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Hyperspectral image (HSI) denoising is a crucial preprocessing step for subsequent tasks. The clean HSI usually reside in a low-dimensional subspace, which can be captured by low-rank and sparse representation, known as the physical prior…

计算机视觉与模式识别 · 计算机科学 2025-09-03 Jin Ye , Fengchao Xiong , Jun Zhou , Yuntao Qian

Convolutional Neural Network (CNN) has been widely used in unstructured datasets, one of which is image denoising. Image denoising is a noisy image reconstruction process that aims to reduce additional noise that occurs from the noisy image…

计算机视觉与模式识别 · 计算机科学 2025-02-14 Bintang Pradana Erlangga Putra , Heri Prasetyo , Esti Suryani

While the depth of convolutional neural networks has attracted substantial attention in the deep learning research, the width of these networks has recently received greater interest. The width of networks, defined as the size of the…

计算机视觉与模式识别 · 计算机科学 2024-06-25 Peng Liu , Xiaoxiao Zhou , Yangjunyi Li , El Basha Mohammad D , Ruogu Fang

Multiple objective assessment of image-quality-based studies have reported that several deep-learning-based denoising methods show limited performance on signal-detection tasks. Our goal was to investigate the reasons for this limited…

医学物理 · 物理学 2022-03-04 Zitong Yu , Md Ashequr Rahman , Abhinav K. Jha

In coronary CT angiography, a series of CT images are taken at different levels of radiation dose during the examination. Although this reduces the total radiation dose, the image quality during the low-dose phases is significantly…

计算机视觉与模式识别 · 计算机科学 2019-03-06 Eunhee Kang , Hyun Jung Koo , Dong Hyun Yang , Joon Bum Seo , Jong Chul Ye

Noise is ubiquitous during image acquisition. Sufficient denoising is often an important first step for image processing. In recent decades, deep neural networks (DNNs) have been widely used for image denoising. Most DNN-based image…

计算机视觉与模式识别 · 计算机科学 2024-08-02 Chenyin Gao , Shu Yang , Anru R. Zhang

Denoising of clinical CT images is an active area for deep learning research. Current clinically approved methods use iterative reconstruction methods to reduce the noise in CT images. Iterative reconstruction techniques require multiple…

图像与视频处理 · 电气工程与系统科学 2020-07-10 Mayank Patwari , Ralf Gutjahr , Rainer Raupach , Andreas Maier

In contrast to non-medical image denoising, where enhancing image clarity is the primary goal, medical image denoising warrants preservation of crucial features without introduction of new artifacts. However, many denoising methods that…

图像与视频处理 · 电气工程与系统科学 2024-12-02 Md. Touhidul Islam , Md. Abtahi M. Chowdhury , Sumaiya Salekin , Aye T. Maung , Akil A. Taki , Hafiz Imtiaz

Computed tomography is widely used as an imaging tool to visualize three-dimensional structures with expressive bone-soft tissue contrast. However, CT resolution and radiation dose are tightly entangled, highlighting the importance of…

Image restoration is a low-level vision task which is to restore degraded images to noise-free images. With the success of deep neural networks, the convolutional neural networks surpass the traditional restoration methods and become the…

图像与视频处理 · 电气工程与系统科学 2023-01-18 Chi-Mao Fan , Tsung-Jung Liu , Kuan-Hsien Liu

In this paper, we propose a state-of-the-art video denoising algorithm based on a convolutional neural network architecture. Until recently, video denoising with neural networks had been a largely under explored domain, and existing methods…

计算机视觉与模式识别 · 计算机科学 2020-05-01 Matias Tassano , Julie Delon , Thomas Veit

Digital image devices have been widely applied in many fields, including scientific imaging, recognition of individuals, and remote sensing. As the application of these imaging technologies to autonomous driving and measurement, image noise…

计算机视觉与模式识别 · 计算机科学 2024-04-02 Yang Shao , Toshie Yaguchi , Toshiaki Tanigaki

Given the potential X-ray radiation risk to the patient, low-dose CT has attracted a considerable interest in the medical imaging field. The current main stream low-dose CT methods include vendor-specific sinogram domain filtration and…

医学物理 · 物理学 2017-12-12 Hu Chen , Yi Zhang , Mannudeep K. Kalra , Feng Lin , Yang Chen , Peixi Liao , Jiliu Zhou , Ge Wang

The unrolling method has been investigated for learning variational models in X-ray computed tomography. However, it has been observed that directly unrolling the regularization model through gradient descent does not produce satisfactory…

图像与视频处理 · 电气工程与系统科学 2024-04-19 Yijie Yang , Qifeng Gao , Yuping Duan

Computed tomography (CT) has been used worldwide as a non-invasive test to assist in diagnosis. However, the ionizing nature of X-ray exposure raises concerns about potential health risks such as cancer. The desire for lower radiation doses…

图像与视频处理 · 电气工程与系统科学 2024-07-01 Yucheng Lu , Zhixin Xu , Moon Hyung Choi , Jimin Kim , Seung-Won Jung

In real-world scenarios, images captured often suffer from blurring, noise, and other forms of image degradation, and due to sensor limitations, people usually can only obtain low dynamic range images. To achieve high-quality images,…

计算机视觉与模式识别 · 计算机科学 2024-04-23 Kangzhen Yang , Tao Hu , Kexin Dai , Genggeng Chen , Yu Cao , Wei Dong , Peng Wu , Yanning Zhang , Qingsen Yan

Deep neural networks have been widely used in image denoising during the past few years. Even though they achieve great success on this problem, they are computationally inefficient which makes them inappropriate to be implemented in mobile…

图像与视频处理 · 电气工程与系统科学 2021-08-05 Lu Xu , Jiawei Zhang , Xuanye Cheng , Feng Zhang , Xing Wei , Jimmy Ren

Recently, deep learning-based image denoising methods have achieved promising performance on test data with the same distribution as training set, where various denoising models based on synthetic or collected real-world training data have…

计算机视觉与模式识别 · 计算机科学 2022-06-09 Pengju Liu , Hongzhi Zhang , Jinghui Wang , Yuzhi Wang , Dongwei Ren , Wangmeng Zuo

Recent studies on learning-based image denoising have achieved promising performance on various noise reduction tasks. Most of these deep denoisers are trained either under the supervision of clean references, or unsupervised on synthetic…

图像与视频处理 · 电气工程与系统科学 2021-03-30 Rui Zhao , Daniel P. K. Lun , Kin-Man Lam

High-Resolution Transmission Electron Microscopy (HRTEM) enables atomic-scale observation of nucleation dynamics, which boosts the studies of advanced solid materials. Nonetheless, due to the millisecond-scale rapid change of nucleation, it…

计算机视觉与模式识别 · 计算机科学 2026-03-20 Hesong Li , Ziqi Wu , Ruiwen Shao , Ying Fu