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The success of deep denoisers on real-world color photographs usually relies on the modeling of sensor noise and in-camera signal processing (ISP) pipeline. Performance drop will inevitably happen when the sensor and ISP pipeline of test…

计算机视觉与模式识别 · 计算机科学 2021-03-19 Yue Cao , Xiaohe Wu , Shuran Qi , Xiao Liu , Zhongqin Wu , Wangmeng Zuo

Deep learning is a very promising technique for low-dose computed tomography (LDCT) image denoising. However, traditional deep learning methods require paired noisy and clean datasets, which are often difficult to obtain. This paper…

图像与视频处理 · 电气工程与系统科学 2023-08-15 Yuting Zhu , Qiang He , Yudong Yao , Yueyang Teng

Image denoising is an important problem in low-level vision and serves as a critical module for many image recovery tasks. Anisotropic diffusion is a wide family of image denoising approaches with promising performance. However, traditional…

计算机视觉与模式识别 · 计算机科学 2026-01-01 Xinran Qin , Yuhui Quan , Ruotao Xu , Hui Ji

Medical image denoising is essential for improving the reliability of clinical diagnosis and guiding subsequent image-based tasks. In this paper, we propose a multi-scale approach that integrates anisotropic Gaussian filtering with…

图像与视频处理 · 电气工程与系统科学 2025-03-12 Arghya Pal , Sailaja Rajanala , CheeMing Ting , Raphael Phan

Positron Emission Tomography (PET) imaging is a vital tool in medical diagnostics, offering detailed insights into molecular processes within the human body. However, PET images often suffer from complicated noise, which can obscure…

计算机视觉与模式识别 · 计算机科学 2026-01-30 Xuehua Ye , Hongxu Yang , Adam J. Schwarz

Dual-energy computed tomography (DECT) has been widely used in many applications that need material decomposition. Image-domain methods directly decompose material images from high- and low-energy attenuation images, and thus, are…

图像与视频处理 · 电气工程与系统科学 2022-01-25 Zhipeng Li , Yong Long , Il Yong Chun

Image denoising is a fundamental problem in image processing whose primary objective is to remove the noise while preserving the original image structure. In this work, we proposed a new architecture for image denoising. We have used…

图像与视频处理 · 电气工程与系统科学 2019-03-25 Sutanu Bera , Avisek Lahiri , Prabir Kumar Biswas

Deep neural networks have been proved efficient for medical image denoising. Current training methods require both noisy and clean images. However, clean images cannot be acquired for many practical medical applications due to naturally…

图像与视频处理 · 电气工程与系统科学 2019-06-11 Dufan Wu , Kuang Gong , Kyungsang Kim , Quanzheng Li

Medical image acquisition is often intervented by unwanted noise that corrupts the information content. This paper introduces an unsupervised medical image denoising technique that learns noise characteristics from the available images and…

图像与视频处理 · 电气工程与系统科学 2021-03-12 Swati Rai , Jignesh S. Bhatt , S. K. Patra

This paper presents a novel method for restoring digital videos via a Deep Plug-and-Play (PnP) approach. Under a Bayesian formalism, the method consists in using a deep convolutional denoising network in place of the proximal operator of…

图像与视频处理 · 电气工程与系统科学 2022-09-16 Antoine Monod , Julie Delon , Matias Tassano , Andrés Almansa

The "deep image prior" proposed by Ulyanov et al. is an intriguing property of neural nets: a convolutional encoder-decoder network can be used as a prior for natural images. The network architecture implicitly introduces a bias; If we…

计算机视觉与模式识别 · 计算机科学 2019-12-20 Prithvijit Chakrabarty , Subhransu Maji

Zero-shot image restoration (IR) methods based on pretrained diffusion models have recently achieved significant success. These methods typically require at least a parametric form of the degradation model. However, in real-world scenarios,…

计算机视觉与模式识别 · 计算机科学 2025-03-28 Hamadi Chihaoui , Paolo Favaro

We consider the image transmission problem over a noisy wireless channel via deep learning-based joint source-channel coding (DeepJSCC) along with a denoising diffusion probabilistic model (DDPM) at the receiver. Specifically, we are…

图像与视频处理 · 电气工程与系统科学 2024-09-23 Selim F. Yilmaz , Xueyan Niu , Bo Bai , Wei Han , Lei Deng , Deniz Gunduz

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

Electrocardiogram (ECG) signals are frequently corrupted by noise, such as baseline wander (BW), muscle artifacts (MA), and electrode motion (EM), which significantly degrade their diagnostic utility. To address this issue, we propose…

信号处理 · 电气工程与系统科学 2025-05-12 Sainan xiao , Wangdong Yang , Buwen Cao , Jintao Wu

While convolutional neural networks (CNNs) and vision transformers (ViTs) have advanced medical image segmentation, they face inherent limitations such as local receptive fields in CNNs and high computational complexity in ViTs. This paper…

图像与视频处理 · 电气工程与系统科学 2025-04-02 Pooya Ashtari , Shahryar Noei , Fateme Nateghi Haredasht , Jonathan H. Chen , Giuseppe Jurman , Aleksandra Pizurica , Sabine Van Huffel

Image restoration has seen great progress in the last years thanks to the advances in deep neural networks. Most of these existing techniques are trained using full supervision with suitable image pairs to tackle a specific degradation.…

图像与视频处理 · 电气工程与系统科学 2020-09-11 Leonhard Helminger , Michael Bernasconi , Abdelaziz Djelouah , Markus Gross , Christopher Schroers

We propose to learn a fully-convolutional network model that consists of a Chain of Identity Mapping Modules and residual on the residual architecture for image denoising. Our network structure possesses three distinctive features that are…

计算机视觉与模式识别 · 计算机科学 2020-04-29 Saeed Anwar , Cong Phuoc Huynh , Fatih Porikli

Two-dimensional (2D) fast spin echo (FSE) techniques play a central role in the clinical magnetic resonance imaging (MRI) of knee joints. Moreover, three-dimensional (3D) FSE provides high-isotropic-resolution magnetic resonance (MR) images…

图像与视频处理 · 电气工程与系统科学 2022-12-15 Shutian Zhao , Donal G. Cahill , Siyue Li , Fan Xiao , Thierry Blu , James F Griffith , Weitian Chen

With the advent of recent advances in unsupervised learning, efficient training of a deep network for image denoising without pairs of noisy and clean images has become feasible. However, most current unsupervised denoising methods are…

图像与视频处理 · 电气工程与系统科学 2020-12-08 Kanggeun Lee , Won-Ki Jeong