet
6
BibTex
@inproceedings{BUT21875, author="Stanislav {Uchytil} and Václav {Zeman}", title="Using Fractal Prediction in Zerotree Wavelet Coding", booktitle="Proceedings of Research in Telecommunication Technology 2006", year="2006", pages="6", publisher="Brno", address="Nové Město na Moravě" }