【摘 要】
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In this paper,we propose a shear high-order gradient(SHOG) operator by combining the shear operator and high-order gradient (HOG) operator.Compared with the HOG operator,the proposed SHOG operator can incorporate more directionality and detect more abunda
【机 构】
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School of Mathematics and Physics,Anhui University of Technology,Maanshan 243002,Anhui,China;School
论文部分内容阅读
In this paper,we propose a shear high-order gradient(SHOG) operator by combining the shear operator and high-order gradient (HOG) operator.Compared with the HOG operator,the proposed SHOG operator can incorporate more directionality and detect more abundant edge information.Based on the SHOG op-erator,we extend the total variation (TV) norm to shear high-order total variation (SHOTV),and then propose a SHOTV deblurring model.We also study some properties of the SHOG operator,and show that the SHOG matrices are Block Circulant with Circulant Blocks (BCCB) when the shear angle is-π/4.The proposed model is solved efficiently by the alternating direction method of multi-pliers (ADMM).Experimental results demonstrate that the pro-posed method outperforms some state-of-the-art non-blind deblur-ring methods in both objective and perceptual quality.
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