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   -> Volume 3, Issue 8


Answer: Exact reconstruction with Daubechies filters (WD 3.7 #9)
 
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Eric Majani (eric@elroy.jpl.nasa.gov)
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PostPosted: Mon Dec 02, 2002 1:06 pm    
Subject: Answer: Exact reconstruction with Daubechies filters (WD 3.7 #9)
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Answer: Exact reconstruction with Daubechies filters (WD 3.7 #9)

Answer to topic 9 of WD 3.7

> In the document Ten Lectures on Wavelets by Ingrid Daubechies, 1992
> Tables 8.2 (page 277) and 8.3 (page 279), the coefficients taken for
> Synthesis (inverse) filter to be the m_0^tilde filter, seem NOT to
> produce exact reconstruction? for DBS(3,7).
> Yves Misiti

The right coefficients for the DBS(3,7) filter page 277 are:

[35 -105 -195 865 363 -3489 -307 11025 11025 -307 -3489 363 865 -195 -105 35]

Note that in Daubechies' "Ten Lectures", she had 336 instead of 363 as shown
above.

-Eric Majani
All times are GMT + 1 Hour
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