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Sparse-view computed tomography (SVCT) reconstruction aims to acquire CT images based on sparsely-sampled measurements. It allows the subjects exposed to less ionizing radiation, reducing the lifetime risk of developing cancers. Recent…

图像与视频处理 · 电气工程与系统科学 2024-06-24 Zixuan Chen , Lingxiao Yang , Jian-Huang Lai , Xiaohua Xie

CT protocol design and quality control would benefit from automated tools to estimate the quality of generated CT images. These tools could be used to identify erroneous CT acquisitions or refine protocols to achieve certain signal to noise…

计算机视觉与模式识别 · 计算机科学 2016-10-25 Sohini Roychowdhury , Nathan Hollraft , Adam Alessio

Photon counting detectors (PCDs) offer promising advancements in computed tomography (CT) imaging by enabling the quantification and 3D imaging of contrast agents and tissue types through multi-energy projections. However, the accuracy of…

医学物理 · 物理学 2023-10-18 Juan C. R. Luna , Mini Das

X-ray computed tomographic infrastructures are medical imaging modalities that rely on the acquisition of rays crossing examined objects while measuring their intensity decrease. Physical measurements are post-processed by mathematical…

图像与视频处理 · 电气工程与系统科学 2022-01-25 Attila Juhos

Coronary CT angiography (CCTA) and intravascular ultrasound (IVUS) provide complementary information for coronary artery disease assessment, making their registration valuable for comprehensive analysis. However, existing registration…

图像与视频处理 · 电气工程与系统科学 2024-12-24 R. L. M. van Herten , José P. Henriques , R. Nils Planken , Joost Daemen , Eline M. J. Hartman , Jolanda J. Wentzel , Ivana Išgum

Current image quality assessment methods are heavily biased towards global distortions (e.g., noise, blur), neglecting local perceptual artifacts such as ghosting, lens flare, and moire effects. Although significant progress has been made…

计算机视觉与模式识别 · 计算机科学 2026-05-12 Juan Wang , Xinyu Sun , Ke Zhang , Jin Wang , Bing Li , Weiming Hu , Liang Wang

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…

图像与视频处理 · 电气工程与系统科学 2024-10-28 Ang Li , Jiayi Han , Yongjian Zhao , Keyu Li , Li Liu

Optical Coherence Tomography (OCT) is an imaging modality that has been widely adopted for visualizing corneal, retinal and limbal tissue structure with micron resolution. It can be used to diagnose pathological conditions of the eye, and…

图像与视频处理 · 电气工程与系统科学 2019-05-08 Jiahong Ouyang , Tejas Sudharshan Mathai , Kira Lathrop , John Galeotti

In order to use the navigation system effectively, distance information sensors such as depth sensors are essential. Since depth sensors are difficult to use in endoscopy, many groups propose a method using convolutional neural networks. In…

图像与视频处理 · 电气工程与系统科学 2021-12-28 Bong Hyuk Jeong , Hang Keun Kim , Young Don Son

Purpose: Middle ear infection is the most prevalent inflammatory disease, especially among the pediatric population. Current diagnostic methods are subjective and depend on visual cues from an otoscope, which is limited for otologists to…

计算机视觉与模式识别 · 计算机科学 2023-04-27 Peng Liu , Jonas Golde , Joseph Morgenstern , Sebastian Bodenstedt , Chenpan Li , Yujia Hu , Zhaoyu Chen , Edmund Koch , Marcus Neudert , Stefanie Speidel

The quality of images captured by wireless capsule endoscopy (WCE) is key for doctors to diagnose diseases of gastrointestinal (GI) tract. However, there exist many low-quality endoscopic images due to the limited illumination and complex…

图像与视频处理 · 电气工程与系统科学 2020-03-17 Shaofeng Zou , Mingzhu Long , Xuyang Wang , Xiang Xie , Guolin Li , Zhihua Wang

Cranial implant design is a challenging task, whose accuracy is crucial in the context of cranioplasty procedures. This task is usually performed manually by experts using computer-assisted design software. In this work, we propose and…

图像与视频处理 · 电气工程与系统科学 2020-09-30 Franco Matzkin , Virginia Newcombe , Ben Glocker , Enzo Ferrante

Electrical hearing by cochlear implants (CIs) may be fundamentally different from acoustic hearing by normal-hearing (NH) listeners, presumably showing unequal speech quality perception in various noise environments. Noise reduction (NR)…

音频与语音处理 · 电气工程与系统科学 2021-03-04 Sara Akbarzadeh , Sungmin Lee , Fei Chen , Chin-Tuan Tan

Medical image segmentation is a cornerstone of computer-assisted diagnosis and treatment planning. While recent multimodal vision-language models have shown promise in enhancing semantic understanding through textual descriptions, their…

计算机视觉与模式识别 · 计算机科学 2026-03-03 Saivan Talaei , Fatemeh Daneshfar , Abdulhady Abas Abdullah , Mustaqeem Khan

Chest computed tomography (CT) has played an essential diagnostic role in assessing patients with COVID-19 by showing disease-specific image features such as ground-glass opacity and consolidation. Image segmentation methods have proven to…

图像与视频处理 · 电气工程与系统科学 2021-07-26 Seong Tae Kim , Leili Goli , Magdalini Paschali , Ashkan Khakzar , Matthias Keicher , Tobias Czempiel , Egon Burian , Rickmer Braren , Nassir Navab , Thomas Wendler

Counterfactual image generation enables controlled data augmentation, bias mitigation, and disease modeling. However, existing methods guided by external classifiers or regressors are limited to subject-level factors (e.g., age) and fail to…

Photon-counting CT (PCCT) provides superior image quality with higher spatial resolution and lower noise compared to conventional energy-integrating CT (EICT), but its limited clinical availability restricts large-scale research and…

计算机视觉与模式识别 · 计算机科学 2026-04-09 Junqi Liu , Xinze Zhou , Wenxuan Li , Scott Ye , Arkadiusz Sitek , Xiaofeng Yang , Yucheng Tang , Daguang Xu , Kai Ding , Kang Wang , Yang Yang , Alan L. Yuille , Zongwei Zhou

Though analysis of Medical Images by Deep Learning achieves unprecedented results across various applications, the effect of \emph{noisy training annotations} is rarely studied in a systematic manner. In Medical Image Analysis, most reports…

计算机视觉与模式识别 · 计算机科学 2018-06-21 David Kügler , Anirban Mukhopadhyay

We present a comprehensive overview of the Deep Image Prior (DIP) framework and its applications to image reconstruction in computed tomography. Unlike conventional deep learning methods that rely on large, supervised datasets, the DIP…

图像与视频处理 · 电气工程与系统科学 2026-02-24 Simon Arridge , Riccardo Barbano , Alexander Denker , Zeljko Kereta

Real-time cine magnetic resonance imaging (MRI) plays an increasingly important role in various cardiac interventions. In order to enable fast and accurate visual assistance, the temporal frames need to be segmented on-the-fly. However,…

图像与视频处理 · 电气工程与系统科学 2020-07-21 Tianchen Wang , Xiaowei Xu , Jinjun Xiong , Qianjun Jia , Haiyun Yuan , Meiping Huang , Jian Zhuang , Yiyu Shi