Domain decomposition method for image deblurring

Jing Xu, Hui Bin Chang, Jing Qin

Research output: Contribution to journalReview articlepeer-review

13 Scopus citations

Abstract

As a fundamental problem in image processing, image deblurring has still attracted a lot of research attention. Due to the large computational cost, especially for high-resolution images, it becomes challenging to solve the deblurring minimization problem and the underlying partial differential equations. The domain decomposition method (DD), as one of the most efficient algorithms for solving large scale problems, had not been applied directly to image deblurring because of the global characteristic of the blur operator. In this paper, in order to avoid separating the blur operator, we propose an algorithm for directly solving the total variational based minimization problems with DD. Various numerical experiments and comparisons demonstrate that the larger the image size is, the more efficient the proposed method is in saving running time. The parallelization has also been realized by using the parallel computing toolbox of MATLAB.

Original languageEnglish
Pages (from-to)401-414
Number of pages14
JournalJournal of Computational and Applied Mathematics
Volume271
DOIs
StatePublished - Dec 1 2014

Bibliographical note

Funding Information:
This research is supported by Singapore MOE Grant T207B2202 , and Singapore NRF 2007IDM-IDM002-010 . The research of the first author is also partially supported by Youth Foundation of NSFC with Grant Nos. 11001239 , 11101365 , and 11201420 . The second author is partially supported by PHD Programme 52XB1304 of Tianjin Normal University and NSFC with Grant No. 11071080 .

Funding

This research is supported by Singapore MOE Grant T207B2202 , and Singapore NRF 2007IDM-IDM002-010 . The research of the first author is also partially supported by Youth Foundation of NSFC with Grant Nos. 11001239 , 11101365 , and 11201420 . The second author is partially supported by PHD Programme 52XB1304 of Tianjin Normal University and NSFC with Grant No. 11071080 .

FundersFunder number
Youth Foundation of NSFC11101365, 52XB1304, 11201420, 11001239
Danish National Research Foundation2007IDM-IDM002-010
Ministry of Education - SingaporeT207B2202
National Natural Science Foundation of China (NSFC)11071080
Tianjin Normal University

    Keywords

    • Image deblurring
    • Overlapping domain decomposition
    • Total variation minimization

    ASJC Scopus subject areas

    • Computational Mathematics
    • Applied Mathematics

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