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Recovering images from undersampled linear measurements typically leads to an ill-posed linear inverse problem, that asks for proper statistical priors. Building effective priors is however challenged by the low train and test overhead…

人工智能 · 计算机科学 2017-11-29 Morteza Mardani , Hatef Monajemi , Vardan Papyan , Shreyas Vasanawala , David Donoho , John Pauly

We introduce a new generative model where samples are produced via Langevin dynamics using gradients of the data distribution estimated with score matching. Because gradients can be ill-defined and hard to estimate when the data resides on…

机器学习 · 计算机科学 2020-10-13 Yang Song , Stefano Ermon

Recently, deep learning methods have gained remarkable achievements in the field of image restoration for remote sensing (RS). However, most existing RS image restoration methods focus mainly on conventional first-order degradation models,…

计算机视觉与模式识别 · 计算机科学 2025-07-18 Yujie Feng , Yin Yang , Xiaohong Fan , Zhengpeng Zhang , Lijing Bu , Jianping Zhang

With the rising demands for robust structural health monitoring procedures for aerospace structures, the scope of intelligent algorithms and learning techniques is expanding. Supervised algorithms have shown promising results in the field…

信号处理 · 电气工程与系统科学 2023-08-11 Mahindra Rautela , Amin Maghareh , Shirley Dyke , S. Gopalakrishnan

Existing image restoration methods mostly leverage the posterior distribution of natural images. However, they often assume known degradation and also require supervised training, which restricts their adaptation to complex real…

计算机视觉与模式识别 · 计算机科学 2023-04-05 Ben Fei , Zhaoyang Lyu , Liang Pan , Junzhe Zhang , Weidong Yang , Tianyue Luo , Bo Zhang , Bo Dai

Deep learning (DL) based hyperspectral images (HSIs) denoising approaches directly learn the nonlinear mapping between observed noisy images and underlying clean images. They normally do not consider the physical characteristics of HSIs,…

图像与视频处理 · 电气工程与系统科学 2021-11-16 Fengchao Xiong , Shuyin Tao , Jun Zhou , Jianfeng Lu , Jiantao Zhou , Yuntao Qian

Magnetic resonance imaging (MRI) is known to have reduced signal-to-noise ratios (SNR) at lower field strengths, leading to signal degradation when producing a low-field MRI image from a high-field one. Therefore, reconstructing a…

图像与视频处理 · 电气工程与系统科学 2023-05-05 Zhuo-Xu Cui , Congcong Liu , Chentao Cao , Yuanyuan Liu , Jing Cheng , Qingyong Zhu , Yanjie Zhu , Haifeng Wang , Dong Liang

Score Distillation Sampling (SDS) is a recent but already widely popular method that relies on an image diffusion model to control optimization problems using text prompts. In this paper, we conduct an in-depth analysis of the SDS loss…

计算机视觉与模式识别 · 计算机科学 2024-07-08 Thiemo Alldieck , Nikos Kolotouros , Cristian Sminchisescu

Deep convolutional networks have become a popular tool for image generation and restoration. Generally, their excellent performance is imputed to their ability to learn realistic image priors from a large number of example images. In this…

计算机视觉与模式识别 · 计算机科学 2020-05-19 Dmitry Ulyanov , Andrea Vedaldi , Victor Lempitsky

Score-based generative models (SGMs) are a recent breakthrough in generating fake images. SGMs are known to surpass other generative models, e.g., generative adversarial networks (GANs) and variational autoencoders (VAEs). Being inspired by…

机器学习 · 计算机科学 2022-06-20 Jayoung Kim , Chaejeong Lee , Yehjin Shin , Sewon Park , Minjung Kim , Noseong Park , Jihoon Cho

Classic image-restoration algorithms use a variety of priors, either implicitly or explicitly. Their priors are hand-designed and their corresponding weights are heuristically assigned. Hence, deep learning methods often produce superior…

计算机视觉与模式识别 · 计算机科学 2022-01-11 Majed El Helou , Sabine Süsstrunk

Purpose: We present SCAMPI (Sparsity Constrained Application of deep Magnetic resonance Priors for Image reconstruction), an untrained deep Neural Network for MRI reconstruction without previous training on datasets. It expands the Deep…

医学物理 · 物理学 2024-05-21 Thomas M. Siedler , Peter M. Jakob , Volker Herold

Deep learning techniques have led to state-of-the-art image super resolution with natural images. Normally, pairs of high-resolution and low-resolution images are used to train the deep learning models. These techniques have also been…

图像与视频处理 · 电气工程与系统科学 2022-10-14 Yutaro Iwamoto , Kyohei Takeda , Yinhao Li , Akihiko Shiino , Yen-Wei Chen

The rapid progress of generative models such as GANs and diffusion models has led to the widespread proliferation of AI-generated images, raising concerns about misinformation, privacy violations, and trust erosion in digital media.…

计算机视觉与模式识别 · 计算机科学 2026-05-18 Jiazhen Yan , Ziqiang Li , Fan Wang , Boyu Wang , Ziwen He , Zhangjie Fu

Traditional model-based image reconstruction (MBIR) methods combine forward and noise models with simple object priors. Recent application of deep learning methods for image reconstruction provides a successful data-driven approach to…

图像与视频处理 · 电气工程与系统科学 2023-11-22 Ling Chen , Zhishen Huang , Yong Long , Saiprasad Ravishankar

Physics-driven deep learning (PD-DL) models have proven to be a powerful approach for improved reconstruction of rapid MRI scans. In order to train these models in scenarios where fully-sampled reference data is unavailable, self-supervised…

图像与视频处理 · 电气工程与系统科学 2025-09-08 Yaşar Utku Alçalar , Mehmet Akçakaya

High resolution Magnetic Resonance (MR) images are desired for accurate diagnostics. In practice, image resolution is restricted by factors like hardware and processing constraints. Recently, deep learning methods have been shown to produce…

图像与视频处理 · 电气工程与系统科学 2020-01-08 Venkateswararao Cherukuri , Tiantong Guo , Steve. J. Schiff , Vishal Monga

Magnetic resonance imaging (MRI) is a powerful noninvasive diagnostic imaging tool that provides unparalleled soft tissue contrast and anatomical detail. Noise contamination, especially in accelerated and/or low-field acquisitions, can…

图像与视频处理 · 电气工程与系统科学 2025-05-12 Jiachen Tu , Yaokun Shi , Fan Lam

Deep learning-based methods have become the de facto standard for industrial defect detection. However, their data-hungry nature and inherent "black-box" characteristics often lead to performance bottlenecks and limited trustworthiness in…

计算机视觉与模式识别 · 计算机科学 2026-05-19 Hang-Cheng Dong , Guodong Liu , Dong Ye , Bingguo Liu

Saliency methods have been widely used to highlight important input features in model predictions. Most existing methods use backpropagation on a modified gradient function to generate saliency maps. Thus, noisy gradients can result in…

计算机视觉与模式识别 · 计算机科学 2021-11-30 Aya Abdelsalam Ismail , Héctor Corrada Bravo , Soheil Feizi