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Investigation of image reconstruction from data collected over a limited angular range in X-ray CT remains a topic of active research because it may yield insight into the development of imaging workflow of practical significance. This…

医学物理 · 物理学 2021-03-02 Zheng Zhang , Buxin Chen , Dan Xia , Emil Y. Sidky , Xiaochuan Pan

Guided image restoration (GIR), such as guided depth map super-resolution and pan-sharpening, aims to enhance a target image using guidance information from another image of the same scene. Currently, joint image filtering-inspired deep…

计算机视觉与模式识别 · 计算机科学 2023-12-15 Xinyi Liu , Qian Zhao , Jie Liang , Hui Zeng , Deyu Meng , Lei Zhang

Deep learning-based image denoising techniques often struggle with poor generalization performance to out-of-distribution real-world noise. To tackle this challenge, we propose a novel noise translation framework that performs denoising on…

图像与视频处理 · 电气工程与系统科学 2026-04-03 Inju Ha , Donghun Ryou , Seonguk Seo , Bohyung Han

The joint problem of reconstruction / feature extraction is a challenging task in image processing. It consists in performing, in a joint manner, the restoration of an image and the extraction of its features. In this work, we firstly…

计算机视觉与模式识别 · 计算机科学 2024-03-06 Emilie Chouzenoux , Marie-Caroline Corbineau , Jean-Christophe Pesquet , Gabriele Scrivanti

In this paper, the traditional model based variational method and learning based algorithms are naturally integrated to address mixed noise removal problem. To be different from single type noise (e.g. Gaussian) removal, it is a challenge…

计算机视觉与模式识别 · 计算机科学 2018-05-22 Faqiang Wang , Haiyang Huang , Jun Liu

We introduce a method to generate temporally coherent human animation from a single image, a video, or a random noise. This problem has been formulated as modeling of an auto-regressive generation, i.e., to regress past frames to decode…

计算机视觉与模式识别 · 计算机科学 2024-03-25 Tserendorj Adiya , Jae Shin Yoon , Jungeun Lee , Sanghun Kim , Hwasup Lim

In this paper, a new regularization term is proposed to solve mathematical image problems. By using difference operators in the four directions; horizontal, vertical and two diagonal directions, an estimation of derivative amplitude is…

数值分析 · 数学 2022-09-14 Alireza Hosseini

The core of many approaches for the resolution of variational inverse problems arising in signal and image processing consists of promoting the sought solution to have a sparse representation in a well-suited space. A crucial task in this…

数值分析 · 数学 2022-09-07 Gabriele Scrivanti , Emilie Chouzenoux , Jean-Christophe Pesquet

We consider the problem of image denoising in the presence of noise whose statistical properties are a combination of two different distributions. We focus on noise distributions that are frequently considered in applications, in particular…

最优化与控制 · 数学 2016-11-22 Luca Calatroni , Juan Carlos De Los Reyes , Carola-Bibiane Schönlieb

In this paper, we study the problem of a batch of linearly correlated image alignment, where the observed images are deformed by some unknown domain transformations, and corrupted by additive Gaussian noise and sparse noise simultaneously.…

计算机视觉与模式识别 · 计算机科学 2022-12-14 Sijia Xia , Duo Qiu , Xiongjun Zhang

We study the problem of deconvolution for light-sheet microscopy, where the data is corrupted by spatially varying blur and a combination of Poisson and Gaussian noise. The spatial variation of the point spread function (PSF) of a…

Text-to-image retrieval is a fundamental task in multimedia processing, aiming to retrieve semantically relevant cross-modal content. Traditional studies have typically approached this task as a discriminative problem, matching the text and…

多媒体 · 计算机科学 2024-07-25 Yongqi Li , Hongru Cai , Wenjie Wang , Leigang Qu , Yinwei Wei , Wenjie Li , Liqiang Nie , Tat-Seng Chua

In this paper, we investigate tensor recovery problems within the tensor singular value decomposition (t-SVD) framework. We propose the partial sum of the tubal nuclear norm (PSTNN) of a tensor. The PSTNN is a surrogate of the tensor tubal…

数值分析 · 计算机科学 2020-01-24 Tai-Xiang Jiang , Ting-Zhu Huang , Xi-Le Zhao , Liang-Jian Deng

Travel-time tomography forces a trade-off between mesh resolution and stability in which the regularizer choice dominates what can be recovered. We introduce MIMIR, a differentiable framework that represents the 2D velocity field as a…

地球物理 · 物理学 2026-05-12 Isao Kurosawa

In this paper we are particularly interested in the image inpainting problem using directional complex tight wavelet frames. Under the assumption that frame coefficients of images are sparse, several iterative thresholding algorithms for…

信息论 · 计算机科学 2014-07-14 Yi Shen , Bin Han , Elena Braverman

Deep Neural Networks (DNNs)-based semantic segmentation models trained on a source domain often struggle to generalize to unseen target domains, i.e., a domain gap problem. Texture often contributes to the domain gap, making DNNs vulnerable…

计算机视觉与模式识别 · 计算机科学 2023-08-21 Sunghwan Kim , Dae-hwan Kim , Hoseong Kim

Image denoising is a classic restoration problem. Yet, current deep learning methods are subject to the problems of generalization and interpretability. To mitigate these problems, in this project, we present a framework that is capable of…

图像与视频处理 · 电气工程与系统科学 2021-06-18 Haley Owsianko , Florian Cassayre , Qiyuan Liang

Fine-grained image retrieval (FGIR) is to learn visual representations that distinguish visually similar objects while maintaining generalization. Existing methods propose to generate discriminative features, but rarely consider the…

计算机视觉与模式识别 · 计算机科学 2024-04-25 Xin Jiang , Hao Tang , Rui Yan , Jinhui Tang , Zechao Li

The curvature regularities are well-known for providing strong priors in the continuity of edges, which have been applied to a wide range of applications in image processing and computer vision. However, these models are usually non-convex,…

数值分析 · 数学 2019-12-03 Qiuxiang Zhong , Ke Yin , Yuping Duan

Image segmentation is a core task in image processing, yet many methods degrade when images are heavily corrupted by noise and exhibit intensity inhomogeneity. Within the iterative-convolution thresholding method (ICTM) framework, we…

计算机视觉与模式识别 · 计算机科学 2025-11-13 Xinyu Wang , Wenjun Yao , Fanghui Song , Zhichang Guo