English
Related papers

Related papers: Eliminating Registration Bias in Synthetic CT Gene…

200 papers

In computed tomography (CT), the projection geometry used for data acquisition needs to be known precisely to obtain a clear reconstructed image. Rigid patient motion is a cause for misalignment between measured data and employed geometry.…

Image and Video Processing · Electrical Eng. & Systems 2023-02-14 Mareike Thies , Fabian Wagner , Noah Maul , Laura Pfaff , Linda-Sophie Schneider , Christopher Syben , Andreas Maier

Simulation is increasingly being used for generating large labelled datasets in many machine learning problems. Recent methods have focused on adjusting simulator parameters with the goal of maximising accuracy on a validation task, usually…

Computer Vision and Pattern Recognition · Computer Science 2020-08-20 Harkirat Singh Behl , Atılım Güneş Baydin , Ran Gal , Philip H. S. Torr , Vibhav Vineet

How to generate the ground-truth (GT) image is a critical issue for training realistic image super-resolution (Real-ISR) models. Existing methods mostly take a set of high-resolution (HR) images as GTs and apply various degradations to…

Computer Vision and Pattern Recognition · Computer Science 2023-03-24 Du Chen , Jie Liang , Xindong Zhang , Ming Liu , Hui Zeng , Lei Zhang

This paper aims to tackle the issues on unavailable or insufficient clinical US data and meaningful annotation to enable bone segmentation and registration for US-guided spinal surgery. While the US is not a standard paradigm for spinal…

Image and Video Processing · Electrical Eng. & Systems 2024-10-28 Ang Li , Jiayi Han , Yongjian Zhao , Keyu Li , Li Liu

In this work we present a novel system for generation of virtual PET images using CT scans. We combine a fully convolutional network (FCN) with a conditional generative adversarial network (GAN) to generate simulated PET data from given…

Computer Vision and Pattern Recognition · Computer Science 2018-07-24 Avi Ben-Cohen , Eyal Klang , Stephen P. Raskin , Shelly Soffer , Simona Ben-Haim , Eli Konen , Michal Marianne Amitai , Hayit Greenspan

For extending CT field-of-view to perform non-destructive testing, the Symmetric Multi-Linear trajectory Computed Tomography (SMLCT) has been developed as a successful example of non-standard CT scanning modes. However, inevitable geometric…

Computer Vision and Pattern Recognition · Computer Science 2024-08-28 Zhisheng Wang , Yanxu Sun , Shangyu Li , Legeng Lin , Shunli Wang , Junning Cui

Synthetic CT projection data is crucial for advancing imaging research, yet its generation remains challenging. Current image domain methods are limited as they cannot simulate the physical acquisition process or utilize the complete…

Image and Video Processing · Electrical Eng. & Systems 2025-09-09 Kang Chen , Bin Huang , Xuebin Yang , Junyan Zhang , Yongbo Wang , Qiegen Liu

This paper proposes a robust longitudinal registration method for Contrast Enhanced Spectral Mammography in monitoring neoadjuvant chemotherapy. Because breast texture intensity changes with the treatment, a non-rigid registration procedure…

While synthetic data hold great promise for privacy protection, their statistical analysis poses significant challenges that necessitate innovative solutions. The use of deep generative models (DGMs) for synthetic data generation is known…

In this work, we conducted a survey on different registration algorithms and investigated their suitability for hyperspectral historical image registration applications. After the evaluation of different algorithms, we choose an intensity…

Computer Vision and Pattern Recognition · Computer Science 2017-12-14 AmirAbbas Davari , Tobias Lindenberger , Armin Häberle , Vincent Christlein , Andreas Maier , Christian Riess

The reconstruction of images from their corresponding noisy Radon transform is a typical example of an ill-posed linear inverse problem as arising in the application of computerized tomography (CT). As the (naive) solution does not depend…

Chest x-rays are a vital tool in the workup of many patients. Similar to most medical imaging modalities, they are profoundly multi-modal and are capable of visualising a variety of combinations of conditions. There is an ever pressing need…

Image and Video Processing · Electrical Eng. & Systems 2021-06-08 Bradley Segal , David M. Rubin , Grace Rubin , Adam Pantanowitz

Current text conditioned image generation methods output realistic looking images, but they fail to capture specific styles. Simply finetuning them on the target style datasets still struggles to grasp the style features. In this work, we…

Computer Vision and Pattern Recognition · Computer Science 2025-11-04 Serkan Ozturk , Samet Hicsonmez , Pinar Duygulu

We present a method for synthesizing naturally looking images of multiple people interacting in a specific scenario. These images benefit from the advantages of synthetic data: being fully controllable and fully annotated with any type of…

Computer Vision and Pattern Recognition · Computer Science 2020-06-04 Igor Kviatkovsky , Nadav Bhonker , Gerard Medioni

CBCT images suffer from acute shading artifacts primarily due to scatter. Numerous image-domain correction algorithms have been proposed in the literature that use patient-specific planning CT images to estimate shading contributions in…

Computer Vision and Pattern Recognition · Computer Science 2018-01-18 Awais Ashfaq , Jonas Adler

Computed tomography is a method for synthesizing volumetric or cross-sectional images of an object from a collection of projections. Popular reconstruction methods for computed tomography are based on idealized models and assumptions that…

Numerical Analysis · Mathematics 2022-03-03 Frederik H. Pedersen , Jakob S. Jørgensen , Martin S. Andersen

Model-based treatment planning for transcranial ultrasound therapy typically involves mapping the acoustic properties of the skull from an x-ray computed tomography (CT) image of the head. Here, three methods for generating pseudo-CT images…

Currently, MRI-only radiotherapy (RT) eliminates some of the concerns about using CT images in RT chains such as the registration of MR images to a separate CT, extra dose delivery, and the additional cost of repeated imaging. However, one…

Medical Physics · Physics 2021-03-03 Faeze Gholamiankhah , Samaneh Mostafapour , Hossein Arabi

Electron density maps must be accurately estimated to achieve valid dose calculation in MR-only radiotherapy. The goal of this study is to assess whether two deep learning models, the conditional generative adversarial network (cGAN) and…

Visual recognition models are prone to learning spurious correlations induced by a biased training set where certain conditions $B$ (\eg, Indoors) are over-represented in certain classes $Y$ (\eg, Big Dogs). Synthetic data from…

Computer Vision and Pattern Recognition · Computer Science 2024-07-18 Maan Qraitem , Kate Saenko , Bryan A. Plummer
‹ Prev 1 8 9 10 Next ›