In order to solve the problem that pairwise noisy images and clean images are difficult to obtain in the process of denoising, this paper proposes a multi-modular self-supervised image denoising network based on feed-forward convolutional neural network(MMS-DNet). The algorithm uses the improved DnCNN architecture. By adding a multivariate input module that combines original image down-sampling and global noise level estimation, multiple input sub-images are generated while compensating for the information loss in the generation process. The introduction of redundant information in the image reconstruction process is avoided by adding a sub-pixel convolution module. Experimental results show that the network outperforms existing self-supervised learning algorithms on the BSD68 and Set12 datasets of intensity images, and also achieves good results on CBSD68 and Kodak24 datasets of color images.
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