Title :
Combining total variation and wavelet packet approaches for image deblurring
Author :
Malgouyres, François
Author_Institution :
Dept. of Math., California Univ., Los Angeles, CA, USA
Abstract :
We show two ways to combine wavelet packets and total variation-based deblurring methods. For this purpose, we first recall that it is possible to approximate a convolution by mean of an operator diagonal in a wavelet packet basis. Then, we show two possibilities, which use this property, for combining wavelet packets and total variation approaches. We then show in experiments that, doing this, we can expect to have the advantages of both approaches while avoiding their drawbacks
Keywords :
approximation theory; convolution; image restoration; mathematical operators; variational techniques; wavelet transforms; convolution approximation; image deblurring; operator diagonal; total variation; wavelet packet; Convolution; Entropy; Fourier transforms; Frequency; Image restoration; Kernel; Low pass filters; Wavelet coefficients; Wavelet packets;
Conference_Titel :
Variational and Level Set Methods in Computer Vision, 2001. Proceedings. IEEE Workshop on
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7695-1278-X
DOI :
10.1109/VLSM.2001.938882