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Deep neural networks have shown remarkable performance in image classification. However, their performance significantly deteriorates with corrupted input data. Domain generalization methods have been proposed to train robust models against…

计算机视觉与模式识别 · 计算机科学 2024-01-22 Ingyun Lee , Wooju Lee , Hyun Myung

Computed tomography (CT) is widely used in scientific imaging systems such as synchrotron and laboratory-based nano-CT, but acquiring full-view sinograms requires high radiation dose and long scan times. Sparse-view CT reduces this burden…

图像与视频处理 · 电气工程与系统科学 2026-02-10 Jiaze E , Srutarshi Banerjee , Tekin Bicer , Guannan Wang , Yanfu Zhang , Bin Ren

Quantitative computed tomography (QCT) plays a crucial role in assessing bone strength and fracture risk by enabling volumetric analysis of bone density distribution in the proximal femur. However, deploying automated segmentation models in…

计算机视觉与模式识别 · 计算机科学 2025-11-03 Rochak Dhakal , Chen Zhao , Zixin Shi , Joyce H. Keyak , Tadashi S. Kaneko , Kuan-Jui Su , Hui Shen , Hong-Wen Deng , Weihua Zhou

Single-source domain generalization (SDG) in medical image segmentation is a challenging yet essential task as domain shifts are quite common among clinical image datasets. Previous attempts most conduct global-only/random augmentation.…

计算机视觉与模式识别 · 计算机科学 2022-11-29 Zixian Su , Kai Yao , Xi Yang , Qiufeng Wang , Jie Sun , Kaizhu Huang

Transformers, particularly Vision Transformers (ViTs), have achieved state-of-the-art performance in large-scale image classification. However, they often require large amounts of data and can exhibit biases, such as center or size bias,…

计算机视觉与模式识别 · 计算机科学 2025-12-01 Tobias Christian Nauen , Brian Moser , Federico Raue , Stanislav Frolov , Andreas Dengel

Recently, deep neural networks have demonstrated comparable and even better performance with board-certified ophthalmologists in well-annotated datasets. However, the diversity of retinal imaging devices poses a significant challenge:…

图像与视频处理 · 电气工程与系统科学 2019-10-18 Peng Liu , Bin Kong , Zhongyu Li , Shaoting Zhang , Ruogu Fang

Filtered back projection (FBP) is a classical method for image reconstruction from sinogram CT data. FBP is computationally efficient but produces lower quality reconstructions than more sophisticated iterative methods, particularly when…

图像与视频处理 · 电气工程与系统科学 2018-07-09 Dong Hye Ye , Gregery T. Buzzard , Max Ruby , Charles A. Bouman

Filtered back projection (FBP) is the most widely used method for image reconstruction in X-ray computed tomography (CT) scanners. The presence of hyper-dense materials in a scene, such as metals, can strongly attenuate X-rays, producing…

计算机视觉与模式识别 · 计算机科学 2019-08-02 Muhammad Usman Ghani , W. Clem Karl

In X-ray computed tomography (CT) imaging, the choice of reconstruction kernel is crucial as it significantly impacts the quality of clinical images. Different kernels influence spatial resolution, image noise, and contrast in various ways.…

图像与视频处理 · 电气工程与系统科学 2025-02-24 Hemant Kumar Aggarwal , Antony Jerald , Phaneendra K. Yalavarthy , Rajesh Langoju , Bipul Das

CT imaging works by reconstructing an object of interest from a collection of projections. Traditional methods such as filtered-back projection (FBP) work on projection images acquired around a fixed rotation axis. However, for some CT…

图像与视频处理 · 电气工程与系统科学 2022-09-19 Diyu Yang , Craig A. J. Kemp , Gregery T. Buzzard , Charles A. Bouman

Robust cardiac image segmentation is still an open challenge due to the inability of the existing methods to achieve satisfactory performance on unseen data of different domains. Since the acquisition and annotation of medical data are…

图像与视频处理 · 电气工程与系统科学 2020-08-27 Xiao Liu , Spyridon Thermos , Agisilaos Chartsias , Alison O'Neil , Sotirios A. Tsaftaris

The success of large language models has inspired the computer vision community to explore image segmentation foundation model that is able to zero/few-shot generalize through prompt engineering. Segment-Anything(SAM), among others, is the…

计算机视觉与模式识别 · 计算机科学 2024-04-11 Haojie Zhang , Yongyi Su , Xun Xu , Kui Jia

Accurate and robust medical image segmentation is fundamental and crucial for enhancing the autonomy of computer-aided diagnosis and intervention systems. Medical data collection normally involves different scanners, protocols, and…

图像与视频处理 · 电气工程与系统科学 2023-06-07 An Wang , Mobarakol Islam , Mengya Xu , Hongliang Ren

Zero-shot neural scene segmentation, which reconstructs 3D neural segmentation field without manual annotations, serves as an effective way for scene understanding. However, existing models, especially the efficient 3D Gaussian-based…

计算机视觉与模式识别 · 计算机科学 2024-07-30 Bin Dou , Tianyu Zhang , Zhaohui Wang , Yongjia Ma , Zejian Yuan

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

Speckle noise has long been an extensively studied problem in medical imaging. In recent years, there have been significant advances in leveraging deep learning methods for noise reduction. Nevertheless, adaptation of supervised learning…

图像与视频处理 · 电气工程与系统科学 2023-06-21 Deborah Pereg

Domain-invariant representation learning is a powerful method for domain generalization. Previous approaches face challenges such as high computational demands, training instability, and limited effectiveness with high-dimensional data,…

计算机视觉与模式识别 · 计算机科学 2024-11-25 Yuheng Xu , Taiping Zhang

In recent years, numerous domain adaptive strategies have been proposed to help deep learning models overcome the challenges posed by domain shift. However, even unsupervised domain adaptive strategies still require a large amount of target…

图像与视频处理 · 电气工程与系统科学 2024-07-11 Sumayya Inayat , Nimra Dilawar , Waqas Sultani , Mohsen Ali

Computer-Assisted Interventions enable clinicians to perform precise, minimally invasive procedures, often relying on advanced imaging methods. Cone-beam computed tomography (CBCT) can be used to facilitate computer-assisted interventions,…

图像与视频处理 · 电气工程与系统科学 2024-12-04 Maximilian E. Tschuchnig , Philipp Steininger , Michael Gadermayr

Deep learning has been used extensively for medical image analysis applications, assuming the training and test data adhere to the same probability distributions. However, a common challenge arises when dealing with medical images generated…

图像与视频处理 · 电气工程与系统科学 2024-07-09 Mohd Usama , Emma Nyman , Ulf Naslund , Christer Gronlund