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相关论文: MBIR Training for a 2.5D DL network in X-ray CT

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Deep learning (DL) has recently emerged as a pivotal technology for enhancing magnetic resonance imaging (MRI), a critical tool in diagnostic radiology. This review paper provides a comprehensive overview of recent advances in DL for MRI…

机器学习 · 计算机科学 2024-04-25 Reinhard Heckel , Mathews Jacob , Akshay Chaudhari , Or Perlman , Efrat Shimron

In this paper, we propose a data-driven deep learning (DL) approach to jointly design the pilot signals and channel estimator for wideband massive multiple-input multiple-output (MIMO) systems. By exploiting the angular-domain…

信息论 · 计算机科学 2020-03-13 Xisuo Ma , Zhen Gao

Previous work has shown that it is possible to train deep neural networks with low precision weights and activations. In the extreme case it is even possible to constrain the network to binary values. The costly floating point…

神经与进化计算 · 计算机科学 2017-11-30 Sam Leroux , Steven Bohez , Tim Verbelen , Bert Vankeirsbilck , Pieter Simoens , Bart Dhoedt

Content Based Image Retrieval(CBIR) is one of the important subfield in the field of Information Retrieval. The goal of a CBIR algorithm is to retrieve semantically similar images in response to a query image submitted by the end user. CBIR…

信息检索 · 计算机科学 2014-09-03 Vikas Verma

Purpose: To develop and evaluate a deep learning (DL) method for free-breathing phase-sensitive inversion recovery (PSIR) late gadolinium enhancement (LGE) cardiac MRI that produces diagnostic-quality images from a single acquisition over…

图像与视频处理 · 电气工程与系统科学 2026-04-13 Arda Atalik , Hui Xue , Rhodri H. Davies , Thomas A. Treibel , Daniel K. Sodickson , Michael S. Hansen , Peter Kellman

Fast data acquisition in Magnetic Resonance Imaging (MRI) is vastly in demand and scan time directly depends on the number of acquired k-space samples. Recently, the deep learning-based MRI reconstruction techniques were suggested to…

计算机视觉与模式识别 · 计算机科学 2019-03-20 Ali Pour Yazdanpanah , Onur Afacan , Simon K. Warfield

Modern MRI schemes, which rely on compressed sensing or deep learning algorithms to recover MRI data from undersampled multichannel Fourier measurements, are widely used to reduce scan time. The image quality of these approaches is heavily…

图像与视频处理 · 电气工程与系统科学 2020-07-06 Hemant Kumar Aggarwal , Mathews Jacob

Neural networks are highly effective tools for image reconstruction problems such as denoising and compressive sensing. To date, neural networks for image reconstruction are almost exclusively convolutional. The most popular architecture is…

计算机视觉与模式识别 · 计算机科学 2022-02-07 Youssef Mansour , Kang Lin , Reinhard Heckel

Reconstructing the shape and spatially varying surface appearances of a physical-world object as well as its surrounding illumination based on 2D images (e.g., photographs) of the object has been a long-standing problem in computer vision…

计算机视觉与模式识别 · 计算机科学 2024-02-02 Cheng Sun , Guangyan Cai , Zhengqin Li , Kai Yan , Cheng Zhang , Carl Marshall , Jia-Bin Huang , Shuang Zhao , Zhao Dong

Learning similarity functions between image pairs with deep neural networks yields highly correlated activations of embeddings. In this work, we show how to improve the robustness of such embeddings by exploiting the independence within…

计算机视觉与模式识别 · 计算机科学 2018-01-16 Michael Opitz , Georg Waltner , Horst Possegger , Horst Bischof

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

Purpose: To accelerate brain 3D MRI scans by using a deep learning method for reconstructing images from highly-undersampled multi-coil k-space data Methods: DL-Speed, an unrolled optimization architecture with dense skip-layer connections,…

Deep learning based computed tomography (CT) reconstruction has demonstrated outstanding performance on simulated 2D low-dose CT data. This applies in particular to domain adapted neural networks, which incorporate a handcrafted physics…

图像与视频处理 · 电气工程与系统科学 2023-11-30 Jevgenija Rudzusika , Buda Bajić , Thomas Koehler , Ozan Öktem

Deep convolutional neural networks have proven to be well suited for image classification applications. However, if there is distortion in the image, the classification accuracy can be significantly degraded, even with state-of-the-art…

计算机视觉与模式识别 · 计算机科学 2019-02-15 Minho Ha , Younghoon Byeon , Youngjoo Lee , Sunggu Lee

Most of the Deep Neural Networks (DNNs) based CT image denoising literature shows that DNNs outperform traditional iterative methods in terms of metrics such as the RMSE, the PSNR and the SSIM. In many instances, using the same metrics, the…

计算机视觉与模式识别 · 计算机科学 2021-11-19 Prabhat KC , Rongping Zeng , M. Mehdi Farhangi , Kyle J. Myers

We propose a novel technique for faster deep neural network training which systematically applies sample-based approximation to the constituent tensor operations, i.e., matrix multiplications and convolutions. We introduce new sampling…

机器学习 · 计算机科学 2021-10-27 Menachem Adelman , Kfir Y. Levy , Ido Hakimi , Mark Silberstein

Low-dose CT (LDCT) imaging attracted a considerable interest for the reduction of the object's exposure to X-ray radiation. In recent years, supervised deep learning (DL) has been extensively studied for LDCT image reconstruction, which…

图像与视频处理 · 电气工程与系统科学 2022-10-06 Qiaoqiao Ding , Hui Ji , Yuhui Quan , Xiaoqun Zhang

Purpose The purpose of this study was to develop and evaluate a deep neural network (DNN) capable of generating flat-panel detector (FPD) images from digitally reconstructed radiography (DRR) images in lung cancer treatment, with the aim of…

计算机视觉与模式识别 · 计算机科学 2025-03-04 Chisako Hayashi , Shinichiro Mori , Yasukuni Mori , Lim Taehyeung , Hiroki Suyari , Hitoshi Ishikawa

Multispectral computed tomography (CT) enables advanced material characterization by acquiring energy-resolved projection data. However, since the incoming X-ray flux is be distributed across multiple narrow energy bins, the photon count…

Image resizing operation is a fundamental preprocessing module in modern computer vision. Throughout the deep learning revolution, researchers have overlooked the potential of alternative resizing methods beyond the commonly used resizers…

计算机视觉与模式识别 · 计算机科学 2023-04-07 Zhengzhong Tu , Peyman Milanfar , Hossein Talebi