Multichannel restoration of single channel images using a wavelet decomposition

  title={Multichannel restoration of single channel images using a wavelet decomposition},
  author={Mark R. Banham and Hector L. Gonzalez and Nikolas P. Galatsanos and Aggelos K. Katsaggelos},
  journal={1993 IEEE International Conference on Acoustics, Speech, and Signal Processing},
  pages={281-284 vol.5}
Multichannel linear filtering is applied to the restoration of single-channel images through the use of a wavelet decomposition. A novel matrix structure for the separable 2-D wavelet transform is presented which allows the transformation of block circulant operators, found in 2-D linear filtering problems, into semiblock circulant operators, which are defined here. These operators are easily treated as block diagonal matrices in the wavelet-frequency domain. An adaptive Wiener filter is… CONTINUE READING

Figures and Topics from this paper.


Publications referenced by this paper.

A general framework for frequency domain multichannel signal processing , ” to appear , IEEE Trans . Image PTOC . N . P . Galabanos

  • A. K. Katsaggelos, R. T. Chin, H. Gonzalez