13 June 2023 Enhancing haze removal and super-resolution in real-world images: a cycle generative adversarial network-based approach for synthesizing paired hazy and clear images
Xinyu Su, Jie Zhuge, Huaying Wang, Tao Wang, Zhengsheng Hu, Xiaolei Zhang, Pei Li, Qun Su, Zhao Dong
Author Affiliations +
Abstract

Haze significantly impacts various fields, such as autonomous driving, smart cities, and security monitoring. Deep learning has been proven effective in removing haze from images. However, obtaining pixel-aligned hazy and clear paired images in the real world can be challenging. Therefore, synthesized hazed images are often used for training deep networks. These images are typically generated based on parameters such as depth information and atmospheric scattering coefficient. However, this approach may cause the loss of important haze details, leading to color distortion or incomplete dehazed images. To address this problem, this paper proposes a method for synthesizing hazed images using a cycle generative adversarial network (CycleGAN). The CycleGAN is trained with unpaired hazy and clear images to learn the features of the hazy images. Then, the real haze features are added to clear images using the trained CycleGAN, resulting in well-pixel-aligned synthesized hazy and clear paired images that can be used for dehaze training. The results demonstrate that the dataset synthesized using this method efficiently solves the problem associated with traditional synthesized datasets. Furthermore, the dehazed images are restored using a super-resolution algorithm, enabling the obtainment of high-resolution clear images. This method has broadened the applications of deep learning in haze removal, particularly highlighting its potential in the fields of autonomous driving and smart cities.

© 2023 Society of Photo-Optical Instrumentation Engineers (SPIE)
Xinyu Su, Jie Zhuge, Huaying Wang, Tao Wang, Zhengsheng Hu, Xiaolei Zhang, Pei Li, Qun Su, and Zhao Dong "Enhancing haze removal and super-resolution in real-world images: a cycle generative adversarial network-based approach for synthesizing paired hazy and clear images," Optical Engineering 62(6), 063101 (13 June 2023). https://doi.org/10.1117/1.OE.62.6.063101
Received: 11 April 2023; Accepted: 31 May 2023; Published: 13 June 2023
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Cited by 1 scholarly publication.
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KEYWORDS
Air contamination

Education and training

Super resolution

Atmospheric modeling

Data modeling

Image processing

Image quality

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