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Attenuation compensation (AC) is beneficial for visual interpretation tasks in single-photon emission computed tomography (SPECT) myocardial perfusion imaging (MPI). However, traditional AC methods require the availability of a transmission…

医学物理 · 物理学 2023-03-21 Zitong Yu , Md Ashequr Rahman , Craig K. Abbey , Barry A. Siegel , Abhinav K. Jha

Deep learning architecture with convolutional neural network (CNN) achieves outstanding success in the field of computer vision. Where U-Net, an encoder-decoder architecture structured by CNN, makes a great breakthrough in biomedical image…

图像与视频处理 · 电气工程与系统科学 2023-02-13 Qing Xu , Zhicheng Ma , Na HE , Wenting Duan

The detection of lesions in magnetic resonance imaging (MRI)-scans of human brains remains challenging, time-consuming and error-prone. Recently, unsupervised anomaly detection (UAD) methods have shown promising results for this task. These…

图像与视频处理 · 电气工程与系统科学 2022-04-13 Finn Behrendt , Marcel Bengs , Frederik Rogge , Julia Krüger , Roland Opfer , Alexander Schlaefer

The acquisition conditions for low-dose and high-dose CT images are usually different, so that the shifts in the CT numbers often occur. Accordingly, unsupervised deep learning-based approaches, which learn the target image distribution,…

图像与视频处理 · 电气工程与系统科学 2022-07-15 Chanyong Jung , Joonhyung Lee , Sunkyoung You , Jong Chul Ye

Computed Tomography (CT) is one of the most popular modalities for medical imaging. By far, CT images have contributed to the largest publicly available datasets for volumetric medical segmentation tasks, covering full-body anatomical…

图像与视频处理 · 电气工程与系统科学 2024-11-25 Jin Ye , Ying Chen , Yanjun Li , Haoyu Wang , Zhongying Deng , Ziyan Huang , Yanzhou Su , Chenglong Ma , Yuanfeng Ji , Junjun He

Deep learning techniques have shown great potential in medical image processing, particularly through accurate and reliable image segmentation on magnetic resonance imaging (MRI) scans or computed tomography (CT) scans, which allow the…

图像与视频处理 · 电气工程与系统科学 2022-05-10 Yang Liu , Ersi Zhang , Lulu Xu , Chufan Xiao , Xiaoyun Zhong , Lijin Lian , Fang Li , Bin Jiang , Yuhan Dong , Lan Ma , Qiming Huang , Ming Xu , Yongbing Zhang , Dongmei Yu , Chenggang Yan , Peiwu Qin

Consistency learning using input image, feature, or network perturbations has shown remarkable results in semi-supervised semantic segmentation, but this approach can be seriously affected by inaccurate predictions of unlabelled training…

计算机视觉与模式识别 · 计算机科学 2022-03-29 Yuyuan Liu , Yu Tian , Yuanhong Chen , Fengbei Liu , Vasileios Belagiannis , Gustavo Carneiro

Consistency regularization and pseudo labeling-based semi-supervised methods perform co-training using the pseudo labels from multi-view inputs. However, such co-training models tend to converge early to a consensus, degenerating to the…

计算机视觉与模式识别 · 计算机科学 2023-05-29 Zhiqiang Shen , Peng Cao , Hua Yang , Xiaoli Liu , Jinzhu Yang , Osmar R. Zaiane

Facial manipulation by deep fake has caused major security risks and raised severe societal concerns. As a countermeasure, a number of deep fake detection methods have been proposed recently. Most of them model deep fake detection as a…

计算机视觉与模式识别 · 计算机科学 2022-04-12 Aakash Varma Nadimpalli , Ajita Rattani

Purpose: Scatter artifacts drastically degrade the image quality of cone-beam computed tomography (CBCT) scans. Although deep learning-based methods show promise in estimating scatter from CBCT measurements, their deployment in mobile CBCT…

