Adaptive Image Denoising Method Based on Diffusion Equation and Deep Learning
Effective noise removal has become a hot topic in image denoising research while preserving important details of an image. An adaptive threshold image denoising algorithm based on fitting diffusion is proposed. Firstly, the diffusion coefficient in the diffusion equation is improved, and the fitting...
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| Format: | Article |
| Language: | English |
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Wiley
2022-01-01
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| Series: | Journal of Robotics |
| Online Access: | http://dx.doi.org/10.1155/2022/7115551 |
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| author | Shaobin Ma Lan Li Chengwen Zhang |
| author_facet | Shaobin Ma Lan Li Chengwen Zhang |
| author_sort | Shaobin Ma |
| collection | DOAJ |
| description | Effective noise removal has become a hot topic in image denoising research while preserving important details of an image. An adaptive threshold image denoising algorithm based on fitting diffusion is proposed. Firstly, the diffusion coefficient in the diffusion equation is improved, and the fitting diffusion coefficient is established to overcome the defects of texture detail loss and edge degradation caused by excessive diffusion intensity. Then, the threshold function is adaptively designed and improved so that it can automatically control the threshold of the function according to the maximum gray value of the image and the number of iterations, so as to further preserve the important details of the image such as edge and texture. A neural network is used to realize image denoising because of its good learning ability of image statistical characteristics, mainly by the diffusion equation and deep learning (CNN) algorithm as the foundation, focus on the effects of activation function of network optimization, using multiple feature extraction technology in-depth networks to study the characteristics of the input image richer, and how to better use the adaptive algorithm on the depth of diffusion equation and optimization backpropagation learning. The training speed of the model is accelerated and the convergence of the algorithm is improved. Combined with batch standardization and residual learning technology, the image denoising network model based on deep residual learning of the convolutional network is designed with better denoising performance. Finally, the algorithm is compared with other excellent denoising algorithms. From the comparison results, it can be seen that the improved denoising algorithm in this paper can also improve the detail restoration of denoised images without losing the sharpness. Moreover, it has better PSNR than other excellent denoising algorithms at different noise standard deviations. The PSNR of the new algorithm is greatly improved compared with the classical algorithm, which can effectively suppress the noise and protect the image edge and detail information. |
| format | Article |
| id | doaj-art-7ffc8e3d7cc64abaa3fff4430337e359 |
| institution | Kabale University |
| issn | 1687-9619 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Robotics |
| spelling | doaj-art-7ffc8e3d7cc64abaa3fff4430337e3592025-02-03T05:44:38ZengWileyJournal of Robotics1687-96192022-01-01202210.1155/2022/7115551Adaptive Image Denoising Method Based on Diffusion Equation and Deep LearningShaobin Ma0Lan Li1Chengwen Zhang2School of Digital MediaSchool of Digital MediaSchool of Digital MediaEffective noise removal has become a hot topic in image denoising research while preserving important details of an image. An adaptive threshold image denoising algorithm based on fitting diffusion is proposed. Firstly, the diffusion coefficient in the diffusion equation is improved, and the fitting diffusion coefficient is established to overcome the defects of texture detail loss and edge degradation caused by excessive diffusion intensity. Then, the threshold function is adaptively designed and improved so that it can automatically control the threshold of the function according to the maximum gray value of the image and the number of iterations, so as to further preserve the important details of the image such as edge and texture. A neural network is used to realize image denoising because of its good learning ability of image statistical characteristics, mainly by the diffusion equation and deep learning (CNN) algorithm as the foundation, focus on the effects of activation function of network optimization, using multiple feature extraction technology in-depth networks to study the characteristics of the input image richer, and how to better use the adaptive algorithm on the depth of diffusion equation and optimization backpropagation learning. The training speed of the model is accelerated and the convergence of the algorithm is improved. Combined with batch standardization and residual learning technology, the image denoising network model based on deep residual learning of the convolutional network is designed with better denoising performance. Finally, the algorithm is compared with other excellent denoising algorithms. From the comparison results, it can be seen that the improved denoising algorithm in this paper can also improve the detail restoration of denoised images without losing the sharpness. Moreover, it has better PSNR than other excellent denoising algorithms at different noise standard deviations. The PSNR of the new algorithm is greatly improved compared with the classical algorithm, which can effectively suppress the noise and protect the image edge and detail information.http://dx.doi.org/10.1155/2022/7115551 |
| spellingShingle | Shaobin Ma Lan Li Chengwen Zhang Adaptive Image Denoising Method Based on Diffusion Equation and Deep Learning Journal of Robotics |
| title | Adaptive Image Denoising Method Based on Diffusion Equation and Deep Learning |
| title_full | Adaptive Image Denoising Method Based on Diffusion Equation and Deep Learning |
| title_fullStr | Adaptive Image Denoising Method Based on Diffusion Equation and Deep Learning |
| title_full_unstemmed | Adaptive Image Denoising Method Based on Diffusion Equation and Deep Learning |
| title_short | Adaptive Image Denoising Method Based on Diffusion Equation and Deep Learning |
| title_sort | adaptive image denoising method based on diffusion equation and deep learning |
| url | http://dx.doi.org/10.1155/2022/7115551 |
| work_keys_str_mv | AT shaobinma adaptiveimagedenoisingmethodbasedondiffusionequationanddeeplearning AT lanli adaptiveimagedenoisingmethodbasedondiffusionequationanddeeplearning AT chengwenzhang adaptiveimagedenoisingmethodbasedondiffusionequationanddeeplearning |