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Low-light image enhancement exhibits an ill-posed nature, as a given image may have many enhanced versions, yet recent studies focus on building a deterministic mapping from input to an enhanced version. In contrast, we propose a…

计算机视觉与模式识别 · 计算机科学 2021-10-05 Xiaopeng Sun , Muxingzi Li , Tianyu He , Lubin Fan

Low-light image enhancement is generally regarded as a challenging task in image processing, especially for the complex visual tasks at night or weakly illuminated. In order to reduce the blurs or noises on the low-light images, a large…

计算机视觉与模式识别 · 计算机科学 2019-06-17 Yangming Shi , Xiaopo Wu , Ming Zhu

In this paper, we tackle the problem of enhancing real-world low-light images with significant noise in an unsupervised fashion. Conventional unsupervised learning-based approaches usually tackle the low-light image enhancement problem…

图像与视频处理 · 电气工程与系统科学 2022-03-29 Wei Xiong , Ding Liu , Xiaohui Shen , Chen Fang , Jiebo Luo

Low light image enhancement is an important challenge for the development of robust computer vision algorithms. The machine learning approaches to this have been either unsupervised, supervised based on paired dataset or supervised based on…

图像与视频处理 · 电气工程与系统科学 2021-10-25 Harshana Weligampola , Gihan Jayatilaka , Suren Sritharan , Roshan Godaliyadda , Parakrama Ekanayaka , Roshan Ragel , Vijitha Herath

To enhance low-light images to normally-exposed ones is highly ill-posed, namely that the mapping relationship between them is one-to-many. Previous works based on the pixel-wise reconstruction losses and deterministic processes fail to…

图像与视频处理 · 电气工程与系统科学 2021-09-14 Yufei Wang , Renjie Wan , Wenhan Yang , Haoliang Li , Lap-Pui Chau , Alex C. Kot

Image captured under low-light conditions presents unpleasing artifacts, which debilitate the performance of feature extraction for many upstream visual tasks. Low-light image enhancement aims at improving brightness and contrast, and…

计算机视觉与模式识别 · 计算机科学 2023-07-28 Zhijian Luo , Jiahui Tang , Yueen Hou , Zihan Huang , Yanzeng Gao

Restoring images from low-light data is a challenging problem. Most existing deep-network based algorithms are designed to be trained with pairwise images. Due to the lack of real-world datasets, they usually perform poorly when generalized…

图像与视频处理 · 电气工程与系统科学 2020-12-25 Yangyang Qu , Chao liu , Yongsheng Ou

Getting rid of the fundamental limitations in fitting to the paired training data, recent unsupervised low-light enhancement methods excel in adjusting illumination and contrast of images. However, for unsupervised low light enhancement,…

计算机视觉与模式识别 · 计算机科学 2022-07-05 Zhangkai Ni , Wenhan Yang , Hanli Wang , Shiqi Wang , Lin Ma , Sam Kwong

Deep learning-based methods have achieved remarkable success in image restoration and enhancement, but are they still competitive when there is a lack of paired training data? As one such example, this paper explores the low-light image…

计算机视觉与模式识别 · 计算机科学 2021-01-26 Yifan Jiang , Xinyu Gong , Ding Liu , Yu Cheng , Chen Fang , Xiaohui Shen , Jianchao Yang , Pan Zhou , Zhangyang Wang

This paper tackles unpaired image enhancement, a task of learning a mapping function which transforms input images into enhanced images in the absence of input-output image pairs. Our method is based on generative adversarial networks…

计算机视觉与模式识别 · 计算机科学 2019-12-18 Satoshi Kosugi , Toshihiko Yamasaki

In the field of computer vision, visible light images often exhibit low contrast in low-light conditions, presenting a significant challenge. While infrared imagery provides a potential solution, its utilization entails high costs and…

计算机视觉与模式识别 · 计算机科学 2024-04-30 Yijia Chen , Pinghua Chen , Xiangxin Zhou , Yingtie Lei , Ziyang Zhou , Mingxian Li

Limited angle CT reconstruction is an under-determined linear inverse problem that requires appropriate regularization techniques to be solved. In this work we study how pre-trained generative adversarial networks (GANs) can be used to…

图像与视频处理 · 电气工程与系统科学 2020-01-30 Rushil Anirudh , Hyojin Kim , Jayaraman J. Thiagarajan , K. Aditya Mohan , Kyle M. Champley

Generative adversarial networks (GANs) can synthesize high-quality (HQ) images, and GAN inversion is a technique that discovers how to invert given images back to latent space. While existing methods perform on StyleGAN inversion, they have…

计算机视觉与模式识别 · 计算机科学 2024-12-13 Cheng Yu , Wenmin Wang , Roberto Bugiolacchi

In unsupervised image-to-image translation, the goal is to learn the mapping between an input image and an output image using a set of unpaired training images. In this paper, we propose an extension of the unsupervised image-to-image…

计算机视觉与模式识别 · 计算机科学 2017-11-28 Pramuditha Perera , Mahdi Abavisani , Vishal M. Patel

There remains an important need for the development of image reconstruction methods that can produce diagnostically useful images from undersampled measurements. In magnetic resonance imaging (MRI), for example, such methods can facilitate…

图像与视频处理 · 电气工程与系统科学 2021-06-28 Varun A. Kelkar , Sayantan Bhadra , Mark A. Anastasio

This paper proposes a deep learning-based denoising method for noisy low-dose computerized tomography (CT) images in the absence of paired training data. The proposed method uses a fidelity-embedded generative adversarial network (GAN) to…

计算机视觉与模式识别 · 计算机科学 2019-08-13 Hyoung Suk Park , Jineon Baek , Sun Kyoung You , Jae Kyu Choi , Jin Keun Seo

Image-to-image translation plays a vital role in tackling various medical imaging tasks such as attenuation correction, motion correction, undersampled reconstruction, and denoising. Generative adversarial networks have been shown to…

计算机视觉与模式识别 · 计算机科学 2021-07-05 Uddeshya Upadhyay , Yanbei Chen , Tobias Hepp , Sergios Gatidis , Zeynep Akata

As vision based perception methods are usually built on the normal light assumption, there will be a serious safety issue when deploying them into low light environments. Recently, deep learning based methods have been proposed to enhance…

计算机视觉与模式识别 · 计算机科学 2020-10-21 Junjie Hu , Xiyue Guo , Junfeng Chen , Guanqi Liang , Fuqin Deng , Tin lun Lam

The field of computational imaging has witnessed a promising paradigm shift with the emergence of untrained neural networks, offering novel solutions to inverse computational imaging problems. While existing techniques have demonstrated…

图像与视频处理 · 电气工程与系统科学 2024-11-28 Abeer Banerjee , Sanjay Singh

Despite the success of generative adversarial networks (GANs) for image generation, the trade-off between visual quality and image diversity remains a significant issue. This paper achieves both aims simultaneously by improving the…

计算机视觉与模式识别 · 计算机科学 2018-07-04 Duhyeon Bang , Hyunjung Shim
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