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research article
A New Family of Complex Rotation-Covariant Multiresolution Bases in 2D
We present complex rotation-covariant multiresolution families aimed for image analysis. Since they are complex-valued functions, they provide the important phase information, which is missing in the discrete wavelet transform with real wavelets. Our basis elements have nice properties in Hilbert space such as smoothness of fractional order α ∈ $ R ^{ + } $ . The corresponding filters allow a FFT-based implementation and thus provide a fast algorithm for the wavelet transform.
Type
research article
Publication date
2003
Publisher
Issue
San Diego CA, USA
Start page
475
End page
479
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
September 18, 2015
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