Error-free computation of Daubechies wavelets for image compression applications

Error-free computation of Daubechies wavelets for image compression applications

A novel encoding scheme for Daubechies wavelets is proposed. The technique eliminates the requirements to approximate the transformation matrix elements; rather, by using algebraic integers, it is possible to obtain exact representations for them. As a result, error-free calculations up to the final...

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Veröffentlicht in:Electronics letters 2003-03, Vol.39 (5), p.1-1
Hauptverfasser: Wahid, K A, Dimitrov, V S, Jullien, G A, Badawy, W
Format: Artikel
Sprache:eng
Schlagworte:
Algebra
Approximation
Image compression
Mathematical analysis
Reconstruction
Representations
Transformations (mathematics)
Wavelet
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Zusammenfassung:A novel encoding scheme for Daubechies wavelets is proposed. The technique eliminates the requirements to approximate the transformation matrix elements; rather, by using algebraic integers, it is possible to obtain exact representations for them. As a result, error-free calculations up to the final reconstruction step can be achieved, which provides considerable improvement in image reconstruction accuracy.
ISSN:0013-5194
1350-911X