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Computed tomography (CT) is essential for treatment and diagnostics; In case CT are missing or otherwise difficult to obtain, methods for generating synthetic CT (sCT) images from magnetic resonance imaging (MRI) images are sought after.…

Image and Video Processing · Electrical Eng. & Systems 2025-09-29 Emily Honey , Anders Helbo , Jens Petersen

The synthesis of computed tomography (CT) from magnetic resonance imaging (MRI) and cone-beam CT (CBCT) plays a critical role in clinical treatment planning by enabling accurate anatomical representation in adaptive radiotherapy. In this…

Computer Vision and Pattern Recognition · Computer Science 2026-01-16 Siyuan Mei , Yan Xia , Fuxin Fan , Andreas Maier

In medical imaging, a general problem is that it is costly and time consuming to collect high quality data from healthy and diseased subjects. Generative adversarial networks (GANs) is a deep learning method that has been developed for…

Computer Vision and Pattern Recognition · Computer Science 2018-06-21 Per Welander , Simon Karlsson , Anders Eklund

Purpose: To assess the feasibility of deep learning-based high resolution synthetic CT generation from MRI scans of the lower arm for orthopedic applications. Methods: A conditional Generative Adversarial Network was trained to synthesize…

Computer Vision and Pattern Recognition · Computer Science 2019-01-25 Frank Zijlstra , Koen Willemsen , Mateusz C. Florkow , Ralph J. B. Sakkers , Harrie H. Weinans , Bart C. H. van der Wal , Marijn van Stralen , Peter R. Seevinck

Automated lesion segmentation from computed tomography (CT) is an important and challenging task in medical image analysis. While many advancements have been made, there is room for continued improvements. One hurdle is that CT images can…

Computer Vision and Pattern Recognition · Computer Science 2018-07-20 Youbao Tang , Jinzheng Cai , Le Lu , Adam P. Harrison , Ke Yan , Jing Xiao , Lin Yang , Ronald M. Summers

In this paper, we describe how to apply image-to-image translation techniques to medical blood smear data to generate new data samples and meaningfully increase small datasets. Specifically, given the segmentation mask of the microscopy…

Computer Vision and Pattern Recognition · Computer Science 2019-03-11 Oleksandr Bailo , DongShik Ham , Young Min Shin

Synthetic CT image generation from MRI scan is necessary to create radiotherapy plans without the need of co-registered MRI and CT scans. The chosen baseline adversarial model with cycle consistency permits unpaired image-to-image…

Image and Video Processing · Electrical Eng. & Systems 2023-08-16 Denis Prokopenko , Joël Valentin Stadelmann , Heinrich Schulz , Steffen Renisch , Dmitry V. Dylov

Data augmentation can effectively resolve a scarcity of images when training machine-learning algorithms. It can make them more robust to unseen images. We present a lesion conditional Generative Adversarial Network LcGAN to generate…

Image and Video Processing · Electrical Eng. & Systems 2020-08-10 Manohar Karki , Junghwan Cho , Seokhwan Ko

In many clinical settings, the use of both Computed Tomography (CT) and Magnetic Resonance (MRI) is necessary to pursue a thorough understanding of the patient's anatomy and to plan a suitable therapeutical strategy; this is often the case…

Image and Video Processing · Electrical Eng. & Systems 2024-07-16 Leonardo Crespi , Samuele Camnasio , Damiano Dei , Nicola Lambri , Pietro Mancosu , Marta Scorsetti , Daniele Loiacono

Recently image inpainting has witnessed rapid progress due to generative adversarial networks (GAN) that are able to synthesize realistic contents. However, most existing GAN-based methods for semantic inpainting apply an auto-encoder…

Computer Vision and Pattern Recognition · Computer Science 2017-12-22 Haofeng Li , Guanbin Li , Liang Lin , Yizhou Yu

Compared to traditional methods, Deep Learning (DL) becomes a key technology for computer vision tasks. Synthetic data generation is an interesting use case for DL, especially in the field of medical imaging such as Magnetic Resonance…

Computer Vision and Pattern Recognition · Computer Science 2025-11-04 Md Sumon Ali , Muzammil Behzad

Unsupervised image translation using adversarial learning has been attracting attention to improve the image quality of medical images. However, adversarial training based on the global evaluation values of discriminators does not provide…

Image and Video Processing · Electrical Eng. & Systems 2022-10-25 Takumi Hase , Megumi Nakao , Mitsuhiro Nakamura , Tetsuya Matsuda

Infarcted brain tissue resulting from acute stroke readily shows up as hyperintense regions within diffusion-weighted magnetic resonance imaging (DWI). It has also been proposed that computed tomography perfusion (CTP) could alternatively…

Image and Video Processing · Electrical Eng. & Systems 2019-05-01 Jonathan Rubin , S. Mazdak Abulnaga

Recently, interest in MR-only treatment planning using synthetic CTs (synCTs) has grown rapidly in radiation therapy. However, developing class solutions for medical images that contain atypical anatomy remains a major limitation. In this…

Image and Video Processing · Electrical Eng. & Systems 2021-04-16 Hajar Emami , Ming Dong , Carri K. Glide-Hurst

A Magnetic Resonance Imaging (MRI) exam typically consists of the acquisition of multiple MR pulse sequences, which are required for a reliable diagnosis. Each sequence can be parameterized through multiple acquisition parameters affecting…

Image and Video Processing · Electrical Eng. & Systems 2022-02-23 Jonas Denck , Jens Guehring , Andreas Maier , Eva Rothgang

This paper strives to generate a synthetic computed tomography (CT) image from a magnetic resonance (MR) image. The synthetic CT image is valuable for radiotherapy planning when only an MR image is available. Recent approaches have made…

Image and Video Processing · Electrical Eng. & Systems 2021-07-20 Zenglin Shi , Pascal Mettes , Guoyan Zheng , Cees Snoek

Attenuation correction is an essential requirement of positron emission tomography (PET) image reconstruction to allow for accurate quantification. However, attenuation correction is particularly challenging for PET-MRI as neither PET nor…

Deep neural networks (DNN) are commonly used to denoise and sharpen X-ray computed tomography (CT) images with the goal of reducing patient X-ray dosage while maintaining reconstruction quality. However, naive application of DNN-based…

Image and Video Processing · Electrical Eng. & Systems 2023-12-22 Madhuri Nagare , Gregery T. Buzzard , Charles A. Bouman

Accurate identification and localization of abnormalities from radiology images serve as a critical role in computer-aided diagnosis (CAD) systems. Building a highly generalizable system usually requires a large amount of data with…

Image and Video Processing · Electrical Eng. & Systems 2021-10-26 Euyoung Kim , Soochahn Lee , Kyoung Mu Lee

Humans can imagine a scene from a sound. We want machines to do so by using conditional generative adversarial networks (GANs). By applying the techniques including spectral norm, projection discriminator and auxiliary classifier, compared…

Computation and Language · Computer Science 2018-08-14 Chia-Hung Wan , Shun-Po Chuang , Hung-Yi Lee