Title :
Multi-Parameter Regularization Methods for High-Resolution Image Reconstruction With Displacement Errors
Author :
Lu, Yao ; Shen, Lixin ; Xu, Yuesheng
Author_Institution :
Syracuse Univ., Syracuse
Abstract :
We propose multi-parameter regularization methods for high-resolution image reconstruction which is described by an ill-posed problem. The regularization operator for the ill-posed problem is decomposed in a multiscale manner by using bi-orthogonal wavelets or tight frames. In the multiscale framework, for different scales of the operator we introduce different regularization parameters. These methods are analyzed under certain reasonable hypotheses. Numerical examples are presented to demonstrate the efficiency and accuracy of these methods.
Keywords :
image reconstruction; image resolution; wavelet transforms; biorthogonal wavelets; displacement errors; high-resolution image reconstruction; ill-posed problem; multiparameter regularization methods; multiscale framework; regularization operator; Costs; High-resolution imaging; Image processing; Image reconstruction; Image resolution; Linear systems; Optical imaging; Optical sensors; Pixel; Spatial resolution; Multi-parameter regularization; framelets; high-resolution image reconstruction; wavelets;
Journal_Title :
Circuits and Systems I: Regular Papers, IEEE Transactions on
DOI :
10.1109/TCSI.2007.902535