Back to Search
Start Over
Two New Efficient Iterative Regularization Methods for Image Restoration Problems.
- Source :
-
Abstract & Applied Analysis . 2013, p1-9. 9p. - Publication Year :
- 2013
-
Abstract
- Iterative regularization methods are efficient regularization tools for image restoration problems. The IDR(s) and LSMR methods are state-of-the-arts iterative methods for solving large linear systems. Recently, they have attracted considerable attention. Little is known of them as iterative regularization methods for image restoration. In this paper, we study the regularization properties of the IDR(s) and LSMR methods for image restoration problems. Comparative numerical experiments show that IDR(s) can give a satisfactory solution with much less computational cost in some situations than the classic method LSQR when the discrepancy principle is used as a stopping criterion. Compared to LSQR, LSMR usually produces amore accurate solution by using the L-curve method to choose the regularization parameter. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10853375
- Database :
- Academic Search Index
- Journal :
- Abstract & Applied Analysis
- Publication Type :
- Academic Journal
- Accession number :
- 95426810
- Full Text :
- https://doi.org/10.1155/2013/129652