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Error-free computation of Daubechies wavelets for image compression applications

Error-free computation of Daubechies wavelets for image compression applications

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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.

http://iet.metastore.ingenta.com/content/journals/10.1049/el_20030318
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