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Single image defogging is a classical and challenging problem in computer vision. Existing methods towards this problem mainly include handcrafted priors based methods that rely on the use of the atmospheric degradation model and learning…

Computer Vision and Pattern Recognition · Computer Science 2023-07-19 Wei Liu , Xianxu Hou , Jiang Duan , Guoping Qiu

Existing approaches for restoring weather-degraded images follow a fully-supervised paradigm and they require paired data for training. However, collecting paired data for weather degradations is extremely challenging, and existing methods…

Computer Vision and Pattern Recognition · Computer Science 2022-04-26 Rajeev Yasarla , Vishwanath A. Sindagi , Vishal M. Patel

Due to the light absorption and scattering induced by the water medium, underwater images usually suffer from some degradation problems, such as low contrast, color distortion, and blurring details, which aggravate the difficulty of…

Image and Video Processing · Electrical Eng. & Systems 2024-12-20 Runmin Cong , Wenyu Yang , Wei Zhang , Chongyi Li , Chun-Le Guo , Qingming Huang , Sam Kwong

In this paper we have present an improved Cycle GAN based model for under water image enhancement. We have utilized the cycle consistent learning technique of the state-of-the-art Cycle GAN model with modification in the loss function in…

Computer Vision and Pattern Recognition · Computer Science 2024-04-12 Tashmoy Ghosh

In real-world underwater environment, exploration of seabed resources, underwater archaeology, and underwater fishing rely on a variety of sensors, vision sensor is the most important one due to its high information content, non-intrusive,…

Image and Video Processing · Electrical Eng. & Systems 2021-03-29 Nan Wang , Yabin Zhou , Fenglei Han , Haitao Zhu , Jingzheng Yao

Underwater images are usually covered with a blue-greenish colour cast, making them distorted, blurry or low in contrast. This phenomenon occurs due to the light attenuation given by the scattering and absorption in the water column. In…

Image and Video Processing · Electrical Eng. & Systems 2022-11-21 Salma Gonzalez-Sabbagh , Antonio Robles-Kelly , Shang Gao

Existing approaches towards single image dehazing including both model-based and learning-based heavily rely on the estimation of so-called transmission maps. Despite its conceptual simplicity, using transmission maps as an intermediate…

Computer Vision and Pattern Recognition · Computer Science 2018-05-04 Yixin Du , Xin Li

Unpaired image-to-image translation has broad applications in art, design, and scientific simulations. One early breakthrough was CycleGAN that emphasizes one-to-one mappings between two unpaired image domains via generative-adversarial…

Computer Vision and Pattern Recognition · Computer Science 2022-10-19 Dmitrii Torbunov , Yi Huang , Haiwang Yu , Jin Huang , Shinjae Yoo , Meifeng Lin , Brett Viren , Yihui Ren

The environmental perception of autonomous vehicles in normal conditions have achieved considerable success in the past decade. However, various unfavourable conditions such as fog, low-light, and motion blur will degrade image quality and…

Computer Vision and Pattern Recognition · Computer Science 2024-05-14 Zhanwen Liu , Yuhang Li , Yang Wang , Bolin Gao , Yisheng An , Xiangmo Zhao

Different rain models and novel network structures have been proposed to remove rain streaks from single rainy images. In this work, we bring attention to the intrinsic priors and multi-scale features of the rainy images, and develop…

Computer Vision and Pattern Recognition · Computer Science 2019-11-26 Yinglong Wang , Chao Ma , Bing Zeng

Low-light image sequences generally suffer from spatio-temporal incoherent noise, flicker and blurring of moving objects. These artefacts significantly reduce visual quality and, in most cases, post-processing is needed in order to generate…

Image and Video Processing · Electrical Eng. & Systems 2022-03-04 N. Anantrasirichai , David Bull

Adversarial learning-based image defogging methods have been extensively studied in computer vision due to their remarkable performance. However, most existing methods have limited defogging capabilities for real cases because they are…

Computer Vision and Pattern Recognition · Computer Science 2023-04-28 Wei Liu , Cheng Chen , Rui Jiang , Tao Lu , Zixiang Xiong

Due to the proliferation and widespread use of deep neural networks (DNN), their Intellectual Property Rights (IPR) protection has become increasingly important. This paper presents a novel model watermarking method for an unsupervised…

Cryptography and Security · Computer Science 2025-03-11 Dongdong Lin , Benedetta Tondi , Bin Li , Mauro Barni

Image restoration has seen great progress in the last years thanks to the advances in deep neural networks. Most of these existing techniques are trained using full supervision with suitable image pairs to tackle a specific degradation.…

Image and Video Processing · Electrical Eng. & Systems 2020-09-11 Leonhard Helminger , Michael Bernasconi , Abdelaziz Djelouah , Markus Gross , Christopher Schroers

Image composition is a complex task which requires a lot of information about the scene for an accurate and realistic composition, such as perspective, lighting, shadows, occlusions, and object interactions. Previous methods have…

Computer Vision and Pattern Recognition · Computer Science 2024-07-17 Amr Ghoneim , Jiju Poovvancheri , Yasushi Akiyama , Dong Chen

Most existing single image deraining methods require learning supervised models from a large set of paired synthetic training data, which limits their generality, scalability and practicality in real-world multimedia applications. Besides,…

Computer Vision and Pattern Recognition · Computer Science 2018-11-22 Xin Jin , Zhibo Chen , Jianxin Lin , Zhikai Chen , Wei Zhou

This paper reports on WaterGAN, a generative adversarial network (GAN) for generating realistic underwater images from in-air image and depth pairings in an unsupervised pipeline used for color correction of monocular underwater images.…

Computer Vision and Pattern Recognition · Computer Science 2017-10-27 Jie Li , Katherine A. Skinner , Ryan M. Eustice , Matthew Johnson-Roberson

The goal of this work is to apply a denoising image transformer to remove the distortion from underwater images and compare it with other similar approaches. Automatic restoration of underwater images plays an important role since it allows…

Image and Video Processing · Electrical Eng. & Systems 2022-04-11 Abderrahmene Boudiaf , Yuhang Guo , Adarsh Ghimire , Naoufel Werghi , Giulia De Masi , Sajid Javed , Jorge Dias

Autonomous driving perception systems are particularly vulnerable in foggy conditions, where light scattering reduces contrast and obscures fine details critical for safe operation. While numerous defogging methods exist, from handcrafted…

Computer Vision and Pattern Recognition · Computer Science 2026-01-27 Ardalan Aryashad , Parsa Razmara , Amin Mahjoub , Seyedarmin Azizi , Mahdi Salmani , Arad Firouzkouhi

Most deraining works focus on rain streaks removal but they cannot deal adequately with heavy rain images. In heavy rain, streaks are strongly visible, dense rain accumulation or rain veiling effect significantly washes out the image,…

Computer Vision and Pattern Recognition · Computer Science 2019-04-11 Ruotent Li , Loong Fah Cheong , Robby T. Tan
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