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• W2049984505 abstract "Image restoration problems, such as image denoising, are important steps in various image processing method, such as image segmentation and object recognition. Due to the edge preserving property of the convex total variation (TV), variational model with TV is commonly used in image restoration. However, staircase artifacts are frequently observed in restored smoothed region. To remove the staircase artifacts in smoothed region, convex higher-order TV (HOTV) regularization methods are introduced. But the valuable edge information of the image is also attenuated. In this paper, we propose non-convex hybrid TV regularization method to significantly reduce staircase artifacts while well preserving the valuable edge information of the image. To efficiently find a solution of the variation model with the proposed regularizer, we use the iterative reweighted method with the augmented Lagrangian based algorithm. The proposed model shows the best performance in terms of the signal-to-noise ratio (SNR) and the structure similarity index measure (SSIM) with comparable computational complexity." @default.
• W2049984505 created "2016-06-24" @default.
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• W2049984505 date "2013-04-01" @default.
• W2049984505 modified "2023-10-14" @default.
• W2049984505 title "Non-convex hybrid total variation for image denoising" @default.
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• W2049984505 doi "https://doi.org/10.1016/j.jvcir.2013.01.010" @default.
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