Universal reconstruction method for radiometric quality improvement of remote sensing images |
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Authors: | Huanfeng Shen Yaolin Liu Tinghua Ai Yi Wang Bo Wu |
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Institution: | 1. School of Resource and Environmental Science, Wuhan University, 129 Luoyu Road, Wuhan 430079, Hubei, China;2. Institute of Geophysics and Geomatics, China University of Geosciences, Wuhan, China;3. Key Lab of Spatial Data Mining & Information Sharing of Ministry of Education, Fuzhou University, Fuzhou, China |
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Abstract: | The performance of remote sensing images in some applications is often affected by the existence of noise, blurring, stripes and corrupted pixels, as well as the hardware limits of the sensor with respect to spatial resolution. This paper presents a universal reconstruction method that can be used to improve the image quality by performing image denoising, deconvolution, destriping, inpainting, interpolation and super-resolution reconstruction. The proposed method consists of two parts: a universal image observation model and a universal image reconstruction model. In the observation model, most degradation processes in remote sensing imaging are considered in order to relate the desired image to the observed images. For the reconstruction model, we use the maximum a posteriori (MAP) framework to set up the minimization energy equation. The likelihood probability density function (PDF) is constructed based on the image observation model, and a robust Huber–Markov model is employed as the prior PDF. Experimental results are presented to illustrate the effectiveness of the proposed method. |
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Keywords: | Remote sensing image Radiometric quality improvement Universal reconstruction method |
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