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Related papers: Deep MR to CT Synthesis using Unpaired Data

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Background: In MR-guided proton therapy planning, aligning MR and CT images is key for MR-based CT synthesis, especially in mobile regions like the head-and-neck. Misalignments here can lead to less accurate synthetic CT (sCT) images,…

To enable magnetic resonance (MR)-only radiotherapy and facilitate modelling of radiation attenuation in humans, synthetic-CT (sCT) images need to be generated. Considering the application of MR-guided radiotherapy and online adaptive…

The ability to synthesise Computed Tomography images - commonly known as pseudo CT, or pCT - from MRI input data is commonly assessed using an intensity-wise similarity, such as an L2-norm between the ground truth CT and the pCT. However,…

Image and Video Processing · Electrical Eng. & Systems 2020-04-15 Kerstin Kläser , Thomas Varsavsky , Pawel Markiewicz , Tom Vercauteren , David Atkinson , Kris Thielemans , Brian Hutton , M Jorge Cardoso , Sebastien Ourselin

Purpose: To assess whether a generative adversarial network (GAN) could synthesize realistic optical coherence tomography (OCT) images that satisfactorily serve as the educational images for retinal specialists and the training datasets for…

Medical Physics · Physics 2020-06-02 Ce Zheng , Xiaolin Xie , Kang Zhou , Bang Chen , Jili Chen , Haiyun Ye , Wen Li , Tong Qiao , Shenghua Gao , Jianlong Yang , Jiang Liu

Deep learning has significant potential for medical imaging. However, since the incident rate of each disease varies widely, the frequency of classes in a medical image dataset is imbalanced, leading to poor accuracy for such infrequent…

Computer Vision and Pattern Recognition · Computer Science 2018-12-06 Tatsuki Koga , Naoki Nonaka , Jun Sakuma , Jun Seita

Convolutional Neural Networks (CNNs) can play a key role in Medical Image Analysis under large-scale annotated datasets. However, preparing such massive dataset is demanding. In this context, Generative Adversarial Networks (GANs) can…

Image and Video Processing · Electrical Eng. & Systems 2021-06-04 Changhee Han

Magnetic Resonance Imaging (MRI) of the brain has been used to investigate a wide range of neurological disorders, but data acquisition can be expensive, time-consuming, and inconvenient. Multi-site studies present a valuable opportunity to…

Computer Vision and Pattern Recognition · Computer Science 2018-04-13 Harrison Nguyen , Richard W. Morris , Anthony W. Harris , Mayuresh S. Korgoankar , Fabio Ramos

Magnetic resonance imaging (MRI) noninvasively provides critical information about how human brain structures develop across stages of life. Developmental scientists are particularly interested in the first few years of neurodevelopment.…

Image and Video Processing · Electrical Eng. & Systems 2021-05-31 Xuzhe Zhang , Xinzi He , Jia Guo , Nabil Ettehadi , Natalie Aw , David Semanek , Jonathan Posner , Andrew Laine , Yun Wang

One of the biggest issues facing the use of machine learning in medical imaging is the lack of availability of large, labelled datasets. The annotation of medical images is not only expensive and time consuming but also highly dependent on…

Artificial Intelligence (AI)-based models can help in diagnosing COVID-19 from lung CT scans and X-ray images; however, these models require large amounts of data for training and validation. Many researchers studied Generative Adversarial…

Image and Video Processing · Electrical Eng. & Systems 2023-04-10 Hazrat Ali , Christer Gronlund , Zubair Shah

A major challenge in applying deep learning to medical imaging is the paucity of annotated data. This study demonstrates that synthetic colonoscopy images generated by Generative Adversarial Network (GAN) inversion can be used as training…

Image and Video Processing · Electrical Eng. & Systems 2025-07-02 Mayank Golhar , Taylor L. Bobrow , Saowanee Ngamruengphong , Nicholas J. Durr

The paper proposes a method to effectively fuse multi-exposure inputs and generate high-quality high dynamic range (HDR) images with unpaired datasets. Deep learning-based HDR image generation methods rely heavily on paired datasets. The…

Image and Video Processing · Electrical Eng. & Systems 2022-07-18 Ru Li , Chuan Wang , Jue Wang , Guanghui Liu , Heng-Yu Zhang , Bing Zeng , Shuaicheng Liu

Synthetic images rendered from 3D CAD models are useful for augmenting training data for object recognition algorithms. However, the generated images are non-photorealistic and do not match real image statistics. This leads to a large…

Computer Vision and Pattern Recognition · Computer Science 2017-03-21 Xingchao Peng , Kate Saenko

Deformable Image Registration (DIR) of MR and CT images is one of the most challenging registration task, due to the inherent structural differences of the modalities and the missing dense ground truth. Recently cycle Generative Adversarial…

Computer Vision and Pattern Recognition · Computer Science 2018-07-20 Christine Tanner , Firat Ozdemir , Romy Profanter , Valeriy Vishnevsky , Ender Konukoglu , Orcun Goksel

In many applications of deep learning, particularly those in image restoration, it is either very difficult, prohibitively expensive, or outright impossible to obtain paired training data precisely as in the real world. In such cases, one…

Computer Vision and Pattern Recognition · Computer Science 2018-11-20 Bolin Liu , Xiao Shu , Xiaolin Wu

Deep learning approaches heavily rely on high-quality human supervision which is nonetheless expensive, time-consuming, and error-prone, especially for image segmentation task. In this paper, we propose a method to automatically synthesize…

Computer Vision and Pattern Recognition · Computer Science 2021-12-06 Yu Yang , Hakan Bilen , Qiran Zou , Wing Yin Cheung , Xiangyang Ji

There remains an important need for the development of image reconstruction methods that can produce diagnostically useful images from undersampled measurements. In magnetic resonance imaging (MRI), for example, such methods can facilitate…

Image and Video Processing · Electrical Eng. & Systems 2021-06-28 Varun A. Kelkar , Sayantan Bhadra , Mark A. Anastasio

Deep learning approaches based on convolutional neural networks (CNNs) have been successful in solving a number of problems in medical imaging, including image segmentation. In recent years, it has been shown that CNNs are vulnerable to…

Image and Video Processing · Electrical Eng. & Systems 2019-09-26 Liang Chen , Paul Bentley , Kensaku Mori , Kazunari Misawa , Michitaka Fujiwara , Daniel Rueckert

Magnetic Resonance (MR) images of different modalities can provide complementary information for clinical diagnosis, but whole modalities are often costly to access. Most existing methods only focus on synthesizing missing images between…

Computer Vision and Pattern Recognition · Computer Science 2020-05-05 Bingyu Xin , Yifan Hu , Yefeng Zheng , Hongen Liao

Text-to-image synthesis refers to computational methods which translate human written textual descriptions, in the form of keywords or sentences, into images with similar semantic meaning to the text. In earlier research, image synthesis…

Computer Vision and Pattern Recognition · Computer Science 2019-10-22 Jorge Agnese , Jonathan Herrera , Haicheng Tao , Xingquan Zhu
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