ABSTRACT
From the literature, it is known that nonhomogeneous dual wavelet frames admit fast wavelet transform as homogeneous ones, and have more designing freedom than homogeneous ones. In this paper, we give a characterization of nonhomogeneous dual wavelet frames in , and using this characterization we derive a mixed oblique extension principle for such dual wavelet frames.
Acknowledgements
The authors cordially thank the referees for their careful reading and helpful comments which greatly improve the quality of this article.
Notes
No potential conflict of interest was reported by the authors.