激光与光电子学进展, 2019, 56 (4): 041004, 网络出版: 2019-07-31
基于改进生成对抗网络的水下激光图像后向散射光修复方法 下载: 1148次
Backscattered Light Repairing Method for Underwater Laser Image Based on Improved Generative Adversarial Network
图像处理 水下激光图像 后向散射 非均匀性照明 图像修复 生成对抗网络 image processing underwater laser image backscattering non-uniform illumination image inpainting generative adversarial network
摘要
为提高水下激光图像的质量,改进了生成对抗网络的生成网络,使其成为一种包含跳跃结构和空洞卷积的深度卷积神经网络。利用该网络从自建数据集中学习待修复图像到目标图像的端到端映射参数,再对带有强后向散射光的水下激光图像进行修复。实验结果表明,所提方法能够快速对后向散射光区域进行填充修复,相比传统去噪和增强对比度方法联合处理的结果,所提方法的峰值信噪比平均提高了9.10 dB,特征相似度平均提高了0.11,实现了水下激光图像的去噪、对比度增强和非均匀性照明改善,较好地去除了后向散射光。
Abstract
To improve the qualities of underwater laser images, the generator network of the generative adversarial network is changed to be a deep convolution neural network which contains the jumping structure and the dilated convolution. The network is used to learn the end-to-end parameters which map the unrepaired images to the target images from the self-built data set and repair underwater laser images with strong backscatter light. Compared with the experiment results of the joint processing of the classic denoising method and the contrast enhancement method, the proposed method can fill and repair the backscattered light area. The peak signal to noise ratio obtained by the proposed method increases by an average of 9.10 dB and the feature similarity increases by an average of 0.11. The denoising, enhancing contrast, improving the non-uniform illumination are achieved and the backscattered light is removed well.
张清博, 张晓晖, 韩宏伟. 基于改进生成对抗网络的水下激光图像后向散射光修复方法[J]. 激光与光电子学进展, 2019, 56(4): 041004. Qingbo Zhang, Xiaohui Zhang, Hongwei Han. Backscattered Light Repairing Method for Underwater Laser Image Based on Improved Generative Adversarial Network[J]. Laser & Optoelectronics Progress, 2019, 56(4): 041004.