Journal of Jilin University Science Edition ›› 2024, Vol. 62 ›› Issue (1): 106-0115.
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CHENG Libo, DONG Lun, LI Zhe, JIA Xiaoning
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Abstract: Aiming at the blurring problem of remote sensing images, we designed an image restoration algorithm based on non-subsampled shearlet transformation and sparse prior. Firstly, the image recovery model was created by setting the sparse a priori condition of remote sensing image under non-subsampled shearlet decomposition of the high-frequency image. Secondly, the model was solved by using the alternating direction multiplier method. Thirdly, the high-frequency image was restricted by the soft thresholding method, and the guided filtering was conducted in the low-frequency image to maintain the detailed information of the image as much as possible. Finally, the high-frequency image and the low-frequency image were reconstructed, the reconstructed image was subjected to deep denoising by using convolutional neural networks, ultimately restoring a clear image. The deblurring algorithm was compared with H-PNP, GSR, and L2TV algorithms through experiments. The experimental results show that the algorithm can effectively remove blurring and noise in remote sensing images, preserve the edge details of the image, and the objective evaluation indexes are higher than the other three comparative experimental algorithms.
Key words: remote sensing image, non-subsampled shearlet transformation, sparse prior, image deblurring, alternating direction multiplier method
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CHENG Libo, DONG Lun, LI Zhe, JIA Xiaoning. Remote Sensing Image Deblurring Method Based on NSST and Sparse Prior[J].Journal of Jilin University Science Edition, 2024, 62(1): 106-0115.
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