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Medical image slice interpolation is an active field of research. The methods for this task can be categorized into two broad groups: intensity-based and object-based interpolation methods. While intensity-based methods are generally easier…

图像与视频处理 · 电气工程与系统科学 2020-04-30 Dilip Kumar Verma , Ahmadreza Baghaie

We study iterative signal reconstruction in computed tomography (CT), wherein measurements are produced by a linear transformation of the unknown signal followed by an exponential nonlinear map. Approaches based on pre-processing the data…

最优化与控制 · 数学 2024-07-19 Vasileios Charisopoulos , Rebecca Willett

Joint image registration and segmentation has long been an active area of research in medical imaging. Here, we reformulate this problem in a deep learning setting using adversarial learning. We consider the case in which fixed and moving…

图像与视频处理 · 电气工程与系统科学 2019-07-01 Mohamed S. Elmahdy , Jelmer M. Wolterink , Hessam Sokooti , Ivana Išgum , Marius Staring

CBCTs in image-guided radiotherapy provide crucial anatomy information for patient setup and plan evaluation. Longitudinal CBCT image registration could quantify the inter-fractional anatomic changes. The purpose of this study is to propose…

图像与视频处理 · 电气工程与系统科学 2023-04-26 Huiqiao Xie , Yang Lei , Yabo Fu , Tonghe Wang , Justin Roper , Jeffrey D. Bradley , Pretesh Patel , Tian Liu , Xiaofeng Yang

Purpose: We perform anatomical landmarking for craniomaxillofacial (CMF) bones without explicitly segmenting them. Towards this, we propose a new simple yet efficient deep network architecture, called \textit{relational reasoning network…

机器学习 · 计算机科学 2022-09-20 Neslisah Torosdagli , Syed Anwar , Payal Verma , Denise K Liberton , Janice S. Lee , Wade W. Han , Ulas Bagci

This paper aims to solve a fundamental problem in intensity-based 2D/3D registration, which concerns the limited capture range and need for very good initialization of state-of-the-art image registration methods. We propose a regression…

计算机视觉与模式识别 · 计算机科学 2017-03-07 Benjamin Hou , Amir Alansary , Steven McDonagh , Alice Davidson , Mary Rutherford , Jo V. Hajnal , Daniel Rueckert , Ben Glocker , Bernhard Kainz

Autonomous ultrasound (US) imaging has gained increased interest recently, and it has been seen as a potential solution to overcome the limitations of free-hand US examinations, such as inter-operator variations. However, it is still…

图像与视频处理 · 电气工程与系统科学 2023-07-11 Zhongliang Jiang , Chenyang Li , Xuesong Li , Nassir Navab

We present a 3-step registration pipeline for differently stained histological serial sections that consists of 1) a robust pre-alignment, 2) a parametric registration computed on coarse resolution images, and 3) an accurate nonlinear…

计算机视觉与模式识别 · 计算机科学 2019-04-01 Johannes Lotz , Nick Weiss , Stefan Heldmann

Computerized registration between maxillofacial cone-beam computed tomography (CT) images and a scanned dental model is an essential prerequisite in surgical planning for dental implants or orthognathic surgery. We propose a novel method…

计算机视觉与模式识别 · 计算机科学 2021-01-26 Minyoung Chung , Jingyu Lee , Wisoo Song , Youngchan Song , Il-Hyung Yang , Jeongjin Lee , Yeong-Gil Shin

Deformable image registration is a key task in medical image analysis. The Brain Tumor Sequence Registration challenge (BraTS-Reg) aims at establishing correspondences between pre-operative and follow-up scans of the same patient diagnosed…

图像与视频处理 · 电气工程与系统科学 2022-12-12 Javid Abderezaei , Aymeric Pionteck , Agamdeep Chopra , Mehmet Kurt

Deformable image registration (DIR) is a crucial tool in radiotherapy for analyzing anatomical changes and motion patterns. Current DIR implementations rely on discrete volumetric motion representation, which often leads to compromised…

医学物理 · 物理学 2025-07-22 Xia Li , Runzhao Yang , Muheng Li , Xiangtai Li , Antony J. Lomax , Joachim M. Buhmann , Ye Zhang

This paper investigates a novel intelligent reflecting surface (IRS)-based symbiotic radio (SR) system architecture consisting of a transmitter, an IRS, and an information receiver (IR). The primary transmitter communicates with the IR and…

信息论 · 计算机科学 2022-02-09 Meng Hua , Qingqing Wu , Luxi Yang , Robert Schober , H. Vincent Poor

Segmentations are crucial in medical imaging to obtain morphological, volumetric, and radiomics biomarkers. Manual segmentation is accurate but not feasible in the radiologist's clinical workflow, while automatic segmentation generally…

Purpose: To propose and evaluate an accelerated $T_{1\rho}$ quantification method that combines $T_{1\rho}$-weighted fast spin echo (FSE) images and proton density (PD)-weighted anatomical FSE images, leveraging deep learning models for…

图像与视频处理 · 电气工程与系统科学 2025-08-06 Junru Zhong , Chaoxing Huang , Ziqiang Yu , Fan Xiao , Siyue Li , Tim-Yun Michael Ong , Ki-Wai Kevin Ho , Queenie Chan , James F. Griffith , Weitian Chen

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

Coordinate-based neural representations have shown significant promise as an alternative to discrete, array-based representations for complex low dimensional signals. However, optimizing a coordinate-based network from randomly initialized…

计算机视觉与模式识别 · 计算机科学 2021-03-24 Matthew Tancik , Ben Mildenhall , Terrance Wang , Divi Schmidt , Pratul P. Srinivasan , Jonathan T. Barron , Ren Ng

Surrogate models for the rapid inference of nonlinear boundary value problems in mechanics are helpful in a broad range of engineering applications. However, effective surrogate modeling of applications involving the contact of deformable…

计算工程、金融与科学 · 计算机科学 2025-07-21 Vijay K. Dubey , Collin E. Haese , Osman Gültekin , David Dalton , Manuel K. Rausch , Jan N. Fuhg

To facilitate a prospective estimation of CT effective dose and risk minimization process, a prospective spatial dose estimation and the known anatomical structures are expected. To this end, a CT reconstruction method is required to…

图像与视频处理 · 电气工程与系统科学 2024-01-24 Chang Liu , Laura Klein , Yixing Huang , Edith Baader , Michael Lell , Marc Kachelrieß , Andreas Maier

Parallel imaging is a widely-used technique to accelerate magnetic resonance imaging (MRI). However, current methods still perform poorly in reconstructing artifact-free MRI images from highly undersampled k-space data. Recently, implicit…

图像与视频处理 · 电气工程与系统科学 2022-10-20 Ruimin Feng , Qing Wu , Yuyao Zhang , Hongjiang Wei

Computed Tomography (CT) is pivotal in industrial quality control and medical diagnostics. Sparse-view CT, offering reduced ionizing radiation, faces challenges due to its under-sampled nature, leading to ill-posed reconstruction problems.…

计算机视觉与模式识别 · 计算机科学 2024-11-06 Jiayang Shi , Junyi Zhu , Daniel M. Pelt , K. Joost Batenburg , Matthew B. Blaschko