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Recent studies demonstrated the eligibility of convolutional neural networks (CNNs) for solving the image registration problem. CNNs enable faster transformation estimation and greater generalization capability needed for better support…

图像与视频处理 · 电气工程与系统科学 2021-02-10 Oleksii Bashkanov , Anneke Meyer , Daniel Schindele , Martin Schostak , Klaus Tönnies , Christian Hansen , Marko Rak

Prostate cancer is one of the most common causes of cancer deaths in men. There is a growing demand for noninvasively and accurately diagnostic methods that facilitate the current standard prostate cancer risk assessment in clinical…

图像与视频处理 · 电气工程与系统科学 2021-12-30 Ping-Chang Lin , Teodora Szasz , Hakizumwami B. Runesha

Several recent works have empirically observed that Convolutional Neural Nets (CNNs) are (approximately) invertible. To understand this approximate invertibility phenomenon and how to leverage it more effectively, we focus on a theoretical…

机器学习 · 统计学 2017-05-25 Anna C. Gilbert , Yi Zhang , Kibok Lee , Yuting Zhang , Honglak Lee

An approach to incorporate deep learning within an iterative image reconstruction framework to reconstruct images from severely incomplete measurement data is presented. Specifically, we utilize a convolutional neural network (CNN) as a…

计算机视觉与模式识别 · 计算机科学 2017-09-05 Brendan Kelly , Thomas P. Matthews , Mark A. Anastasio

Modulation recognition is a challenging task while performing spectrum sensing in a cognitive radio setup. Recently, the use of deep convolutional neural networks (CNNs) has shown to achieve state-of-the-art accuracy for modulation…

信号处理 · 电气工程与系统科学 2018-03-06 Kumar Yashashwi , Amit Sethi , Prasanna Chaporkar

Ultrasound Localization Microscopy (ULM) can map microvessels at a resolution of a few micrometers (\mu m). Transcranial ULM remains challenging in presence of aberrations caused by the skull, which lead to localization errors. Herein, we…

图像与视频处理 · 电气工程与系统科学 2023-09-20 Paul Xing , Jonathan Porée , Brice Rauby , Antoine Malescot , Éric Martineau , Vincent Perrot , Ravi L. Rungta , Jean Provost

Quantitative susceptibility mapping (QSM) utilizes MRI phase information to estimate tissue magnetic susceptibility. The generation of QSM requires solving ill-posed background field removal (BFR) and field-to-source inversion problems.…

图像与视频处理 · 电气工程与系统科学 2020-08-17 Juan Liu , Kevin M Koch

Regularization is critical for solving ill-posed geophysical inverse problems. Explicit regularization is often used, but there are opportunities to explore the implicit regularization effects that are inherent in a Neural Network…

机器学习 · 计算机科学 2024-07-10 Anran Xu , Lindsey J. Heagy

Model-based methods are widely used for reconstruction in compressed sensing (CS) magnetic resonance imaging (MRI), using regularizers to describe the images of interest. The reconstruction process is equivalent to solving a composite…

最优化与控制 · 数学 2024-02-27 Tao Hong , Luis Hernandez-Garcia , Jeffrey A. Fessler

Abnormal iron accumulation in the brain subcortical nuclei has been reported to be correlated to various neurodegenerative diseases, which can be measured through the magnetic susceptibility from the quantitative susceptibility mapping…

图像与视频处理 · 电气工程与系统科学 2020-08-04 Chao Chai , Pengchong Qiao , Bin Zhao , Huiying Wang , Guohua Liu , Hong Wu , E Mark Haacke , Wen Shen , Chen Cao , Xinchen Ye , Zhiyang Liu , Shuang Xia

The data-driven approach of supervised learning methods has limited applicability in solving dipole inversion in Quantitative Susceptibility Mapping (QSM) with varying scan parameters across different objects. To address this generalization…

图像与视频处理 · 电气工程与系统科学 2023-08-21 Zhuang Xiong , Yang Gao , Yin Liu , Amir Fazlollahi , Peter Nestor , Feng Liu , Hongfu Sun

Quantitative susceptibility mapping (QSM) provides a valuable tool for quantifying susceptibility distributions in human brains; however, two types of opposing susceptibility sources (i.e., paramagnetic and diamagnetic), may coexist in a…

图像与视频处理 · 电气工程与系统科学 2025-06-17 Min Li , Chen Chen , Zhenghao Li , Yin Liu , Shanshan Shan , Peng Wu , Pengfei Rong , Feng Liu , G. Bruce Pike , Alan H. Wilman , Hongfu Sun , Yang Gao

Quantitative susceptibility mapping (QSM) inevitably suffers from streaking artifacts caused by zeros on the conical surface of the dipole kernel in k-space. This work proposes a novel and accurate QSM reconstruction method based on a…

计算机视觉与模式识别 · 计算机科学 2019-10-16 Hyun-Seo Ahn , Sung-Hong Park , Jong Chul Ye

Deep Neural Network (DNN)-based image reconstruction, despite many successes, often exhibits uneven fidelity between high and low spatial frequency bands. In this paper we propose the Learning Synthesis by DNN (LS-DNN) approach where two…

计算机视觉与模式识别 · 计算机科学 2018-11-21 Mo Deng , Shuai Li , George Barbastathis

Seismic deconvolution is an essential step in seismic data processing that aims to extract layer information from noisy observed traces. In general, this is an ill-posed problem with non-unique solutions. Due to the sparse nature of the…

信号处理 · 电气工程与系统科学 2023-07-20 Peimeng Guan , Naveed Iqbal , Mark A. Davenport , Mudassir Masood

We propose a multi-scale deep energy model that is strongly convex in the local neighbourhood around the data manifold to represent its probability density, with application in inverse problems. In particular, we represent the negative…

机器学习 · 计算机科学 2025-02-06 Jyothi Rikhab Chand , Mathews Jacob

In the last years, the design of image reconstruction methods in the field of quantitative Magnetic Resonance Imaging (qMRI) has experienced a paradigm shift. Often, when dealing with (quantitative) MR image reconstruction problems, one is…

最优化与控制 · 数学 2024-03-01 Andreas Kofler , Felix Frederik Zimmermann , Kostas Papafitsoros

Detection of cell nuclei in microscopic images is a challenging research topic, because of limitations in cellular image quality and diversity of nuclear morphology, i.e. varying nuclei shapes, sizes, and overlaps between multiple cell…

计算机视觉与模式识别 · 计算机科学 2018-07-10 Mohammad Tofighi , Tiantong Guo , Jairam K. P. Vanamala , Vishal Monga

This paper presents an innovative deep learning pipeline which estimates the relative pose of a spacecraft by incorporating the temporal information from a rendezvous sequence. It leverages the performance of long short-term memory (LSTM)…

计算机视觉与模式识别 · 计算机科学 2024-10-28 Duarte Rondao , Nabil Aouf , Mark A. Richardson

Machine learning (ML) methods have become popular for parameter inference in cosmology, although their reliance on specific training data can cause difficulties when applied across different data sets. By reproducing and testing networks…

宇宙学与河外天体物理 · 物理学 2024-12-23 Kimeel Sooknunan , Emma Chapman , Luke Conaboy , Daniel Mortlock , Jonathan Pritchard