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Error-free computation of Daubechies wavelets for image compression applications

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4 Author(s)
Wahid, K.A. ; Dept. of Electr. & Comput. Eng., Calgary Univ., Alta., Canada ; Dimitrov, V.S. ; Jullien, G.A. ; Badawy, W.

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.

Published in:

Electronics Letters  (Volume:39 ,  Issue: 5 )