Search Results for author: Bartlomiej W. Papiez

Found 9 papers, 2 papers with code

Paired Diffusion: Generation of related, synthetic PET-CT-Segmentation scans using Linked Denoising Diffusion Probabilistic Models

no code implementations26 Mar 2024 Rowan Bradbury, Katherine A. Vallis, Bartlomiej W. Papiez

The rapid advancement of Artificial Intelligence (AI) in biomedical imaging and radiotherapy is hindered by the limited availability of large imaging data repositories.

Denoising

Multi-Task Cooperative Learning via Searching for Flat Minima

no code implementations21 Sep 2023 Fuping Wu, Le Zhang, Yang Sun, Yuanhan Mo, Thomas Nichols, Bartlomiej W. Papiez

In this work, we propose to formulate MTL as a multi/bi-level optimization problem, and therefore force features to learn from each task in a cooperative approach.

Multi-Task Learning

VertXNet: An Ensemble Method for Vertebrae Segmentation and Identification of Spinal X-Ray

no code implementations7 Feb 2023 Yao Chen, Yuanhan Mo, Aimee Readie, Gregory Ligozio, Indrajeet Mandal, Faiz Jabbar, Thibaud Coroller, Bartlomiej W. Papiez

Our experimental results have shown that the proposed pipeline outperformed two SOTA segmentation models on our test dataset (MEASURE 1) with a mean Dice of 0. 90, vs. a mean Dice of 0. 73 for Mask R-CNN and 0. 72 for U-Net.

Segmentation

VertXNet: Automatic Segmentation and Identification of Lumbar and Cervical Vertebrae from Spinal X-ray Images

no code implementations12 Jul 2022 Yao Chen, Yuanhan Mo, Aimee Readie, Gregory Ligozio, Thibaud Coroller, Bartlomiej W. Papiez

Manual annotation of vertebrae on spinal X-ray imaging is costly and time-consuming due to bone shape complexity and image quality variations.

Segmentation

Residual Aligner Network

1 code implementation7 Mar 2022 Jian-Qing Zheng, Ziyang Wang, Baoru Huang, Ngee Han Lim, Bartlomiej W. Papiez

Image registration is important for medical imaging, the estimation of the spatial transformation between different images.

Image Registration

D-Net: Siamese based Network with Mutual Attention for Volume Alignment

3 code implementations25 Jan 2021 Jian-Qing Zheng, Ngee Han Lim, Bartlomiej W. Papiez

Alignment of contrast and non-contrast-enhanced imaging is essential for the quantification of changes in several biomedical applications.

Affine Image Registration Computed Tomography (CT) +3

Automated fetal brain extraction from clinical Ultrasound volumes using 3D Convolutional Neural Networks

no code implementations18 Nov 2019 Felipe Moser, Ruobing Huang, Aris T. Papageorghiou, Bartlomiej W. Papiez, Ana I. L. Namburete

To improve the performance of most neuroimiage analysis pipelines, brain extraction is used as a fundamental first step in the image processing.

Pieces-of-parts for supervoxel segmentation with global context: Application to DCE-MRI tumour delineation

no code implementations18 Apr 2016 Benjamin Irving, James M Franklin, Bartlomiej W. Papiez, Ewan M Anderson, Ricky A Sharma, Fergus V Gleeson, Sir Michael Brady, Julia A. Schnabel

Rectal tumour segmentation in dynamic contrast-enhanced MRI (DCE-MRI) is a challenging task, and an automated and consistent method would be highly desirable to improve the modelling and prediction of patient outcomes from tissue contrast enhancement characteristics - particularly in routine clinical practice.

Segmentation

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