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   -> Volume 6, Issue 5

Answer: Integer wavelet transforms (WD 6.4 #25)
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Wim Sweldens (

PostPosted: Fri Apr 11, 1997 11:50 pm    
Subject: Answer: Integer wavelet transforms (WD 6.4 #25)
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#21 Answer: Integer wavelet transforms (WD 6.4 #25)

Dear Franck,

We have recently finished a paper describing how to take existing
wavelet transforms and build them into wavelet transforms that map
integers to integers. Using a technique called lifting, it is possible
to do this for any given wavelet transform. However, given that the
transform becomes non-linear due to round-off, it doesn't make that
much sense to talk about scaling functions.

The ref is

Wavelet Transforms that Map Integers to Integers
R. C. Calderbank, Ingrid Daubechies, Wim Sweldens, and Boon-Lock Yeo

Best regards,


Wim Sweldens
Lucent Technologies (former part of AT&T) phone: 908.582.3288
Bell Laboratories fax: 908.582.3340
700 Mountain Avenue Rm. 2C-175 e-mail:
Murray Hill, NJ 07974_____________________
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