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Diffeomorphic image registration (DIR) is a fundamental task in 3D medical image analysis that seeks topology-preserving deformations between image pairs. To ensure diffeomorphism, a common approach is to model the deformation field as the…

Computer Vision and Pattern Recognition · Computer Science 2025-03-18 Mohammadjavad Matinkia , Nilanjan Ray

This paper presents DeepFLASH, a novel network with efficient training and inference for learning-based medical image registration. In contrast to existing approaches that learn spatial transformations from training data in the high…

Image and Video Processing · Electrical Eng. & Systems 2020-04-07 Jian Wang , Miaomiao Zhang

The challenge of markerless human motion tracking is the high dimensionality of the search space. Thus, efficient exploration in the search space is of great significance. In this paper, a motion capturing algorithm is proposed for upper…

Computer Vision and Pattern Recognition · Computer Science 2020-02-25 Ziyuan Liu , Dongheui Lee , Wolfgang Sepp

Fetal magnetic resonance imaging (MRI) is challenged by uncontrollable, large, and irregular fetal movements. It is, therefore, performed through visual monitoring of fetal motion and repeated acquisitions to ensure diagnostic-quality…

Image and Video Processing · Electrical Eng. & Systems 2020-06-09 Ayush Singh , Seyed Sadegh Mohseni Salehi , Ali Gholipour

Current magnetic resonance imaging (MRI) requires the subject to remain stationary to limit motion artifacts and avoid unwanted field-induced brain stimulation. However, imaging during large-scale motion could enable studies in which motion…

Disentangling anatomical and contrast information from medical images has gained attention recently, demonstrating benefits for various image analysis tasks. Current methods learn disentangled representations using either paired multi-modal…

Image and Video Processing · Electrical Eng. & Systems 2022-05-11 Lianrui Zuo , Yihao Liu , Yuan Xue , Shuo Han , Murat Bilgel , Susan M. Resnick , Jerry L. Prince , Aaron Carass

We introduce SparseVM, a method that registers clinical-quality 3D MR scans both faster and more accurately than previously possible. Deformable alignment, or registration, of clinical scans is a fundamental task for many clinical…

Computer Vision and Pattern Recognition · Computer Science 2020-04-07 Kathleen M. Lewis , Natalia S. Rost , John Guttag , Adrian V. Dalca

Image registration is a fundamental task in medical image analysis. Recently, deep learning based image registration methods have been extensively investigated due to their excellent performance despite the ultra-fast computational time.…

Computer Vision and Pattern Recognition · Computer Science 2020-08-14 Boah Kim , Dong Hwan Kim , Seong Ho Park , Jieun Kim , June-Goo Lee , Jong Chul Ye

Accurate compensation of brain shift is critical for maintaining the reliability of neuronavigation during neurosurgery. While keypoint-based registration methods offer robustness to large deformations and topological changes, they…

Image and Video Processing · Electrical Eng. & Systems 2026-02-05 Tiago Assis , Ines P. Machado , Benjamin Zwick , Nuno C. Garcia , Reuben Dorent

Deformable image registration (alignment) is highly sought after in numerous clinical applications, such as computer aided diagnosis and disease progression analysis. Deep Convolutional Neural Network (DCNN)-based image registration methods…

Image and Video Processing · Electrical Eng. & Systems 2024-05-17 Ruizhe Li , Grazziela Figueredo , Dorothee Auer , Christian Wagner , Xin Chen

Kinect skeleton tracker is able to achieve considerable human body tracking performance in convenient and a low-cost manner. However, The tracker often captures unnatural human poses such as discontinuous and vibrated motions when…

Computer Vision and Pattern Recognition · Computer Science 2016-04-18 Youngbin Park , Sungphill Moon , Il Hong Suh

In this work we propose a deep learning network for deformable image registration (DIRNet). The DIRNet consists of a convolutional neural network (ConvNet) regressor, a spatial transformer, and a resampler. The ConvNet analyzes a pair of…

Computer Vision and Pattern Recognition · Computer Science 2017-12-08 Bob D. de Vos , Floris F. Berendsen , Max A. Viergever , Marius Staring , Ivana Išgum

Ultrasound imaging is a cost-effective and radiation-free modality for visualizing anatomical structures in real-time, making it ideal for guiding surgical interventions. However, its limited field-of-view, speckle noise, and imaging…

Image and Video Processing · Electrical Eng. & Systems 2024-04-26 Remi Delaunay , Ruisi Zhang , Filipe C. Pedrosa , Navid Feizi , Dianne Sacco , Rajni Patel , Jayender Jagadeesan

The ability to identify the static background in videos captured by a moving camera is an important pre-requisite for many video applications (e.g. video stabilization, stitching, and segmentation). Existing methods usually face…

Computer Vision and Pattern Recognition · Computer Science 2019-03-07 Kaimo Lin , Nianjuan Jiang , Loong Fah Cheong , Jiangbo Lu , Xun Xu

We propose to learn a probabilistic motion model from a sequence of images for spatio-temporal registration. Our model encodes motion in a low-dimensional probabilistic space - the motion matrix - which enables various motion analysis tasks…

Computer Vision and Pattern Recognition · Computer Science 2021-02-02 Julian Krebs , Hervé Delingette , Nicholas Ayache , Tommaso Mansi

Though, deep learning based medical image registration is currently starting to show promising advances, often, it still fells behind conventional frameworks in terms of registration accuracy. This is especially true for applications where…

Computer Vision and Pattern Recognition · Computer Science 2020-05-28 Lasse Hansen , Mattias P. Heinrich

A new methodology is proposed to estimate 3D displacement fields from pairs of images obtained from X-Ray Computed Micro Tomography (XCMT). Contrary to local approaches, a global approach is followed herein that evaluates {\em continuous}…

Classical Physics · Physics 2007-12-18 Stephane Roux , François Hild , Philippe Viot , Dominique Bernard

Deep learning-based methods have recently demonstrated promising results in deformable image registration for a wide range of medical image analysis tasks. However, existing deep learning-based methods are usually limited to small…

Image and Video Processing · Electrical Eng. & Systems 2020-07-01 Tony C. W. Mok , Albert C. S. Chung

We present a new method to capture detailed human motion, sampling more than 1000 unique points on the body. Our method outputs highly accurate 4D (spatio-temporal) point coordinates and, crucially, automatically assigns a unique label to…

Computer Vision and Pattern Recognition · Computer Science 2021-05-04 He Chen , Hyojoon Park , Kutay Macit , Ladislav Kavan

We present a new approach for representing and reconstructing multidimensional magnetic resonance imaging (MRI) data. Our method builds on a novel, learned feature-based image representation that disentangles different types of features,…

Image and Video Processing · Electrical Eng. & Systems 2026-01-01 Ruiyang Zhao , Fan Lam