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Diffuse Optical Tomography (DOT) is an emerging technology in medical imaging which employs light in the NIR spectrum to estimate the distribution of optical coefficients in biological tissues for diagnostic and monitoring purposes. DOT…

数值分析 · 数学 2022-05-27 Alessandro Benfenati , Giuseppe Bisazza , Paola Causin

We propose a new variational model for joint image reconstruction and motion estimation in spatiotemporal imaging, which is investigated along a general framework that we present with shape theory. This model consists of two components, one…

数值分析 · 数学 2019-11-06 Chong Chen , Barbara Gris , Ozan Öktem

Domain adaptation methods aim to bridge the gap between datasets by enabling knowledge transfer across domains, reducing the need for additional expert annotations. However, many approaches struggle with reliability in the target domain, an…

图像与视频处理 · 电气工程与系统科学 2026-05-14 Arnaud Judge , Nicolas Duchateau , Thierry Judge , Roman A. Sandler , Joseph Z. Sokol , Christian Desrosiers , Olivier Bernard , Pierre-Marc Jodoin

In this work, we investigate the application of deep learning methods for computed tomography in the context of having a low-data regime. As motivation, we review some of the existing approaches and obtain quantitative results after…

图像与视频处理 · 电气工程与系统科学 2021-04-20 Daniel Otero Baguer , Johannes Leuschner , Maximilian Schmidt

Time-varying graph signal recovery has been widely used in many applications, including climate change, environmental hazard monitoring, and epidemic studies. It is crucial to choose appropriate regularizations to describe the…

信号处理 · 电气工程与系统科学 2024-05-17 Weihong Guo , Yifei Lou , Jing Qin , Ming Yan

Interrupted X-ray computed tomography (X-CT) has been the common way to observe the deformation of materials during an experiment. While this approach is effective for quasi-static experiments, it has never been possible to reconstruct a…

仪器与探测器 · 物理学 2024-10-29 Ivan Grega , William F. Whitney , Vikram S. Deshpande

We propose a new method to reconstruct data acquired in a local tomography setup. This method uses an initial reconstruction and refines it by correcting the low frequency artifacts known as the cupping effect. A basis of Gaussian functions…

医学物理 · 物理学 2016-06-17 Pierre Paleo , Michel Desvignes , Alessandro Mirone

Dimensionality reduction is an essential technique for multi-way large-scale data, i.e., tensor. Tensor ring (TR) decomposition has become popular due to its high representation ability and flexibility. However, the traditional TR…

数值分析 · 数学 2024-12-20 Longhao Yuan , Chao Li , Jianting Cao , Qibin Zhao

Topological Data Analysis (TDA) can be used to detect and characterize holes in an image, such as zero-dimensional holes (connected components) or one-dimensional holes (loops). However, there is currently no widely accepted statistical…

统计方法学 · 统计学 2025-08-26 Susan Glenn , Jessi Cisewski-Kehe , Jun Zhu , William M Bement

We consider the problem of reconstructing 2D images from randomly under-sampled confocal microscopy samples. The well known and widely celebrated total variation regularization, which is the L1 norm of derivatives, turns out to be…

图像与视频处理 · 电气工程与系统科学 2019-09-04 Bibin Francis , Manoj Mathew , Muthuvel Arigovindan

Recent successes in deep learning based deformable image registration (DIR) methods have demonstrated that complex deformation can be learnt directly from data while reducing computation time when compared to traditional methods. However,…

计算机视觉与模式识别 · 计算机科学 2019-08-20 Sharib Ali , Jens Rittscher

Given a static vertex-selection problem (e.g. independent set, dominating set) on a graph, we can define a corresponding temporally satisfying reconfiguration problem on a temporal graph which asks for a sequence of solutions to the…

数据结构与算法 · 计算机科学 2025-09-22 Tom Davot , Jessica Enright , Laura Larios-Jones

In the literature, it has been shown that the evolution of the known explicit 3D surface to the target one can be learned from 2D images using the instantaneous flow field, where the known and target 3D surfaces may largely differ in…

计算机视觉与模式识别 · 计算机科学 2024-11-25 AmirHossein Naghi Razlighi , Tiago Novello , Asen Nachkov , Thomas Probst , Danda Paudel

This article adapts the framework of metamorphosis to solve inverse problems in imaging that includes joint reconstruction and image registration. The deformations in question have two components, one that is a geometric deformation moving…

计算机视觉与模式识别 · 计算机科学 2018-06-25 Gris Barbara , Chen Chong , Öktem Ozan

Domain Generalized Video Semantic Segmentation (DGVSS) is trained on a single labeled driving domain and is directly deployed on unseen domains without target labels and test-time adaptation while maintaining temporally consistent…

计算机视觉与模式识别 · 计算机科学 2026-02-24 Siyu Chen , Ting Han , Haoling Huang , Chaolei Wang , Chengzheng Fu , Duxin Zhu , Guorong Cai , Jinhe Su

In a number of astrophysical applications one tries to determine the two-dimensional or three-dimensional structure of an object from a time series of measurements. While most methods used for reconstruction assume that object is static,…

天体物理学 · 物理学 2010-12-06 R. A. Frazin , M. D. Butala , A. Kemball , F. Kamalabadi

Recent developments in deep learning have revolutionized the paradigm of image restoration. However, its applications on real image denoising are still limited, due to its sensitivity to training data and the complex nature of real image…

计算机视觉与模式识别 · 计算机科学 2019-05-06 Jin Zeng , Jiahao Pang , Wenxiu Sun , Gene Cheung

Image reconstruction from radio-frequency data is pivotal in ultrafast plane wave ultrasound imaging. Unlike the conventional delay-and-sum (DAS) technique, which relies on somewhat imprecise assumptions, deep learning-based methods perform…

计算机视觉与模式识别 · 计算机科学 2023-12-18 Hengrong Lan , Zhiqiang Li , Qiong He , Jianwen Luo

Temporal retiming, the ability to reconstruct and render dynamic scenes at arbitrary timestamps, is crucial for applications such as slow-motion playback, temporal editing, and post-production. However, most existing 4D Gaussian Splatting…

计算机视觉与模式识别 · 计算机科学 2026-05-07 Xuezhen Wang , Li Ma , Yulin Shen , Zeyu Wang , Pedro V. Sander

We propose to harness the potential of simulation for the semantic segmentation of real-world self-driving scenes in a domain generalization fashion. The segmentation network is trained without any data of target domains and tested on the…

计算机视觉与模式识别 · 计算机科学 2022-08-11 Xiangyu Yue , Yang Zhang , Sicheng Zhao , Alberto Sangiovanni-Vincentelli , Kurt Keutzer , Boqing Gong