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Image/video denoising in low-light scenes is an extremely challenging problem due to limited photon count and high noise. In this paper, we propose a novel approach with contrastive learning to address this issue. Inspired by the success of…

计算机视觉与模式识别 · 计算机科学 2023-05-08 Taoyong Cui , Yuhan Dong

Decreased visibility, intensive noise, and biased color are the common problems existing in low-light images. These visual disturbances further reduce the performance of high-level vision tasks, such as object detection, and tracking. To…

计算机视觉与模式识别 · 计算机科学 2023-06-30 Hao Chen , Zhi Jin

In this study, we develop a physics-informed deep learning-based method to synthesize multiple brain magnetic resonance imaging (MRI) contrasts from a single five-minute acquisition and investigate its ability to generalize to arbitrary…

Deep learning (DL) methods have been extensively applied to various image recovery problems, including magnetic resonance imaging (MRI) and computed tomography (CT) reconstruction. Beyond supervised models, other approaches have been…

图像与视频处理 · 电气工程与系统科学 2024-12-24 Shijun Liang , Ismail Alkhouri , Qing Qu , Rongrong Wang , Saiprasad Ravishankar

Discriminative Dictionary Learning (DL) methods have been widely advocated for image classification problems. To further sharpen their discriminative capabilities, most state-of-the-art DL methods have additional constraints included in the…

机器学习 · 计算机科学 2019-03-08 Wen Tang , Ashkan Panahi , Hamid Krim , Liyi Dai

Anatomical landmark detection in medical images is essential for various clinical and research applications, including disease diagnosis and surgical planning. However, manual landmark annotation is time-consuming and requires significant…

图像与视频处理 · 电气工程与系统科学 2025-07-22 Soorena Salari , Arash Harirpoush , Hassan Rivaz , Yiming Xiao

Image restoration is a low-level vision task, most CNN methods are designed as a black box, lacking transparency and internal aesthetics. Although some methods combining traditional optimization algorithms with DNNs have been proposed, they…

计算机视觉与模式识别 · 计算机科学 2025-08-27 Xiao Feng Zhang , Chao Chen Gu , Shan Ying Zhu

We describe a method for unpaired realistic depth synthesis that learns diverse variations from the real-world depth scans and ensures geometric consistency between the synthetic and synthesized depth. The synthesized realistic depth can…

计算机视觉与模式识别 · 计算机科学 2023-08-16 Yuefan Shen , Yanchao Yang , Youyi Zheng , C. Karen Liu , Leonidas Guibas

In the presence of large sets of labeled data, Deep Learning (DL) has accomplished extraordinary triumphs in the avenue of computer vision, particularly in object classification and recognition tasks. However, DL cannot always perform well…

计算机视觉与模式识别 · 计算机科学 2019-01-03 Mohammad Mahfujur Rahman , Clinton Fookes , Mahsa Baktashmotlagh , Sridha Sridharan

Global Navigation Satellite System (GNSS) signals are fundamental in applications across navigation, transportation, and industrial networks. However, their extremely low received power makes them highly vulnerable to radio-frequency…

信号处理 · 电气工程与系统科学 2025-12-09 Zawar Hussain , Arslan Majal , Aamir Hussain Chughtai , Talha Nadeem

Leveraging the diversity and quantity of data provided by various graph-structured data augmentations while preserving intrinsic semantic information is challenging. Additionally, successive layers in graph neural network (GNN) tend to…

机器学习 · 计算机科学 2026-03-19 Jie Chen , Hua Mao , Chuanbin Liu , Zhu Wang , Xi Peng

Low-dose CT denoising is a challenging task that has been studied by many researchers. Some studies have used deep neural networks to improve the quality of low-dose CT images and achieved fruitful results. In this paper, we propose a deep…

图像与视频处理 · 电气工程与系统科学 2019-02-28 Maryam Gholizadeh-Ansari , Javad Alirezaie , Paul Babyn

Low-dose CT imaging requires reconstruction from noisy indirect measurements which can be defined as an ill-posed linear inverse problem. In addition to conventional FBP method in CT imaging, recent compressed sensing based methods exploit…

图像与视频处理 · 电气工程与系统科学 2025-11-14 Mehmet Ozan Unal , Metin Ertas , Isa Yildirim

The recently rising markup-to-image generation poses greater challenges as compared to natural image generation, due to its low tolerance for errors as well as the complex sequence and context correlations between markup and rendered image.…

计算机视觉与模式识别 · 计算机科学 2023-08-03 Guojin Zhong , Jin Yuan , Pan Wang , Kailun Yang , Weili Guan , Zhiyong Li

Low-dose CT (LDCT) imaging is widely used to reduce radiation exposure to mitigate high exposure side effects, but often suffers from noise and artifacts that affect diagnostic accuracy. To tackle this issue, deep learning models have been…

计算机视觉与模式识别 · 计算机科学 2025-11-04 Taifour Yousra , Beghdadi Azeddine , Marie Luong , Zuheng Ming

Recent accelerated MRI reconstruction models have used Deep Neural Networks (DNNs) to reconstruct relatively high-quality images from highly undersampled k-space data, enabling much faster MRI scanning. However, these techniques sometimes…

图像与视频处理 · 电气工程与系统科学 2021-04-12 Itzik Malkiel , Sangtae Ahn , Valentina Taviani , Anne Menini , Lior Wolf , Christopher J. Hardy

Noise and artifacts are intrinsic to low dose CT (LDCT) data acquisition, and will significantly affect the imaging performance. Perfect noise removal and image restoration is intractable in the context of LDCT due to the statistical and…

医学物理 · 物理学 2019-07-24 Wenchao Du , Hu Chen , Peixi Liao , Hongyu Yang , Ge Wang , Yi Zhang

Model-based optimization methods and discriminative learning methods have been the two dominant strategies for solving various inverse problems in low-level vision. Typically, those two kinds of methods have their respective merits and…

计算机视觉与模式识别 · 计算机科学 2017-04-12 Kai Zhang , Wangmeng Zuo , Shuhang Gu , Lei Zhang

Purpose A Magnetic Resonance Imaging (MRI) exam typically consists of several sequences that yield different image contrasts. Each sequence is parameterized through multiple acquisition parameters that influence image contrast,…

图像与视频处理 · 电气工程与系统科学 2022-02-23 Jonas Denck , Jens Guehring , Andreas Maier , Eva Rothgang

Recent years have witnessed a growing academic and industrial interest in deep learning (DL) for medical imaging. To perform well, DL models require very large labeled datasets. However, most medical imaging datasets are small, with a…

计算机视觉与模式识别 · 计算机科学 2025-03-04 Minh H. Vu , Lorenzo Tronchin , Tufve Nyholm , Tommy Löfstedt