WGAN-Based Image Denoising Algorithm

WGAN-Based Image Denoising Algorithm

XiuFang Zou, Dingju Zhu, Jun Huang, Wei Lu, Xinchu Yao, Zhaotong Lian
Copyright: © 2022 |Pages: 20
DOI: 10.4018/JGIM.300821
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Abstract

Traditional image denoising algorithms are generally based on spatial domains or transform domains to denoise and smooth the image. The denoised images are not exhaustive, and the depth-of-learning algorithm has better denoising effect and performs well while retaining the original image texture details such as edge characters. In order to enhance denoising capability of images by the restoration of texture details and noise reduction, this article proposes a network model based on the Wasserstein GAN. In the generator, small convolution size is used to extract image features with noise. The extracted image features are denoised, fused and reconstructed into denoised images. A new residual network is proposed to improve the noise removal effect. In the confrontation training, different loss functions are proposed in this paper.
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The combination of deep learning has a significant impact on image denoising. The main methods include multilayer perceptron (Rosenblatt, 1959), automatic encoder (Rumelhart, Hinton, & Williams, 1985), and deep convolutional neural network (LeCun et al., 1989). Burger et al. (Harold Christopher Burger, Christian J Schuler, & Stefan Harmeling, 2012a, 2012b) used multilayer perceptron for image denoising, which had a better denoising impact than BM3D. In 2017, Zhang et al. (K. Zhang et al., 2017) proposed a deep convolutional neural Gaussian noise denoising network (DnCNN) based on residual learning. Its denoising result is better than that of other traditional denoising algorithms, and it is currently considered as one of the best denoising algorithms. Cheng Chung Ming at al. (C.-M. Chen, Zhang, & Hsu, 2020) developed a new model to achieve extraction of weak edges in speckle noisy images, the level set model called Edge Attraction Force. Kuo-Kun (Tseng et al., 2019) used Kalman filtering to estimate the state of a dynamic system based on a series of measurements that did not fully account for the noise.

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