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wavelet

[weyv-lit] /ˈweɪv lɪt/
noun
1.
a small wave; ripple.
Origin
1800-1810
1800-10; wave + -let
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for wavelet
  • Instead, it is part of a surprising wavelet of innovation in an industry largely dismissed by venture capital: automobiles.
British Dictionary definitions for wavelet

wavelet

/ˈweɪvlɪt/
noun
1.
a small wave
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for wavelet
n.

1813, diminutive of wave (n.).

Online Etymology Dictionary, © 2010 Douglas Harper
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wavelet in Science
wavelet
  (wāv'lĭt)   
A small wave; a ripple. See more at wave.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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wavelet in Technology
mathematics
A waveform that is bounded in both frequency and duration. Wavelet tranforms provide an alternative to more traditional Fourier transforms used for analysing waveforms, e.g. sound.
The Fourier transform converts a signal into a continuous series of sine waves, each of which is of constant frequency and amplitude and of infinite duration. In contrast, most real-world signals (such as music or images) have a finite duration and abrupt changes in frequency.
Wavelet transforms convert a signal into a series of wavelets. In theory, signals processed by the wavelet transform can be stored more efficiently than ones processed by Fourier transform. Wavelets can also be constructed with rough edges, to better approximate real-world signals.
For example, the United States Federal Bureau of Investigation found that Fourier transforms proved inefficient for approximating the whorls of fingerprints but a wavelet transform resulted in crisper reconstructed images.
SBG Austria (http://mat.sbg.ac.at/~uhl/wav.html).
["Ten Lectures on Wavelets", Ingrid Daubechies].
(1994-11-09)
The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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