P, FONT face, Verdana, et al. Sparse Image Representation Using the Analytic Contourlet Transform and Its Application on Compressed Sensing[J]. Acta Electronica Sinica, 2010, 38(6): 1293-1298.
DOI:
P, FONT face, Verdana, et al. Sparse Image Representation Using the Analytic Contourlet Transform and Its Application on Compressed Sensing[J]. Acta Electronica Sinica, 2010, 38(6): 1293-1298.DOI:
Sparse Image Representation Using the Analytic Contourlet Transform and Its Application on Compressed Sensing
<FONT face=Verdana>The translation invariant analytic contourlet transform with low redundancy is proposed. In this transform
the circular symmetric filter banks decomposes image into multi-resolution detail subbands and one low-frequency subband
then the detail subbands are processed by Hilbert transform to generate two dimensional analytic signals. At last
the analytic signals are decomposed by directional filter bank to implement analytic contourlet transform with multi-scale
multi-direction
and translation invariant property. The real part and imaginary part of the analytic contourlet basis functions resemble Gabor wavelet
and conform well to the human visual system. The experiments show that the analytic contourlet transform can achieve higher performance in image denoising and compressed sensing.