The dual-tree complex wavelet transform

@article{Selesnick2005TheDC,
  title={The dual-tree complex wavelet transform},
  author={Ivan W. Selesnick and Richard Baraniuk and Nick Kingsbury},
  journal={IEEE Signal Processing Magazine},
  year={2005},
  volume={22},
  pages={123-151}
}
The paper discusses the theory behind the dual-tree transform, shows how complex wavelets with good properties can be designed, and illustrates a range of applications in signal and image processing. The authors use the complex number symbol C in CWT to avoid confusion with the often-used acronym CWT for the (different) continuous wavelet transform. The four fundamentals, intertwined shortcomings of wavelet transform and some solutions are also discussed. Several methods for filter design are… 

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