[1] : The Collaborative International Dictionary of English v.0.48

wavelet \wave"let\, n.
   a little wave; a ripple.
   1913 webster

[2] : WordNet (r) 2.0

wavelet
     n : a small wave on the surface of a liquid syn: ripple, rippling,
          riffle
see also:
ripple rippling riffle 

[3] : The Free On-line Dictionary of Computing (27 SEP 03)

wavelet
     
         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://www.mat.sbg.ac.at/~uhl/wav.html.
     
        "ten lectures on wavelets", ingrid daubechies.
     
        1994-11-09
     
     
see also:
frequency fourier transforms fourier transform sine waves amplitude lt;sbg austriagt; 

Wavelet >> W Words
Wavelet, definition of term: Wavelet
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