What is Daubechies wavelet?
{{Orphan|date=December 2010}} [[File:Daubechies4-functions.png|thumb|Scaling and wavelet function of continuous D4 wavelet]] '''Daubechies wavelets''' are a family of [[orthogonal]] [[wavelet]]s named after [[Belgian]] [[physicist]] and [[mathematician]] [[Ingrid Daubechies]]. They are used in [[discrete wavelet transform]]. Because they are fairly easy to model, they are often used for [[digital signal processing]] and [[wavelet compression]]. For each wavelet function, there are two finite series of real numbers. These act as a [[digital filter]]. Each filter is made in such a way that a signal that is at a [[right angle]] to the filter will disappear. Ingrid Daubechies also defined another class of filters she called ''bi[[Orthogonality|orthogonal]]''. These are no longer at a right angle to the signal, but they are symmetric. ==Related pages== * [[Wavelet transform]] * [[Quadrature mirror filter]] [[Category:Harmonic analysis]] [[Category:Wavelets]] {{stub}}