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The application of 3D ViTs to medical image segmentation has seen remarkable strides, somewhat overshadowing the budding advancements in Convolutional Neural Network (CNN)-based models. Large kernel depthwise convolution has emerged as a…

Computer Vision and Pattern Recognition · Computer Science 2023-10-05 Ho Hin Lee , Quan Liu , Qi Yang , Xin Yu , Shunxing Bao , Yuankai Huo , Bennett A. Landman

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…

In this paper, we study the problem of learning Graph Convolutional Networks (GCNs) for regression. Current architectures of GCNs are limited to the small receptive field of convolution filters and shared transformation matrix for each…

Computer Vision and Pattern Recognition · Computer Science 2020-03-10 Long Zhao , Xi Peng , Yu Tian , Mubbasir Kapadia , Dimitris N. Metaxas

The convolutional neural network-based methods have become more and more popular for medical image segmentation due to their outstanding performance. However, they struggle with capturing long-range dependencies, which are essential for…

Image and Video Processing · Electrical Eng. & Systems 2024-01-30 Hongkun Sun , Jing Xu , Yuping Duan

Generative models for 3D geometric data arise in many important applications in 3D computer vision and graphics. In this paper, we focus on 3D deformable shapes that share a common topological structure, such as human faces and bodies.…

Computer Vision and Pattern Recognition · Computer Science 2023-09-26 Giorgos Bouritsas , Sergiy Bokhnyak , Stylianos Ploumpis , Michael Bronstein , Stefanos Zafeiriou

Registration is a fundamental task in medical robotics and is often a crucial step for many downstream tasks such as motion analysis, intra-operative tracking and image segmentation. Popular registration methods such as ANTs and NiftyReg…

Computer Vision and Pattern Recognition · Computer Science 2021-03-26 Wentao Zhu , Yufang Huang , Daguang Xu , Zhen Qian , Wei Fan , Xiaohui Xie

Accurate registration of medical images is vital for doctor's diagnosis and quantitative analysis. In this paper, we propose a new deformable medical image registration method based on average geometric transformations and VoxelMorph CNN…

Computer Vision and Pattern Recognition · Computer Science 2019-07-24 Yongpei Zhu , Zicong Zhou , Guojun Liao , Kehong Yuan

When solving a segmentation task, shaped-base methods can be beneficial compared to pixelwise classification due to geometric understanding of the target object as shape, preventing the generation of anatomical implausible predictions in…

Computer Vision and Pattern Recognition · Computer Science 2024-07-30 Ron Keuth , Mattias Heinrich

Abdominal organ segmentation from CT and MRI is an essential prerequisite for surgical planning and computer-aided navigation systems. It is challenging due to the high variability in the shape, size, and position of abdominal organs.…

Computer Vision and Pattern Recognition · Computer Science 2023-10-31 Fabian Bongratz , Anne-Marie Rickmann , Christian Wachinger

Purpose: This study aims to explore training strategies to improve convolutional neural network-based image-to-image deformable registration for abdominal imaging. Methods: Different training strategies, loss functions, and transfer…

Image and Video Processing · Electrical Eng. & Systems 2023-02-28 Javier Pérez de Frutos , André Pedersen , Egidijus Pelanis , David Bouget , Shanmugapriya Survarachakan , Thomas Langø , Ole-Jakob Elle , Frank Lindseth

Transformers have demonstrated remarkable performance in natural language processing and computer vision. However, existing vision Transformers struggle to learn from limited medical data and are unable to generalize on diverse medical…

Image and Video Processing · Electrical Eng. & Systems 2023-04-06 Yunhe Gao , Mu Zhou , Di Liu , Zhennan Yan , Shaoting Zhang , Dimitris N. Metaxas

Automatic multi-organ segmentation of the dual energy computed tomography (DECT) data can be beneficial for biomedical research and clinical applications. However, it is a challenging task. Recent advances in deep learning showed the…

Computer Vision and Pattern Recognition · Computer Science 2017-10-17 Shuqing Chen , Holger Roth , Sabrina Dorn , Matthias May , Alexander Cavallaro , Michael M. Lell , Marc Kachelrieß , Hirohisa Oda , Kensaku Mori , Andreas Maier

The distance-geometric graph representation adopts a unified scheme (distance) for representing the geometry of three-dimensional(3D) graphs. It is invariant to rotation and translation of the graph and it reflects pair-wise node…

Computer Vision and Pattern Recognition · Computer Science 2021-03-23 Daniel T. Chang

We propose a method to non-rigidly align a three-dimensional (3D) volumetric image with a two-dimensional (2D) planar image representing a projection of the deformed volume. The application in mind comes from biological studies in which 2D…

Optimization and Control · Mathematics 2021-01-12 Paul Striewski , Benedikt Wirth

Deep learning-based 3-dimensional (3D) shape reconstruction from 2-dimensional (2D) magnetic resonance imaging (MRI) has become increasingly important in medical disease diagnosis, treatment planning, and computational modeling. This review…

Machine Learning · Computer Science 2025-10-03 Emma McMillian , Abhirup Banerjee , Alfonso Bueno-Orovio

Deformable image registration and regression are important tasks in medical image analysis. However, they are computationally expensive, especially when analyzing large-scale datasets that contain thousands of images. Hence, cluster…

Computer Vision and Pattern Recognition · Computer Science 2017-11-17 Zhipeng Ding , Greg Fleishman , Xiao Yang , Paul Thompson , Roland Kwitt , Marc Niethammer

The shapes and morphology of the organs and tissues are important prior knowledge in medical imaging recognition and segmentation. The morphological operation is a well-known method for morphological feature extraction. As the morphological…

Computer Vision and Pattern Recognition · Computer Science 2021-03-09 Chentian Li , Chi Ma , William W. Lu

Real-time 3D navigation during minimally invasive procedures is an essential yet challenging task, especially when considerable tissue motion is involved. To balance image acquisition speed and resolution, only 2D images or low-resolution…

Computer Vision and Pattern Recognition · Computer Science 2018-01-03 Xiao-Yun Zhou , Guang-Zhong Yang , Su-Lin Lee

Over the past two decades, machine analysis of medical imaging has advanced rapidly, opening up significant potential for several important medical applications. As complicated diseases increase and the number of cases rises, the role of…

Image and Video Processing · Electrical Eng. & Systems 2024-05-08 Fares Bougourzi , Fadi Dornaika , Cosimo Distante , Abdelmalik Taleb-Ahmed

As a fundamental part of computational healthcare, Computer Tomography (CT) and Magnetic Resonance Imaging (MRI) provide volumetric data, making the development of algorithms for 3D image analysis a necessity. Despite being computationally…

Image and Video Processing · Electrical Eng. & Systems 2023-07-26 C. I. Ugwu , S. Casarin , O. Lanz