LIU Peng-fei, XIAO Liang. A Fast Algorithm for Image Restoration Based on Hessian Nuclear Norm Regularization[J]. Acta Electronica Sinica, 2015, 43(10): 2001-2008.
LIU Peng-fei, XIAO Liang. A Fast Algorithm for Image Restoration Based on Hessian Nuclear Norm Regularization[J]. Acta Electronica Sinica, 2015, 43(10): 2001-2008. DOI: 10.3969/j.issn.0372-2112.2015.10.018.
the Hessian Nuclear norm regularization method has been a preferable higher order regularization scheme for image restoration
but with the Hessian Nuclear norm regularization term been highly non-linear and non-differentiable
image deblurring and denoising processes are highly coupled so that their minimization algorithms are with highly computational complexity.In this paper
we employ variable splitting to design a fast alternating iterative minimization algorithm with closed-form solutions for image restoration
in which we separate image restoration into image deblurring and denoising.Furthermore
we show the convergence of our proposed algorithm.Finally
experimental results demonstrate the effectiveness of the proposed method which consists in not only giving the improved performance in terms of peak signal to noise ratio (PSNR)
but also exhibiting a much faster convergence rate than the previous majorization-minimization (MM) method for Hessian Nuclear norm regularization based image restoration.