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Pneumothorax, a collapsed or dropped lung, is a fatal condition typically detected on a chest X-ray by an experienced radiologist. Due to shortage of such experts, automated detection systems based on deep neural networks have been…

图像与视频处理 · 电气工程与系统科学 2020-07-31 Antonio Sze-To , Hamid Tizhoosh

Model based iterative reconstruction (MBIR) algorithms for low-dose X-ray CT are computationally complex because of the repeated use of the forward and backward projection. Inspired by this success of deep learning in computer vision…

计算机视觉与模式识别 · 计算机科学 2017-08-01 Eunhee Kang , junhong Min , Jong Chul Ye

While content-based image retrieval (CBIR) has been extensively studied in natural image retrieval, its application to medical images presents ongoing challenges, primarily due to the 3D nature of medical images. Recent studies have shown…

计算机视觉与模式识别 · 计算机科学 2024-07-08 Farnaz Khun Jush , Steffen Vogler , Tuan Truong , Matthias Lenga

X-ray imaging dose from serial cone-beam CT (CBCT) scans raises a clinical concern in most image guided radiation therapy procedures. It is the goal of this paper to develop a fast GPU-based algorithm to reconstruct high quality CBCT images…

医学物理 · 物理学 2015-05-19 Xun Jia , Bin Dong , Yifei Lou , Steve B. Jiang

Purpose: To introduce a novel deep learning based approach for fast and high-quality dynamic multi-coil MR reconstruction by learning a complementary time-frequency domain network that exploits spatio-temporal correlations simultaneously…

图像与视频处理 · 电气工程与系统科学 2021-06-21 Chen Qin , Jinming Duan , Kerstin Hammernik , Jo Schlemper , Thomas Küstner , René Botnar , Claudia Prieto , Anthony N. Price , Joseph V. Hajnal , Daniel Rueckert

Current methods for 3D object reconstruction from a set of planar cross-sections still struggle to capture detailed topology or require a considerable number of cross-sections. In this paper, we present, to the best of our knowledge the…

计算机视觉与模式识别 · 计算机科学 2022-10-25 Azimkhon Ostonov

The explosive increase and ubiquitous accessibility of visual data on the Web have led to the prosperity of research activity in image search or retrieval. With the ignorance of visual content as a ranking clue, methods with text search…

多媒体 · 计算机科学 2017-09-05 Wengang Zhou , Houqiang Li , Qi Tian

Current methods for searching brain MR images rely on text-based approaches, highlighting a significant need for content-based image retrieval (CBIR) systems. Directly applying 3D brain MR images to machine learning models offers the…

计算机视觉与模式识别 · 计算机科学 2025-09-22 Shuhei Tomoshige , Hayato Muraki , Kenichi Oishi , Hitoshi Iyatomi

This work is concerned with applying iterative image reconstruction, based on constrained total-variation minimization, to low-intensity X-ray CT systems that have a high sampling rate. Such systems pose a challenge for iterative image…

医学物理 · 物理学 2016-11-17 Emil Y. Sidky , Rick Chartrand , Yuval Duchin , Christer Ullberg , Xiaochuan Pan

Photoacoustic imaging (PAI) suffers from inherent limitations that can degrade the quality of reconstructed results, such as noise, artifacts and incomplete data acquisition caused by sparse sampling or partial array detection. In this…

光学 · 物理学 2025-01-07 Yu Zhang , Shuang Li , Yibing Wang , Yu Sun , Wenyi Xiang

This paper is concerned with parameter identification problem for finite impulse response (FIR) systems with binary-valued observations under low computational complexity. Most of the existing algorithms under binary-valued observations…

系统与控制 · 电气工程与系统科学 2024-12-09 Tianning Han , Ying Wang , Yanlong Zhao

Composed image retrieval searches for a target image based on a multi-modal user query comprised of a reference image and modification text describing the desired changes. Existing approaches to solving this challenging task learn a mapping…

计算机视觉与模式识别 · 计算机科学 2023-11-07 Zheyuan Liu , Weixuan Sun , Yicong Hong , Damien Teney , Stephen Gould

Composed Image Retrieval (CIR) presents a significant challenge as it requires jointly understanding a reference image and a modified textual instruction to find relevant target images. Some existing methods attempt to use a two-stage…

计算机视觉与模式识别 · 计算机科学 2025-12-15 Jun Li , Hongjian Dou , Zhenyu Zhang , Kai Li , Shaoguo Liu , Tingting Gao

Iterative image reconstruction algorithms for optoacoustic tomography (OAT), also known as photoacoustic tomography, have the ability to improve image quality over analytic algorithms due to their ability to incorporate accurate models of…

偏微分方程分析 · 数学 2015-06-05 Kun wang , Richard Su , Alexander A. Oraevsky , Mark A. Anastasio

Coherent diffractive imaging (CDI), using both X-rays and electrons, has made extremely rapid progress over the past two decades. The associated reconstruction algorithms are typically iterative, and seeded with a crude first estimate. A…

图像与视频处理 · 电气工程与系统科学 2019-06-25 Konstantin M. Pavlov , Kaye S. Morgan , Vasily I. Punegov , David M. Paganin

A qualitative comparison of total variation like penalties (total variation, Huber variant of total variation, total generalized variation, ...) is made in the context of global seismic tomography. Both penalized and constrained…

地球物理 · 物理学 2012-04-09 Ignace Loris , Caroline Verhoeven

We propose a machine learning approach for quickly solving Mixed Integer Programs (MIP) by learning to prioritize a set of decision variables, which we call pseudo-backdoors, for branching that results in faster solution times.…

机器学习 · 计算机科学 2021-06-10 Aaron Ferber , Jialin Song , Bistra Dilkina , Yisong Yue

The ability of deep image prior (DIP) to recover high-quality images from incomplete or corrupted measurements has made it popular in inverse problems in image restoration and medical imaging including magnetic resonance imaging (MRI).…

计算机视觉与模式识别 · 计算机科学 2024-02-09 Shijun Liang , Evan Bell , Qing Qu , Rongrong Wang , Saiprasad Ravishankar

Successful motor-imagery brain-computer interface (MI-BCI) algorithms either extract a large number of handcrafted features and train a classifier, or combine feature extraction and classification within deep convolutional neural networks…

信号处理 · 电气工程与系统科学 2020-10-15 Michael Hersche , Luca Benini , Abbas Rahimi

Spectral computed tomography (CT) has a great potential in material identification and decomposition. To achieve high-quality material composition images and further suppress the x-ray beam hardening artifacts, we first propose a one-step…

计算机视觉与模式识别 · 计算机科学 2020-01-08 Weiwen Wu , Qian Wang , Fenglin Liu , Yining Zhu , Hengyong Yu