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Unidirectional variation and deep CNN denoiser priors for simultaneously destriping and denoising optical remote sensing images

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Stripe and random noise are two different degradation phenomena commonly co-existing in optical remote sensing images, which are often modelled as inverse problems, respectively. When solving those inverse problems, model-based optimization and discriminative learning methods are fashionably employed but have their respective merits and drawbacks, e.g., model-based optimization methods are flexible but usually time-consuming while discriminative learning methods have fast testing speed but are limited by the specialized task. To improve testing speed and obtain good performance, this paper integrates deep convolutional neural network (DCNN) denoiser prior into unidirectional variation (UV) model, named as UV-DCNN, to simultaneously destripe and denoise optical remote sensing images. The proposed UV-DCNN method can be efficiently solved by the alternating minimization optimization method. Both quantitative and qualitative experiment results validate that the proposed method is effective and even better than the state-of-the-arts, its satisfactory computation time makes it suitable for extensive application.
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Document Type: Research Article

Affiliations: 1: Hubei Engineering Research Center of Video Image and HD Projection, Wuhan Institute of Technology, Wuhan, Hubei, China 2: School of Automation, Huazhong University of Science and Technology, Wuhan, Hubei, China 3: School of Physics and Information Engineering, Jianghan University, Wuhan, Hubei, China

Publication date: August 3, 2019

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