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Distortion rectification is often required for fisheye images. The generation-based method is one mainstream solution due to its label-free property, but its naive skip-connection and overburdened decoder will cause blur and incomplete…

计算机视觉与模式识别 · 计算机科学 2021-04-01 Shangrong Yang , Chunyu Lin , Kang Liao , Chunjie Zhang , Yao Zhao

Recent advancements in unpaired dehazing, particularly those using GANs, show promising performance in processing real-world hazy images. However, these methods tend to face limitations due to the generator's limited transport mapping…

计算机视觉与模式识别 · 计算机科学 2025-07-15 Yunwei Lan , Zhigao Cui , Xin Luo , Chang Liu , Nian Wang , Menglin Zhang , Yanzhao Su , Dong Liu

Image dehazing aims to remove unwanted hazy artifacts in images. Although previous research has collected paired real-world hazy and haze-free images to improve dehazing models' performance in real-world scenarios, these models often…

计算机视觉与模式识别 · 计算机科学 2025-07-22 Fu-Jen Tsai , Yan-Tsung Peng , Yen-Yu Lin , Chia-Wen Lin

To solve the issue of video dehazing, there are two main tasks to attain: how to align adjacent frames to the reference frame; how to restore the reference frame. Some papers adopt explicit approaches (e.g., the Markov random field, optical…

计算机视觉与模式识别 · 计算机科学 2021-07-19 Runde Li

The advancement of imaging devices and countless image data generated everyday impose an increasingly high demand on efficient and effective image denoising. In this paper, we present a computationally simple denoising algorithm, termed…

图像与视频处理 · 电气工程与系统科学 2025-08-15 Zhaoming Kong , Jiahuan Zhang , Xiaowei Yang

We present a comprehensive study and evaluation of existing single image dehazing algorithms, using a new large-scale benchmark consisting of both synthetic and real-world hazy images, called REalistic Single Image DEhazing (RESIDE). RESIDE…

计算机视觉与模式识别 · 计算机科学 2019-04-23 Boyi Li , Wenqi Ren , Dengpan Fu , Dacheng Tao , Dan Feng , Wenjun Zeng , Zhangyang Wang

Image denoising methods must effectively model, implicitly or explicitly, the vast diversity of patterns and textures that occur in natural images. This is challenging, even for modern methods that leverage deep neural networks trained to…

计算机视觉与模式识别 · 计算机科学 2019-12-11 Zhihao Xia , Ayan Chakrabarti

Unpaired training has been verified as one of the most effective paradigms for real scene dehazing by learning from unpaired real-world hazy and clear images. Although numerous studies have been proposed, current methods demonstrate limited…

计算机视觉与模式识别 · 计算机科学 2025-03-20 Yunwei Lan , Zhigao Cui , Chang Liu , Jialun Peng , Nian Wang , Xin Luo , Dong Liu

In this paper, we propose a very deep fully convolutional encoding-decoding framework for image restoration such as denoising and super-resolution. The network is composed of multiple layers of convolution and de-convolution operators,…

计算机视觉与模式识别 · 计算机科学 2016-09-02 Xiao-Jiao Mao , Chunhua Shen , Yu-Bin Yang

Unpaired image dehazing (UID) holds significant research importance due to the challenges in acquiring haze/clear image pairs with identical backgrounds. This paper proposes a novel method for UID named Orthogonal Decoupling Contrastive…

计算机视觉与模式识别 · 计算机科学 2024-04-30 Zhongze Wang , Haitao Zhao , Jingchao Peng , Lujian Yao , Kaijie Zhao

Recently, digital holographic imaging techniques (including methods with heterodyne detection) have found increased attention in the terahertz (THz) frequency range. However, holographic techniques rely on the use of a reference beam in…

光学 · 物理学 2022-12-14 Mingjun Xiang , Hui Yuan , Lingxiao Wang , Kai Zhou , Hartmut G. Roskos

Image dehazing is a crucial image pre-processing task aimed at removing the incoherent noise generated by haze to improve the visual appeal of the image. The existing models use sophisticated networks and custom loss functions which are…

计算机视觉与模式识别 · 计算机科学 2020-08-25 Pavan A , Adithya Bennur , Mohit Gaggar , Shylaja S S

Terahertz (THz) imaging is one of the hotspots in the field of optics, where the depth information retrieval is a key factor to restore the three-dimensional appearance of objects. Impressive results for depth extraction in visible and…

光学 · 物理学 2024-07-09 Mingjun Xiang , Hui Yuan , Kai Zhou , Hartmut G. Roskos

Image Dehazing aims to remove atmospheric fog or haze from an image. Although the Dehazing models have evolved a lot in recent years, few have precisely tackled the problem of High-Resolution hazy images. For this kind of image, the model…

计算机视觉与模式识别 · 计算机科学 2024-09-04 Bilel Benjdira , Anas M. Ali , Anis Koubaa

Ultra-High-Definition (UHD) image dehazing faces challenges such as limited scene adaptability in prior-based methods and high computational complexity with color distortion in deep learning approaches. To address these issues, we propose…

计算机视觉与模式识别 · 计算机科学 2025-11-13 Xingchi Chen , Pu Wang , Xuerui Li , Chaopeng Li , Juxiang Zhou , Jianhou Gan , Dianjie Lu , Guijuan Zhang , Wenqi Ren , Zhuoran Zheng

We propose an efficient neural network for RAW image denoising. Although neural network-based denoising has been extensively studied for image restoration, little attention has been given to efficient denoising for compute limited and power…

图像与视频处理 · 电气工程与系统科学 2021-03-19 Lucas D. Young , Fitsum A. Reda , Rakesh Ranjan , Jon Morton , Jun Hu , Yazhu Ling , Xiaoyu Xiang , David Liu , Vikas Chandra

We propose a pixel color amplification theory and family of enhancement methods to facilitate segmentation tasks on retinal images. Our novel re-interpretation of the image distortion model underlying dehazing theory shows how three…

图像与视频处理 · 电气工程与系统科学 2020-07-30 Alex Gaudio , Asim Smailagic , Aurélio Campilho

Machine learning techniques work best when the data used for training resembles the data used for evaluation. This holds true for learned single-image denoising algorithms, which are applied to real raw camera sensor readings but, due to…

计算机视觉与模式识别 · 计算机科学 2018-11-28 Tim Brooks , Ben Mildenhall , Tianfan Xue , Jiawen Chen , Dillon Sharlet , Jonathan T. Barron

Noisy images processing is a fundamental task of computer vision. The first example is the detection of faint edges in noisy images, a challenging problem studied in the last decades. A recent study introduced a fast method to detect faint…

计算机视觉与模式识别 · 计算机科学 2021-10-06 Nati Ofir , Yosi Keller

Deep learning-based methods for low-light image enhancement typically require enormous paired training data, which are impractical to capture in real-world scenarios. Recently, unsupervised approaches have been explored to eliminate the…

计算机视觉与模式识别 · 计算机科学 2021-12-06 Feng Zhang , Yuanjie Shao , Yishi Sun , Kai Zhu , Changxin Gao , Nong Sang