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Conventional Computed Tomography (CT) methods require large numbers of noise-free projections for accurate density reconstructions, limiting their applicability to the more complex class of Cone Beam Geometry CT (CBCT) reconstruction.…

图像与视频处理 · 电气工程与系统科学 2023-07-18 Samuele Papa , David M. Knigge , Riccardo Valperga , Nikita Moriakov , Miltos Kofinas , Jan-Jakob Sonke , Efstratios Gavves

Metal Artifacts creates often difficulties for a high quality visual assessment of post-operative imaging in {c}omputed {t}omography (CT). A vast body of methods have been proposed to tackle this issue, but {these} methods were designed for…

计算机视觉与模式识别 · 计算机科学 2021-04-27 Wang Zihao , Vandersteen Clair , Demarcy Thomas , Gnansia Dan , Raffaelli Charles , Guevara Nicolas , Delingette Herve

Cone-beam X-ray computed tomography (XCT) is an essential imaging technique for generating 3D reconstructions of internal structures, with applications ranging from medical to industrial imaging. Producing high-quality reconstructions…

图像与视频处理 · 电气工程与系统科学 2025-06-18 Haley Duba-Sullivan , Aniket Pramanik , Venkatakrishnan Singanallur , Amirkoushyar Ziabari

\textbf{Purpose:} C-arm fluoroscopy's 3D reconstruction relies on accurate intrinsic calibration, which is often challenging in clinical practice. This study ensures high-precision reconstruction accuracy by re-optimizing the extrinsic…

计算机视觉与模式识别 · 计算机科学 2026-03-17 Lin Li , Benjamin Aubert , Paul Kemper , Aric Plumley

Thrombectomy is one of the most effective treatments for ischemic stroke, but it is resource and personnel-intensive. We propose employing deep learning to automate critical aspects of thrombectomy, thereby enhancing efficiency and safety.…

计算机视觉与模式识别 · 计算机科学 2025-10-21 Ahmad Arrabi , Jay hwasung Jung , J Le , A Nguyen , J Reed , E Stahl , Nathan Franssen , Scott Raymond , Safwan Wshah

Optimizing k-space sampling trajectories is a promising yet challenging topic for fast magnetic resonance imaging (MRI). This work proposes to optimize a reconstruction method and sampling trajectories jointly concerning image…

信号处理 · 电气工程与系统科学 2022-04-15 Guanhua Wang , Tianrui Luo , Jon-Fredrik Nielsen , Douglas C. Noll , Jeffrey A. Fessler

Computed Tomography (CT) plays a vital role in inspecting the internal structures of industrial objects. Furthermore, achieving high-quality CT reconstruction from sparse views is essential for reducing production costs. While classic…

计算机视觉与模式识别 · 计算机科学 2026-03-03 Wangduo Xie , Matthew B. Blaschko

Automating the quality control of shot-blasted steel surfaces is crucial for improving manufacturing efficiency and consistency. This study presents a dataset of 1654 labeled RGB images (512x512) of steel surfaces, classified as either…

计算机视觉与模式识别 · 计算机科学 2025-04-30 Irina Ruzavina , Lisa Sophie Theis , Jesse Lemeer , Rutger de Groen , Leo Ebeling , Andrej Hulak , Jouaria Ali , Guangzhi Tang , Rico Mockel

Accurate segmentation of anatomical structures is vital for medical image analysis. The state-of-the-art accuracy is typically achieved by supervised learning methods, where gathering the requisite expert-labeled image annotations in a…

计算机视觉与模式识别 · 计算机科学 2020-12-04 Yuhang Lu , Kang Zheng , Weijian Li , Yirui Wang , Adam P. Harrison , Chihung Lin , Song Wang , Jing Xiao , Le Lu , Chang-Fu Kuo , Shun Miao

The presence of metallic implants often introduces severe metal artifacts in the X-ray CT images, which could adversely influence clinical diagnosis or dose calculation in radiation therapy. In this work, we present a novel…

