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Deformable image registration is crucial for aligning medical images in a nonlinear fashion across different modalities, allowing for precise spatial correspondence between varying anatomical structures. This paper presents NestedMorph, a…

Image and Video Processing · Electrical Eng. & Systems 2024-12-11 Gurucharan Marthi Krishna Kumar , Janine Mendola , Amir Shmuel

A key technology enabling the success of catheter ablation treatment for atrial tachycardia is activation mapping, which relies on manual local activation time (LAT) annotation of all acquired intracardiac electrogram (EGM) signals. This is…

Signal Processing · Electrical Eng. & Systems 2022-06-16 Zerui Chen , Sonia Xhyn Teo , Andrie Ochtman , Shier Nee Saw , Nicholas Cheng , Eric Tien Siang Lim , Murphy Lyu , Hwee Kuan Lee

Mammogram mass detection is crucial for diagnosing and preventing the breast cancers in clinical practice. The complementary effect of multi-view mammogram images provides valuable information about the breast anatomical prior structure and…

Computer Vision and Pattern Recognition · Computer Science 2021-05-24 Yuhang Liu , Fandong Zhang , Chaoqi Chen , Siwen Wang , Yizhou Wang , Yizhou Yu

We present a novel approach to robust pose graph optimization based on Graduated Non-Convexity (GNC). Unlike traditional GNC-based methods, the proposed approach employs an adaptive shape function using B-spline to optimize the shape of the…

Robotics · Computer Science 2023-09-26 Seungwon Choi , Wonseok Kang , Jiseong Chung , Jaehyun Kim , Tae-wan Kim

Multimodal image registration (MIR) is a fundamental procedure in many image-guided therapies. Recently, unsupervised learning-based methods have demonstrated promising performance over accuracy and efficiency in deformable image…

Computer Vision and Pattern Recognition · Computer Science 2020-11-13 Zhe Xu , Jiangpeng Yan , Jie Luo , Xiu Li , Jayender Jagadeesan

Non-rigid registration is a key component in soft-tissue navigation. We focus on laparoscopic liver surgery, where we register the organ model obtained from a preoperative CT scan to the intraoperative partial organ surface, reconstructed…

Image and Video Processing · Electrical Eng. & Systems 2020-06-01 Micha Pfeiffer , Carina Riediger , Stefan Leger , Jens-Peter Kühn , Danilo Seppelt , Ralf-Thorsten Hoffmann , Jürgen Weitz , Stefanie Speidel

Electrocardiogram (ECG) is a simple non-invasive measure to identify heart-related issues such as irregular heartbeats known as arrhythmias. While artificial intelligence and machine learning is being utilized in a wide range of healthcare…

Machine Learning · Computer Science 2022-07-11 Minh Cao , Tianqi Zhao , Yanxun Li , Wenhao Zhang , Peyman Benharash , Ramin Ramezani

Medical images acquired from standardized protocols show consistent macroscopic or microscopic anatomical structures, and these structures consist of composable/decomposable organs and tissues, but existing self-supervised learning (SSL)…

Computer Vision and Pattern Recognition · Computer Science 2025-01-20 Ziyu Zhou , Haozhe Luo , Mohammad Reza Hosseinzadeh Taher , Jiaxuan Pang , Xiaowei Ding , Michael Gotway , Jianming Liang

In this paper a new integral equation solution to the elastic-plastic problem of functionally graded bars under torsional loading is presented. The formulation is general in the sense that it can be applied to an arbitrary cross-section…

Numerical Analysis · Mathematics 2017-05-30 George C. Tsiatas , Nick G. Babouskos

Traditional authentication systems use alphanumeric or graphical passwords, or token-based techniques that require "something you know and something you have". The disadvantages of these systems include the risks of forgetfulness, loss, and…

Cryptography and Security · Computer Science 2019-09-25 Ebrahim Al Alkeem , Song-Kyoo Kim , Chan Yeob Yeun , M. Jamal Zemerly , Kin Poon , Paul D. Yoo

We propose a novel method for non-rigid 3-D motion correction of orthogonally raster-scanned optical coherence tomography angiography volumes. This is the first approach that aligns predominantly axial structural features like retinal…

Accurate segmentation of surgical instrument tip is an important task for enabling downstream applications in robotic surgery, such as surgical skill assessment, tool-tissue interaction and deformation modeling, as well as surgical…

Computer Vision and Pattern Recognition · Computer Science 2023-09-06 Jiaqi Liu , Yonghao Long , Kai Chen , Cheuk Hei Leung , Zerui Wang , Qi Dou

Deformable registration has been one of the pillars of biomedical image computing. Conventional approaches refer to the definition of a similarity criterion that, once endowed with a deformation model and a smoothness constraint, determines…

Computer Vision and Pattern Recognition · Computer Science 2018-09-25 Enzo Ferrante , Puneet K. Dokania , Rafael Marini Silva , Nikos Paragios

This paper introduces a hybrid two-stage registration framework for reconstructing three-dimensional (3D) kidney anatomy from macroscopic slices, using CT-derived models as the geometric reference standard. The approach addresses the…

Image and Video Processing · Electrical Eng. & Systems 2026-02-17 Tomasz Les , Tomasz Markiewicz , Malgorzata Lorent , Miroslaw Dziekiewicz , Krzysztof Siwek

Deformable medical image registration is an essential task in computer-assisted interventions. This problem is particularly relevant to oncological treatments, where precise image alignment is necessary for tracking tumor growth, assessing…

Computer Vision and Pattern Recognition · Computer Science 2025-06-04 Stefano Fogarollo , Gregor Laimer , Reto Bale , Matthias Harders

This study investigates the use of the unsupervised deep learning framework VoxelMorph for deformable registration of longitudinal abdominopelvic CT images acquired in patients with bone metastases from breast cancer. The CT images were…

Structural and mechanical differences between cancerous and healthy tissue give rise to variations in macroscopic properties such as visual appearance and elastic modulus that show promise as signatures for early cancer detection. Atomic…

Despite recent progress in calibration-free monocular SLAM via 3D vision foundation models, scale drift remains severe on long sequences. Motion-agnostic partitioning breaks contextual coherence and causes zero-motion drift, while…

Computer Vision and Pattern Recognition · Computer Science 2026-02-06 Zhuang Xiong , Chen Zhang , Qingshan Xu , Wenbing Tao

The latest biological findings observe that the traditional motionless 'lock-and-key' theory is not generally applicable because the receptor and ligand are constantly moving. Nonetheless, remarkable changes in associated atomic sites and…

Computational Engineering, Finance, and Science · Computer Science 2023-11-01 Fang Wu , Shuting Jin , Yinghui Jiang , Xurui Jin , Bowen Tang , Zhangming Niu , Xiangrong Liu , Qiang Zhang , Xiangxiang Zeng , Stan Z. Li

In this paper, we propose a novel graph-based data augmentation method that can generally be applied to medical waveform data with graph structures. In the process of recording medical waveform data, such as electrocardiogram (ECG) or…

Machine Learning · Computer Science 2025-02-11 Kyung Geun Kim , Byeong Tak Lee
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