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Haze removal is an extremely challenging task, and object detection in the hazy environment has recently gained much attention due to the popularity of autonomous driving and traffic surveillance. In this work, the authors propose a…

Computer Vision and Pattern Recognition · Computer Science 2021-03-15 Binghan Li , Yindong Hua , Mi Lu

Generative diffusion models have achieved remarkable success in producing high-quality images. However, these models typically operate in continuous intensity spaces, diffusing independently across pixels and color channels. As a result,…

Graphics · Computer Science 2025-05-20 Javier E. Santos , Agnese Marcato , Roman Colman , Nicholas Lubbers , Yen Ting Lin

We propose a unified diffusion model-based correction and super-resolution method to enhance the fidelity and resolution of diverse low-quality data through a two-step pipeline. First, the correction step employs a novel enhanced stochastic…

Numerical Analysis · Mathematics 2025-05-15 Wuzhe Xu , Yulong Lu , Sifan Wang , Tong-Rui Liu

Image manipulation under the guidance of textual descriptions has recently received a broad range of attention. In this study, we focus on the regional editing of images with the guidance of given text prompts. Different from current…

Computer Vision and Pattern Recognition · Computer Science 2023-02-24 Nisha Huang , Fan Tang , Weiming Dong , Tong-Yee Lee , Changsheng Xu

Recovering noise-covered details from low-light images is challenging, and the results given by previous methods leave room for improvement. Recent diffusion models show realistic and detailed image generation through a sequence of…

Computer Vision and Pattern Recognition · Computer Science 2023-05-18 Dewei Zhou , Zongxin Yang , Yi Yang

Image dehazing is an ill-posed problem that has been extensively studied in the recent years. The objective performance evaluation of the dehazing methods is one of the major obstacles due to the lacking of a reference dataset. While the…

Computer Vision and Pattern Recognition · Computer Science 2020-05-08 Codruta O. Ancuti , Cosmin Ancuti , Radu Timofte

Single image dehazing as a fundamental low-level vision task, is essential for the development of robust intelligent surveillance system. In this paper, we make an early effort to consider dehazing robustness under variational haze density,…

Computer Vision and Pattern Recognition · Computer Science 2022-03-30 De Cheng , Yan Li , Dingwen Zhang , Nannan Wang , Xinbo Gao , Jiande Sun

Existing single image dehazing methods have demonstrated satisfactory performance on homogeneous thin-haze images; however, they often struggle with non-homogeneous hazy images that exhibit spatially varying haze concentrations and abrupt…

Computer Vision and Pattern Recognition · Computer Science 2026-05-05 Yingming Zhang , Wuqi Su , Qing Xiao , Yonggang Yang

Single image haze removal is an extremely challenging problem due to its inherent ill-posed nature. Several prior-based and learning-based methods have been proposed in the literature to solve this problem and they have achieved superior…

Computer Vision and Pattern Recognition · Computer Science 2019-04-23 He Zhang , Vishwanath Sindagi , Vishal M. Patel

Enhancing visual qualities for underexposed images is an extensively concerned task that plays important roles in various areas of multimedia and computer vision. Most existing methods often fail to generate high-quality results with…

Computer Vision and Pattern Recognition · Computer Science 2019-07-18 Risheng Liu , Long Ma , Yuxi Zhang , Xin Fan , Zhongxuan Luo

Diffusion models in image Super-Resolution (SR) treat all image regions uniformly, which risks compromising the overall image quality by potentially introducing artifacts during denoising of less-complex regions. To address this, we propose…

Computer Vision and Pattern Recognition · Computer Science 2025-04-14 Brian B. Moser , Stanislav Frolov , Federico Raue , Sebastian Palacio , Andreas Dengel

Image dehazing faces challenges when dealing with hazy images in real-world scenarios. A huge domain gap between synthetic and real-world haze images degrades dehazing performance in practical settings. However, collecting real-world image…

Computer Vision and Pattern Recognition · Computer Science 2024-04-16 Chih-Ling Chang , Fu-Jen Tsai , Zi-Ling Huang , Lin Gu , Chia-Wen Lin

The key procedure of haze image translation through adversarial training lies in the disentanglement between the feature only involved in haze synthesis, i.e.style feature, and the feature representing the invariant semantic content, i.e.…

Computer Vision and Pattern Recognition · Computer Science 2021-11-29 Chi Zhang , Zihang Lin , Liheng Xu , Zongliang Li , Wei Tang , Yuehu Liu , Gaofeng Meng , Le Wang , Li Li

This paper proposes a novel technique for single image dehazing. Most of the state-of-the-art methods for single image dehazing relies either on Dark Channel Prior (DCP) or on Color line. The proposed method combines the two different…

Computer Vision and Pattern Recognition · Computer Science 2019-06-11 Kushal Borkar , Snehasis Mukherjee

Diffusion-based generative models have shown promise in synthesizing histopathology images to address data scarcity caused by privacy constraints. Diagnostic text reports provide high-level semantic descriptions, and masks offer…

Computer Vision and Pattern Recognition · Computer Science 2025-07-01 Mahesh Bhosale , Abdul Wasi , Yuanhao Zhai , Yunjie Tian , Samuel Border , Nan Xi , Pinaki Sarder , Junsong Yuan , David Doermann , Xuan Gong

We present the RAW domain diffusion model (RDDM), an end-to-end diffusion model that restores photo-realistic images directly from the sensor RAW data. While recent sRGB-domain diffusion methods achieve impressive results, they are caught…

Image and Video Processing · Electrical Eng. & Systems 2026-02-03 Yan Chen , Yi Wen , Wei Li , Junchao Liu , Yong Guo , Jie Hu , Xinghao Chen

Exploiting pre-trained diffusion models for restoration has recently become a favored alternative to the traditional task-specific training approach. Previous works have achieved noteworthy success by limiting the solution space using…

Computer Vision and Pattern Recognition · Computer Science 2023-09-20 Peiqing Yang , Shangchen Zhou , Qingyi Tao , Chen Change Loy

Denoising Diffusion Probabilistic Models (DDPMs) have recently achieved remarkable results in conditional and unconditional image generation. The pre-trained models can be adapted without further training to different downstream tasks, by…

Computer Vision and Pattern Recognition · Computer Science 2023-09-19 Asya Grechka , Guillaume Couairon , Matthieu Cord

Dehazing involves removing haze or fog from images to restore clarity and improve visibility by estimating atmospheric scattering effects. While deep learning methods show promise, the lack of paired real-world training data and the…

Computer Vision and Pattern Recognition · Computer Science 2025-09-26 Junseong Shin , Seungwoo Chung , Yunjeong Yang , Tae Hyun Kim

Image dehazing has drawn a significant attention in recent years. Learning-based methods usually require paired hazy and corresponding ground truth (haze-free) images for training. However, it is difficult to collect real-world image pairs,…

Computer Vision and Pattern Recognition · Computer Science 2024-10-22 Ruikun Zhang , Hao Yang , Yan Yang , Ying Fu , Liyuan Pan