图像与视频处理 · 电气工程与系统科学 2021-09-29 Lequan Yu , Zhicheng Zhang , Xiaomeng Li , Hongyi Ren , Wei Zhao , Lei Xing

Computed tomography (CT) to cone-beam computed tomography (CBCT) deformable image registration (DIR) is a crucial step in adaptive radiation therapy. Current intensity-based registration algorithms, such as demons, may fail in the context…

医学物理 · 物理学 2017-08-23 Xin Zhen , Xuejun Gu , Hao Yan , Linghong Zhou , Xun Jia , Steve B. Jiang

Sparse-View Computed Tomography (SVCT) offers low-dose and fast imaging but suffers from severe artifacts. Optimizing the sampling strategy is an essential approach to improving the imaging quality of SVCT. However, current methods…

图像与视频处理 · 电气工程与系统科学 2024-09-04 Liutao Yang , Jiahao Huang , Yingying Fang , Angelica I Aviles-Rivero , Carola-Bibiane Schonlieb , Daoqiang Zhang , Guang Yang

Industrial CT is useful for defect detection, dimensional inspection and geometric analysis. While it does not meet the needs of industrial mass production, because of its time-consuming imaging procedure. This article proposes a novel…

仪器与探测器 · 物理学 2022-06-20 Zheng Fang , Tingjun Wang , Bingan Yuan , Xinlin Qing , Shunren Li

In this paper, we present our approach to the 3D CBCT Challenge 2024, a part of ICASSP SP Grand Challenges 2024. Improvement in Cone Beam Computed Tomography (CBCT) reconstruction has been achieved by integrating Swin Image Restoration…

图像与视频处理 · 电气工程与系统科学 2024-11-19 Sasidhar Alavala , Subrahmanyam Gorthi

Industrial X-ray cone-beam CT (XCT) scanners are widely used for scientific imaging and non-destructive characterization. Industrial CBCT scanners use large detectors containing millions of pixels and the subsequent 3D reconstructions can…

图像与视频处理 · 电气工程与系统科学 2025-01-24 Aniket Pramanik , Singanallur V. Venkatakrishnan , Obaidullah Rahman , Amirkoushyar Ziabari

Recently, spectral CT has been drawing a lot of attention in a variety of clinical applications primarily due to its capability of providing quantitative information about material properties. The quantitative integrity of the reconstructed…

医学物理 · 物理学 2018-01-12 Shiyu Xu , Peter Prinsen , Jens Wiegert , Ravindra Manjeshwar

Decompressive craniectomy (DC) is a common surgical procedure consisting of the removal of a portion of the skull that is performed after incidents such as stroke, traumatic brain injury (TBI) or other events that could result in acute…

图像与视频处理 · 电气工程与系统科学 2020-07-14 Franco Matzkin , Virginia Newcombe , Susan Stevenson , Aneesh Khetani , Tom Newman , Richard Digby , Andrew Stevens , Ben Glocker , Enzo Ferrante

Dynamic cone-beam computed tomography (CBCT) can capture high-spatial-resolution, time-varying images for motion monitoring, patient setup, and adaptive planning of radiotherapy. However, dynamic CBCT reconstruction is an extremely…

医学物理 · 物理学 2023-12-05 Hua-Chieh Shao , Mengke Tielige , Tinsu Pan , You Zhang

Detection of unwanted (`foreign') objects within products is a common procedure in many branches of industry for maintaining production quality. X-ray imaging is a fast, non-invasive and widely applicable method for foreign object…

计算机视觉与模式识别 · 计算机科学 2022-08-19 Mathé T. Zeegers , Tristan van Leeuwen , Daniël M. Pelt , Sophia Bethany Coban , Robert van Liere , Kees Joost Batenburg

Computed Tomography (CT) is a technology that reconstructs cross-sectional images using X-ray images taken from multiple directions. In CT, hundreds of X-ray images acquired as the X-ray source and detector rotate around a central axis, are…

图像与视频处理 · 电气工程与系统科学 2024-12-05 Shin Kim