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相关论文: Synthetic CT image generation from CBCT: A Systema…

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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…

计算机视觉与模式识别 · 计算机科学 2018-07-24 Avi Ben-Cohen , Eyal Klang , Stephen P. Raskin , Shelly Soffer , Simona Ben-Haim , Eli Konen , Michal Marianne Amitai , Hayit Greenspan

Computed tomography (CT) has been developed as a non-destructive technique for observing minute internal images of samples. It has been difficult to obtain photo-realistic (clean or clear) CT images due to various unwanted artifacts…

量子物理 · 物理学 2023-09-12 Kyungtaek Jun

In Europe the 20% of the CT scans cover the thoracic region. The acquired images contain information about the cardiovascular system that often remains latent due to the lack of contrast in the cardiac area. On the other hand, the contrast…

Proton computed tomography (pCT) is a novel medical imaging modality for mapping the distribution of proton relative stopping power (RSP) in medical objects of interest. Compared to conventional X-ray computed tomography, where range…

Cone-beam computed tomography (CBCT) images are problematic in clinical medicine because of their low contrast and high artifact content compared with conventional CT images. Although there are some studies to improve image quality, in…

图像与视频处理 · 电气工程与系统科学 2026-03-30 Naruki Murahashi , Mitsuhiro Nakamura , Megumi Nakao

Medical image synthesis has gained a great focus recently, especially after the introduction of Generative Adversarial Networks (GANs). GANs have been used widely to provide anatomically-plausible and diverse samples for augmentation and…

图像与视频处理 · 电气工程与系统科学 2020-02-07 Basel Alyafi , Oliver Diaz , Joan C Vilanova , Javier del Riego , Robert Marti

CBCTs in image-guided radiotherapy provide crucial anatomy information for patient setup and plan evaluation. Longitudinal CBCT image registration could quantify the inter-fractional anatomic changes. The purpose of this study is to propose…

图像与视频处理 · 电气工程与系统科学 2023-04-26 Huiqiao Xie , Yang Lei , Yabo Fu , Tonghe Wang , Justin Roper , Jeffrey D. Bradley , Pretesh Patel , Tian Liu , Xiaofeng Yang

Radiomics is a rapidly growing field that deals with modeling the textural information present in the different tissues of interest for clinical decision support. However, the process of generating radiomic images is computationally very…

计算机视觉与模式识别 · 计算机科学 2019-05-30 Vishwa S. Parekh , Michael A. Jacobs

Computed tomography (CT) is increasingly being used for cancer screening, such as early detection of lung cancer. However, CT studies have varying pixel spacing due to differences in acquisition parameters. Thick slice CTs have lower…

计算机视觉与模式识别 · 计算机科学 2018-07-19 Meng Li , Shiwen Shen , Wen Gao , William Hsu , Jason Cong

Cone-beam computed tomography (CBCT) is an important tool facilitating computer aided interventions, despite often suffering from artifacts that pose challenges for accurate interpretation. While the degraded image quality can affect…

图像与视频处理 · 电气工程与系统科学 2024-07-02 Maximilian E. Tschuchnig , Philipp Steininger , Michael Gadermayr

Coronavirus disease 2019 (COVID-19) is an ongoing global pandemic that has spread rapidly since December 2019. Real-time reverse transcription polymerase chain reaction (rRT-PCR) and chest computed tomography (CT) imaging both play an…

图像与视频处理 · 电气工程与系统科学 2020-12-04 Yifan Jiang , Han Chen , Murray Loew , Hanseok Ko

Brain segmentation from neonatal MRI images is a very challenging task due to large changes in the shape of cerebral structures and variations in signal intensities reflecting the gestational process. In this context, there is a clear need…

机器学习 · 统计学 2023-09-12 R Valabregue , F Girka , A Pron , F Rousseau , G Auzias

Cross modal image syntheses is gaining significant interests for its ability to estimate target images of a different modality from a given set of source images,like estimating MR to MR, MR to CT, CT to PET etc, without the need for an…

计算机视觉与模式识别 · 计算机科学 2018-07-02 Deepa Gunashekar , Sailesh Conjeti , Abhijit Guha Roy , Nassir Navab , Kuangyu Shi

Cone-beam computed tomography (CBCT) is widely used for image-guided radiotherapy (IGRT). It provides real time visualization at low cost and dose. However, photon scattering and beam hindrance cause artifacts in CBCT. These include…

医学物理 · 物理学 2025-09-29 Alzahra Altalib , Chunhui Li , Alessandro Perelli

Objective: Four-dimensional computed tomography (4DCT) imaging consists in reconstructing a CT acquisition into multiple phases to track internal organ and tumor motion. It is commonly used in radiotherapy treatment planning to establish…

计算机视觉与模式识别 · 计算机科学 2024-04-02 Yi-Heng Cao , Vincent Bourbonne , François Lucia , Ulrike Schick , Julien Bert , Vincent Jaouen , Dimitris Visvikis

In medical imaging, radiological scans of different modalities serve to enhance different sets of features for clinical diagnosis and treatment planning. This variety enriches the source information that could be used for outcome…

图像与视频处理 · 电气工程与系统科学 2020-06-01 William Le , Francisco Perdigón Romero , Samuel Kadoury

Purpose: To systematically investigate the influence of various data consistency layers, (semi-)supervised learning and ensembling strategies, defined in a $\Sigma$-net, for accelerated parallel MR image reconstruction using deep learning.…

图像与视频处理 · 电气工程与系统科学 2019-12-20 Kerstin Hammernik , Jo Schlemper , Chen Qin , Jinming Duan , Ronald M. Summers , Daniel Rueckert

Sketch portrait generation benefits a wide range of applications such as digital entertainment and law enforcement. Although plenty of efforts have been dedicated to this task, several issues still remain unsolved for generating vivid and…

计算机视觉与模式识别 · 计算机科学 2017-10-05 Dongyu Zhang , Liang Lin , Tianshui Chen , Xian Wu , Wenwei Tan , Ebroul Izquierdo

Computer-aided tumor detection has shown great potential in enhancing the interpretation of over 80 million CT scans performed annually in the United States. However, challenges arise due to the rarity of CT scans with tumors, especially…

图像与视频处理 · 电气工程与系统科学 2024-09-11 Qi Chen , Yuxiang Lai , Xiaoxi Chen , Qixin Hu , Alan Yuille , Zongwei Zhou

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…

图像与视频处理 · 电气工程与系统科学 2025-09-09 Kang Chen , Bin Huang , Xuebin Yang , Junyan Zhang , Yongbo Wang , Qiegen Liu