Sub-band operators and saddle point wavelets

In this paper, a concept of sub-band operator is defined, a 2-circular matrix method is developed and the exact bounds of the sub-band operators are obtained. The method to calculate the bounds of the sub-band operators is described by computing the maximum of a function. In addition, it is found th...

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Veröffentlicht in:	Applied mathematics and computation 2014-01, Vol.227, p.27-42
Hauptverfasser:	Wang, Guoqiu, Zou, Qingyun, Yang, Mengyun
Format:	Artikel
Sprache:	eng
Schlagworte:	2-Circular matrices Bounds estimate Computation Filters of even lengths Image coding Image compression Mathematical analysis Mathematical models Operators Saddle points Sub-band operators Wavelet Wavelet transforms
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