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Radiological images such as computed tomography (CT) and X-rays render anatomy with intrinsic structures. Being able to reliably locate the same anatomical structure across varying images is a fundamental task in medical image analysis. In…

Computer Vision and Pattern Recognition · Computer Science 2023-10-24 Ke Yan , Jinzheng Cai , Dakai Jin , Shun Miao , Dazhou Guo , Adam P. Harrison , Youbao Tang , Jing Xiao , Jingjing Lu , Le Lu

This work presents a proof-of-concept solution designed to improve the accuracy of radiographic feature characterisation in pre-surgical CT/MR volumes. The solution involves 3D co-location of 2D digital histology slides within ex-vivo,…

Image and Video Processing · Electrical Eng. & Systems 2025-03-05 Robert Phillips , Constantine Zakkaroff , Keren Dittmer , Nicholas Robillard , Kenzie Baer , Anthony Butler

The lack of fine-grained annotations hinders the deployment of automated diagnosis systems, which require human-interpretable justification for their decision process. In this paper, we address the problem of weakly supervised…

Computer Vision and Pattern Recognition · Computer Science 2022-10-10 Constantin Seibold , Jens Kleesiek , Heinz-Peter Schlemmer , Rainer Stiefelhagen

Visual localization is the task of estimating camera pose in a known scene, which is an essential problem in robotics and computer vision. However, long-term visual localization is still a challenge due to the environmental appearance…

Robotics · Computer Science 2022-12-02 Yuxuan Chen , Timothy D. Barfoot

Computed tomography has propelled scientific advances in fields from biology to materials science. This technology allows for the elucidation of 3-dimensional internal structure by the attenuation of x-rays through an object at different…

Computer Vision and Pattern Recognition · Computer Science 2022-11-02 Rey Mendoza , Minh Nguyen , Judith Weng Zhu , Vincent Dumont , Talita Perciano , Juliane Mueller , Vidya Ganapati

Semantic segmentation and activity classification are key components to creating intelligent surgical systems able to understand and assist clinical workflow. In the Operating Room, semantic segmentation is at the core of creating robots…

Computer Vision and Pattern Recognition · Computer Science 2024-07-09 Idris Hamoud , Alexandros Karargyris , Aidean Sharghi , Omid Mohareri , Nicolas Padoy

The technical advances in Computed Tomography (CT) allow to obtain immense amounts of 3D data. For such datasets it is very costly and time-consuming to obtain the accurate 3D segmentation markup to train neural networks. The annotation is…

Image and Video Processing · Electrical Eng. & Systems 2022-03-18 Yaroslav Zharov , Alexey Ershov , Tilo Baumbach , Vincent Heuveline

The amount of manually labeled data is limited in medical applications, so semi-supervised learning and automatic labeling strategies can be an asset for training deep neural networks. However, the quality of the automatically generated…

Machine Learning · Computer Science 2022-03-04 Wenhui Cui , Haleh Akrami , Anand A. Joshi , Richard M. Leahy

Object localisation, in the context of regular images, often depicts objects like people or cars. In these images, there is typically a relatively small number of objects per class, which usually is manageable to annotate. However, outside…

Machine Learning · Computer Science 2021-08-24 Andreas Panteli , Jonas Teuwen , Hugo Horlings , Efstratios Gavves

Training deep neural networks on large and sparse datasets is still challenging and can require large amounts of computation and memory. In this work, we address the task of performing semantic segmentation on large volumetric data sets,…

Computer Vision and Pattern Recognition · Computer Science 2018-07-09 Lorenz Berger , Eoin Hyde , Matt Gibb , Nevil Pavithran , Garin Kelly , Faiz Mumtaz , Sébastien Ourselin

Self-supervised learning has been widely used to obtain transferrable representations from unlabeled images. Especially, recent contrastive learning methods have shown impressive performances on downstream image classification tasks. While…

Computer Vision and Pattern Recognition · Computer Science 2021-04-29 Byungseok Roh , Wuhyun Shin , Ildoo Kim , Sungwoong Kim

Biomedical image segmentation plays a significant role in computer-aided diagnosis. However, existing CNN based methods rely heavily on massive manual annotations, which are very expensive and require huge human resources. In this work, we…

Computer Vision and Pattern Recognition · Computer Science 2023-01-13 Ruifei Zhang , Sishuo Liu , Yizhou Yu , Guanbin Li

Semantic segmentation is a crucial task in medical image processing, essential for segmenting organs or lesions such as tumors. In this study we aim to improve automated segmentation in CBCTs through multi-task learning. To evaluate effects…

Image and Video Processing · Electrical Eng. & Systems 2024-12-03 Maximilian Ernst Tschuchnig , Julia Coste-Marin , Philipp Steininger , Michael Gadermayr

Automatic body part recognition for CT slices can benefit various medical image applications. Recent deep learning methods demonstrate promising performance, with the requirement of large amounts of labeled images for training. The…

Computer Vision and Pattern Recognition · Computer Science 2018-03-08 Ke Yan , Le Lu , Ronald M. Summers

While data-driven approaches excel at many image analysis tasks, the performance of these approaches is often limited by a shortage of annotated data available for training. Recent work in semi-supervised learning has shown that meaningful…

Computer Vision and Pattern Recognition · Computer Science 2021-01-22 Mayank Golhar , Taylor L. Bobrow , MirMilad Pourmousavi Khoshknab , Simran Jit , Saowanee Ngamruengphong , Nicholas J. Durr

The rise of deep learning has introduced a transformative era in the field of image processing, particularly in the context of computed tomography. Deep learning has made a significant contribution to the field of industrial Computed…

Computer Vision and Pattern Recognition · Computer Science 2024-01-30 Yuzhong Zhou , Linda-Sophie Schneider , Fuxin Fan , Andreas Maier

Accurate and automatic organ segmentation from 3D radiological scans is an important yet challenging problem for medical image analysis. Specifically, the pancreas demonstrates very high inter-patient anatomical variability in both its…

Computer Vision and Pattern Recognition · Computer Science 2017-02-02 Holger R. Roth , Le Lu , Nathan Lay , Adam P. Harrison , Amal Farag , Andrew Sohn , Ronald M. Summers

Automatic localization and labeling of vertebra in 3D medical images plays an important role in many clinical tasks, including pathological diagnosis, surgical planning and postoperative assessment. However, the unusual conditions of…

Computer Vision and Pattern Recognition · Computer Science 2017-05-18 Dong Yang , Tao Xiong , Daguang Xu , Qiangui Huang , David Liu , S. Kevin Zhou , Zhoubing Xu , JinHyeong Park , Mingqing Chen , Trac D. Tran , Sang Peter Chin , Dimitris Metaxas , Dorin Comaniciu

Computerized Tomography assembly and system configuration are optimized for enhanced invertibility in sparse data reconstruction. Assembly generating maximum principal components/condition number of weight matrix is designated as best…

Instrumentation and Detectors · Physics 2023-10-02 Mayank Goswami

Self-supervised learning has proven to be an effective way to learn representations in domains where annotated labels are scarce, such as medical imaging. A widely adopted framework for this purpose is contrastive learning and it has been…

Computer Vision and Pattern Recognition · Computer Science 2024-02-23 Hugo Figueiras , Helena Aidos , Nuno Cruz Garcia