7 January 2013 Gradient-based image deconvolution
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J. of Electronic Imaging, 22(1), 013006 (2013). doi:10.1117/1.JEI.22.1.013006
Abstract
Image restoration and deconvolution from blurry and noisy observation is known to be ill-posed. To stabilize the recovery, total variation (TV) regularization is often utilized for its beneficial edge in preserving the image’s property. We take a different approach of TV regularization for image restoration. We first recover horizontal and vertical differences of images individually through some successful deconvolution algorithms. We restore horizontal and vertical difference images separately so that each is more sparse or compressible than the corresponding original image with a TV measure. Then we develop a novel deconvolution method that recovers the horizontal and vertical gradients, respectively, and then estimate the original image from these gradients. Various experiments that compare the effectiveness of the proposed method against the traditional TV methods are presented. Experimental results are provided to show the improved performance of our method for deconvolution problems.
© 2013 SPIE and IS&T
Heyan Huang, Hang Yang, Siliang Ma, "Gradient-based image deconvolution," Journal of Electronic Imaging 22(1), 013006 (7 January 2013). http://dx.doi.org/10.1117/1.JEI.22.1.013006
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KEYWORDS
Image restoration

Deconvolution

Signal to noise ratio

Image deconvolution

Image quality

Image analysis

Fourier transforms

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