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Despite their recent successes, GAN models for semantic image synthesis still suffer from poor image quality when trained with only adversarial supervision. Historically, additionally employing the VGG-based perceptual loss has helped to…

计算机视觉与模式识别 · 计算机科学 2021-03-23 Vadim Sushko , Edgar Schönfeld , Dan Zhang , Juergen Gall , Bernt Schiele , Anna Khoreva

In everyday life, photographs taken with a camera often suffer from motion blur due to hand vibrations or sudden movements. This phenomenon can significantly detract from the quality of the images captured, making it an interesting…

计算机视觉与模式识别 · 计算机科学 2024-12-30 Zhengdong Li

Because of the necessity to obtain high-quality images with minimal radiation doses, such as in low-field magnetic resonance imaging, super-resolution reconstruction in medical imaging has become more popular (MRI). However, due to the…

图像与视频处理 · 电气工程与系统科学 2022-12-27 Weizhi Du , Harvery Tian

It is widely accepted that medical imaging systems should be objectively assessed via task-based image quality (IQ) measures that ideally account for all sources of randomness in the measured image data, including the variation in the…

计算机视觉与模式识别 · 计算机科学 2025-02-25 Xichen Xu , Wentao Chen , Weimin Zhou

Generative Adversarial Networks (GANs) have obtained extraordinary success in the generation of realistic images, a domain where a lower pixel-level accuracy is acceptable. We study the problem, not yet tackled in the literature, of…

计算机视觉与模式识别 · 计算机科学 2019-07-01 Emanuele Ghelfi , Paolo Galeone , Michele De Simoni , Federico Di Mattia

Removing noise from images is a challenging and fundamental problem in the field of computer vision. Images captured by modern cameras are inevitably degraded by noise which limits the accuracy of any quantitative measurements on those…

计算机视觉与模式识别 · 计算机科学 2023-07-13 Nikhil Verma , Deepkamal Kaur , Lydia Chau

Deep neural networks provide state-of-the-art performance for image denoising, where the goal is to recover a near noise-free image from a noisy observation. The underlying principle is that neural networks trained on large datasets have…

信息论 · 计算机科学 2019-04-09 Reinhard Heckel , Wen Huang , Paul Hand , Vladislav Voroninski

A Generative Adversarial Network (GAN) with generator $G$ trained to model the prior of images has been shown to perform better than sparsity-based regularizers in ill-posed inverse problems. Here, we propose a new method of deploying a…

机器学习 · 计算机科学 2019-10-25 Ankit Raj , Yuqi Li , Yoram Bresler

Dense depth estimation and 3D reconstruction of a surgical scene are crucial steps in computer assisted surgery. Recent work has shown that depth estimation from a stereo images pair could be solved with convolutional neural networks.…

图像与视频处理 · 电气工程与系统科学 2021-07-24 Baoru Huang , Jianqing Zheng , Anh Nguyen , David Tuch , Kunal Vyas , Stamatia Giannarou , Daniel S. Elson

Currently generative adversarial networks (GANs) are rarely applied to medical images of large sizes, especially 3D volumes, due to their large computational demand. We propose a novel multi-scale patch-based GAN approach to generate large…

图像与视频处理 · 电气工程与系统科学 2019-07-09 Hristina Uzunova , Jan Ehrhardt , Fabian Jacob , Alex Frydrychowicz , Heinz Handels

Denoising extreme low light images is a challenging task due to the high noise level. When the illumination is low, digital cameras increase the ISO (electronic gain) to amplify the brightness of captured data. However, this in turn…

图像与视频处理 · 电气工程与系统科学 2019-09-13 Hao Guan , Liu Liu , Sean Moran , Fenglong Song , Gregory Slabaugh

Existing unpaired low-light image enhancement approaches prefer to employ the two-way GAN framework, in which two CNN generators are deployed for enhancement and degradation separately. However, such data-driven models ignore the inherent…

计算机视觉与模式识别 · 计算机科学 2021-12-28 Jize Zhang , Haolin Wang , Xiaohe Wu , Wangmeng Zuo

In biomedical image analysis, the applicability of deep learning methods is directly impacted by the quantity of image data available. This is due to deep learning models requiring large image datasets to provide high-level performance.…

机器学习 · 计算机科学 2023-08-14 Muhammad Muneeb Saad , Ruairi O'Reilly , Mubashir Husain Rehmani

Deep neural networks (DNN) are commonly used to denoise and sharpen X-ray computed tomography (CT) images with the goal of reducing patient X-ray dosage while maintaining reconstruction quality. However, naive application of DNN-based…

图像与视频处理 · 电气工程与系统科学 2023-12-22 Madhuri Nagare , Gregery T. Buzzard , Charles A. Bouman

This paper addresses the problem of remote sensing image pan-sharpening from the perspective of generative adversarial learning. We propose a novel deep neural network based method named PSGAN. To the best of our knowledge, this is one of…

计算机视觉与模式识别 · 计算机科学 2020-12-22 Qingjie Liu , Huanyu Zhou , Qizhi Xu , Xiangyu Liu , Yunhong Wang

Ultrasound (US) imaging is widely used for anatomical structure inspection in clinical diagnosis. The training of new sonographers and deep learning based algorithms for US image analysis usually requires a large amount of data. However,…

图像与视频处理 · 电气工程与系统科学 2022-05-26 Jiamin Liang , Xin Yang , Yuhao Huang , Haoming Li , Shuangchi He , Xindi Hu , Zejian Chen , Wufeng Xue , Jun Cheng , Dong Ni

Current speech enhancement techniques operate on the spectral domain and/or exploit some higher-level feature. The majority of them tackle a limited number of noise conditions and rely on first-order statistics. To circumvent these issues,…

机器学习 · 计算机科学 2017-06-12 Santiago Pascual , Antonio Bonafonte , Joan Serrà

Realistic hyperspectral image (HSI) super-resolution (SR) techniques aim to generate a high-resolution (HR) HSI with higher spectral and spatial fidelity from its low-resolution (LR) counterpart. The generative adversarial network (GAN) has…

图像与视频处理 · 电气工程与系统科学 2022-10-05 Yue Shi , Liangxiu Han , Lianghao Han , Sheng Chang , Tongle Hu , Darren Dancey

Deep neural networks for image quality enhancement typically need large quantities of highly-curated training data comprising pairs of low-quality images and their corresponding high-quality images. While high-quality image acquisition is…

图像与视频处理 · 电气工程与系统科学 2021-06-30 Uddeshya Upadhyay , Suyash Awate

As a means to extract biomarkers from medical imaging, radiomics has attracted increased attention from researchers. However, reproducibility and performance of radiomics in low dose CT scans are still poor, mostly due to noise. Deep…

定量方法 · 定量生物学 2021-09-17 Junhua Chen , Leonard Wee , Andre Dekker , Inigo Bermejo