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An Improved Adaptive Deconvolution Algorithm for Single Image Deblurring
Joint Authors
Source
Mathematical Problems in Engineering
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-02-19
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
One of the most common defects in digital photography is motion blur caused by camera shake.
Shift-invariant motion blur can be modeled as a convolution of the true latent image and a point spread function (PSF) with additive noise.
The goal of image deconvolution is to reconstruct a latent image from a degraded image.
However, ringing is inevitable artifacts arising in the deconvolution stage.
To suppress undesirable artifacts, regularization based methods have been proposed using natural image priors to overcome the ill-posedness of deconvolution problem.
When the estimated PSF is erroneous to some extent or the PSF size is large, conventional regularization to reduce ringing would lead to loss of image details.
This paper focuses on the nonblind deconvolution by adaptive regularization which preserves image details, while suppressing ringing artifacts.
The way is to control the regularization weight adaptively according to the image local characteristics.
We adopt elaborated reference maps that indicate the edge strength so that textured and smooth regions can be distinguished.
Then we impose an appropriate constraint on the optimization process.
The experiments’ results on both synthesized and real images show that our method can restore latent image with much fewer ringing and favors the sharp edges.
American Psychological Association (APA)
Tsai, Hsin-Che& Wu, Jiunn-Lin. 2014. An Improved Adaptive Deconvolution Algorithm for Single Image Deblurring. Mathematical Problems in Engineering،Vol. 2014, no. 2014, pp.1-11.
https://search.emarefa.net/detail/BIM-488943
Modern Language Association (MLA)
Tsai, Hsin-Che& Wu, Jiunn-Lin. An Improved Adaptive Deconvolution Algorithm for Single Image Deblurring. Mathematical Problems in Engineering No. 2014 (2014), pp.1-11.
https://search.emarefa.net/detail/BIM-488943
American Medical Association (AMA)
Tsai, Hsin-Che& Wu, Jiunn-Lin. An Improved Adaptive Deconvolution Algorithm for Single Image Deblurring. Mathematical Problems in Engineering. 2014. Vol. 2014, no. 2014, pp.1-11.
https://search.emarefa.net/detail/BIM-488943
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-488943