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Signal Decomposition Methods for Reducing Drawbacks of the DWT

Ana Sović ; Fakultet elektrotehnike i računarstva Sveučilišta u Zagrebu
Damir Seršić ; Fakultet elektrotehnike i računarstva Sveučilišta u Zagrebu


Puni tekst: engleski pdf 245 Kb

str. 70-77

preuzimanja: 2.833

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Sažetak

Besides many advantages of wavelet transform, it has several drawbacks, e.g. ringing, shift variance, aliasing and lack of directionality. Some of them can be eliminated by using wavelet packet transform, stationary wavelet transform, complex wavelet transform, adaptive directional lifting-based wavelet transform, or adaptive wavelet filter banks that use either L2 or L1 norm. This paper contains an overview of these methods.

Ključne riječi

wavelet transform, filter bank, lifting scheme, complex wavelet transform, adaptive wavelets

Hrčak ID:

84217

URI

https://hrcak.srce.hr/84217

Posjeta: 3.150 *