Discrete weighted transform

Discrete weighted transform

In mathematics, the discrete weighted transform (DWT) is a variation on the discrete Fourier transform over arbitrary fields involving weighting the input before transforming it.[1]

References

  1. ^ Crandall, Richard; Fagin, Barry (1994), "Discrete weighted transforms and large-integer arithmetic", Mathematics of Computation 62 (205): 305–324, http://www.faginfamily.net/barry/Papers/Discrete%20Weighted%20Transforms.pdf 

See also



Wikimedia Foundation. 2010.

Игры ⚽ Нужен реферат?

Look at other dictionaries:

  • Irrational base discrete weighted transform — In mathematics, the irrational base discrete weighted transform (IBDWT) is a variant of the fast Fourier transform using an irrational base; it was developed by Richard Crandall (Reed College), Barry Fagin (Dartmouth College) and Joshua Doenias… …   Wikipedia

  • Discrete cosine transform — A discrete cosine transform (DCT) expresses a sequence of finitely many data points in terms of a sum of cosine functions oscillating at different frequencies. DCTs are important to numerous applications in science and engineering, from lossy… …   Wikipedia

  • Discrete Laplace operator — For the discrete equivalent of the Laplace transform, see Z transform. In mathematics, the discrete Laplace operator is an analog of the continuous Laplace operator, defined so that it has meaning on a graph or a discrete grid. For the case of a… …   Wikipedia

  • Scale-invariant feature transform — Feature detection Output of a typical corner detection algorithm …   Wikipedia

  • List of numerical analysis topics — This is a list of numerical analysis topics, by Wikipedia page. Contents 1 General 2 Error 3 Elementary and special functions 4 Numerical linear algebra …   Wikipedia

  • List of transforms — This is a list of transforms in mathematics.Integral transforms*Abel transform *Fourier transform **Short time Fourier transform *Hankel transform *Hartley transform *Hilbert transform **Hilbert Schmidt integral operator *Laplace transform… …   Wikipedia

  • List of harmonic analysis topics — This is a list of harmonic analysis topics, by Wikipedia page. See also list of Fourier analysis topics and list of Fourier related transforms, which are more directed towards the classical Fourier series and Fourier transform of mathematical… …   Wikipedia

  • List of mathematics articles (I) — NOTOC Ia IA automorphism ICER Icosagon Icosahedral 120 cell Icosahedral prism Icosahedral symmetry Icosahedron Icosian Calculus Icosian game Icosidodecadodecahedron Icosidodecahedron Icositetrachoric honeycomb Icositruncated dodecadodecahedron… …   Wikipedia

  • Richard Crandall — Richard E. Crandall is an American computer scientist and physicist who has made contributions to computational number theory, most notably the development of the irrational base discrete weighted transform, an important method of finding very… …   Wikipedia

  • Richard Crandall — Richard E. Crandall (* 1947) ist ein US amerikanischer Informatiker und Physiker, der durch Beiträge zur algorithmischen Zahlentheorie bekannt geworden ist, vor allem zur Entwicklung der irrational base discrete weighted transform (IBDWT), einer… …   Deutsch Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”