信号处理 · 电气工程与系统科学 2025-09-12 Harshit Agrawal , Ari Hietanen , Simo Särkkä

Computed tomography (CT) images containing metallic objects commonly show severe streaking and shadow artifacts. Metal artifacts are caused by nonlinear beam-hardening effects combined with other factors such as scatter and Poisson noise.…

医学物理 · 物理学 2017-08-02 Hyung Suk Park , Sung Min Lee , Hwa Pyung Kim , Jin Keun Seo

Unsupervised anomaly detection (UAD) methods are trained with normal (or healthy) images only, but during testing, they are able to classify normal and abnormal (or disease) images. UAD is an important medical image analysis (MIA) method to…

图像与视频处理 · 电气工程与系统科学 2023-08-16 Yu Tian , Fengbei Liu , Guansong Pang , Yuanhong Chen , Yuyuan Liu , Johan W. Verjans , Rajvinder Singh , Gustavo Carneiro

Photoacoustic imaging (PAI) is a promising approach to realize in vivo transcranial cerebral vascular imaging. However, the strong attenuation and distortion of the photoacoustic wave caused by the thick porous skull greatly affect the…

医学物理 · 物理学 2022-08-16 Ya Gao , Wenyi Xu , Yiming Chen , Weiya Xie , Qian Cheng

The performance of ultrasound elastography (USE) heavily depends on the accuracy of displacement estimation. Recently, Convolutional Neural Networks (CNN) have shown promising performance in optical flow estimation and have been adopted for…

图像与视频处理 · 电气工程与系统科学 2022-02-01 Ali K. Z. Tehrani , Mostafa Sharifzadeh , Emad Boctor , Hassan Rivaz

Achieving accurate and automated tumor segmentation plays an important role in both clinical practice and radiomics research. Segmentation in medicine is now often performed manually by experts, which is a laborious, expensive and…

图像与视频处理 · 电气工程与系统科学 2022-11-07 Zhengyong Huang , Sijuan Zou , Guoshuai Wang , Zixiang Chen , Hao Shen , Haiyan Wang , Na Zhang , Lu Zhang , Fan Yang , Haining Wangg , Dong Liang , Tianye Niu , Xiaohua Zhuc , Zhanli Hua

Computed tomography (CT) reconstruction plays a crucial role in industrial nondestructive testing and medical diagnosis. Sparse view CT reconstruction aims to reconstruct high-quality CT images while only using a small number of…

图像与视频处理 · 电气工程与系统科学 2024-09-12 Wangduo Xie , Richard Schoonhoven , Tristan van Leeuwen , Matthew B. Blaschko

Magnetic resonance imaging (MRI) is increasingly utilized for image-guided radiotherapy due to its outstanding soft-tissue contrast and lack of ionizing radiation. However, geometric distortions caused by gradient nonlinearity (GNL) limit…

This work develops a novel end-to-end deep unsupervised learning method based on convolutional neural network (CNN) with pseudo-classes for remote sensing scene representation. First, we introduce center points as the centers of the pseudo…

计算机视觉与模式识别 · 计算机科学 2019-03-19 Zhiqiang Gong , Ping Zhong , Weidong Hu , Fang Liu , Bingwei Hui

Accurate segmentation of MR brain tissue is a crucial step for diagnosis,surgical planning, and treatment of brain abnormalities. However,it is a time-consuming task to be performed by medical experts. So, automatic and reliable…

计算机视觉与模式识别 · 计算机科学 2018-07-31 Yang Deng , Yao Sun , Yongpei Zhu , Mingwang Zhu , Wei Han , Kehong Yuan

This paper introduces a meta-learning approach for parameterized pseudo-differential operators with deep neural networks. With the help of the nonstandard wavelet form, the pseudo-differential operators can be approximated in a compressed…

数值分析 · 数学 2020-02-26 Jordi Feliu-Faba , Yuwei Fan , Lexing Ying