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Publication detail
Stanislav Uchytil,Václav Zeman
Original Title
Using Fractal Prediction in Zerotree Wavelet Coding
Type
conference paper
Language
English
Original Abstract
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.
Keywords
Wavelet Coding
Authors
RIV year
2006
Released
13. 9. 2006
Publisher
Brno
Location
Nové Město na Moravě
Pages from
426
Pages to
431
Pages count
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" }