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Related papers: SR4ZCT: Self-supervised Through-plane Resolution E…

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This study presents a practical and dose-efficient strategy for resolution enhancement in planar radiography, based on mechanically supersampled acquisition with high-Z photon-counting detectors (PCDs). Unlike prior event-based or cluster…

Deep learning has demonstrated its power in image rectification by leveraging the representation capacity of deep neural networks via supervised training based on a large-scale synthetic dataset. However, the model may overfit the synthetic…

Computer Vision and Pattern Recognition · Computer Science 2021-06-21 Jinlong Fan , Jing Zhang , Dacheng Tao

Chest X-rays (CXRs) are a widely used imaging modality for the diagnosis and prognosis of lung disease. The image analysis tasks vary. Examples include pathology detection and lung segmentation. There is a large body of work where machine…

Image and Video Processing · Electrical Eng. & Systems 2023-05-19 Syed Muhammad Anwar , Abhijeet Parida , Sara Atito , Muhammad Awais , Gustavo Nino , Josef Kitler , Marius George Linguraru

This paper presents a super-resolution (SR) method with unpaired training dataset of clinical CT and micro CT volumes. For obtaining very detailed information such as cancer invasion from pre-operative clinical CT volumes of lung cancer…

Computer Vision and Pattern Recognition · Computer Science 2020-04-08 Tong ZHENG , Hirohisa ODA , Takayasu MORIYA , Takaaki SUGINO , Shota NAKAMURA , Masahiro ODA , Masaki MORI , Hirotsugu TAKABATAKE , Hiroshi NATORI , Kensaku MORI

Dynamic computed tomography perfusion (CTP) imaging is a promising approach for acute ischemic stroke diagnosis and evaluation. Hemodynamic parametric maps of cerebral parenchyma are calculated from repeated CT scans of the first pass of…

Medical Physics · Physics 2020-05-21 Dufan Wu , Hui Ren , Quanzheng Li

With the limited availability of labeled data with various atmospheric conditions in remote sensing images, it seems useful to work with self-supervised algorithms. Few pretext-based algorithms, including from rotation, spatial context and…

Artificial Intelligence · Computer Science 2024-03-12 Akansh Maurya , Hewan Shrestha , Mohammad Munem Shahriar

Spectral-spatial processing has been increasingly explored in remote sensing hyperspectral image classification. While extensive studies have focused on developing methods to improve the classification accuracy, experimental setting and…

Computer Vision and Pattern Recognition · Computer Science 2017-03-08 Jie Liang , Jun Zhou , Yuntao Qian , Lian Wen , Xiao Bai , Yongsheng Gao

Learning visual representations of medical images (e.g., X-rays) is core to medical image understanding but its progress has been held back by the scarcity of human annotations. Existing work commonly relies on fine-tuning weights…

Computer Vision and Pattern Recognition · Computer Science 2022-09-21 Yuhao Zhang , Hang Jiang , Yasuhide Miura , Christopher D. Manning , Curtis P. Langlotz

Imaging beyond the diffraction limit barrier has attracted wide attention due to the ability to resolve image features that were previously hidden. Of the various super-resolution microscopy techniques available, a particularly simple…

Self-supervised learning has been widely used to obtain transferrable representations from unlabeled images. Especially, recent contrastive learning methods have shown impressive performances on downstream image classification tasks. While…

Computer Vision and Pattern Recognition · Computer Science 2021-04-29 Byungseok Roh , Wuhyun Shin , Ildoo Kim , Sungwoong Kim

Optical Coherence Tomography Angiography (OCTA) and its derived en-face projections provide high-resolution visualization of the retinal and choroidal vasculature, which is critical for the rapid and accurate diagnosis of retinal diseases.…

Computer Vision and Pattern Recognition · Computer Science 2025-09-10 Pooya Khosravi , Kun Han , Anthony T. Wu , Arghavan Rezvani , Zexin Feng , Xiaohui Xie

Self-supervised pretraining has been observed to be effective at improving feature representations for transfer learning, leveraging large amounts of unlabelled data. This review summarizes recent research into its usage in X-ray, computed…

Machine Learning · Computer Science 2023-09-07 Blake VanBerlo , Jesse Hoey , Alexander Wong

Chest computed tomography (CT) imaging adds valuable insight in the diagnosis and management of pulmonary infectious diseases, like tuberculosis (TB). However, due to the cost and resource limitations, only X-ray images may be available for…

Image and Video Processing · Electrical Eng. & Systems 2022-11-16 Elena Sizikova , Xu Cao , Ashia Lewis , Kenny Moise , Megan Coffee

The resurgence of deep neural networks has created an alternative pathway for low-dose computed tomography denoising by learning a nonlinear transformation function between low-dose CT (LDCT) and normal-dose CT (NDCT) image pairs. However,…

Image and Video Processing · Electrical Eng. & Systems 2022-11-04 Sutanu Bera , Prabir Kumar Biswas

Automated medical diagnosis through image-based neural networks has increased in popularity and matured over years. Nevertheless, it is confined by the scarcity of medical images and the expensive labor annotation costs. Self-Supervised…

Computer Vision and Pattern Recognition · Computer Science 2024-04-17 Luffina C. Huang , Darren J. Chiu , Manish Mehta

Due to the high availability of large-scale annotated image datasets, knowledge transfer from pre-trained models showed outstanding performance in medical image classification. However, building a robust image classification model for…

Image and Video Processing · Electrical Eng. & Systems 2020-09-16 Asmaa Abbas , Mohammed M. Abdelsamea , Mohamed Gaber

Photon-counting CT (PCCT) offers improved diagnostic performance through better spatial and energy resolution, but developing high-quality image reconstruction methods that can deal with these large datasets is challenging. Model-based…

Medical Physics · Physics 2022-08-09 Alma Eguizabal , Ozan Öktem , Mats U. Persson

Cone-beam computed tomography (CBCT) is routinely collected during image-guided radiation therapy (IGRT) to provide updated patient anatomy information for cancer treatments. However, CBCT images often suffer from streaking artifacts and…

Computer Vision and Pattern Recognition · Computer Science 2023-11-02 Jiarui Zhu , Werxing Chen , Hongfei Sun , Shaohua Zhi , Jing Qin , Jing Cai , Ge Ren

Model-based treatment planning for transcranial ultrasound therapy typically involves mapping the acoustic properties of the skull from an x-ray computed tomography (CT) image of the head. Here, three methods for generating pseudo-CT images…

Many imaging technologies rely on tomographic reconstruction, which requires solving a multidimensional inverse problem given a finite number of projections. Backprojection is a popular class of algorithm for tomographic reconstruction,…

Image and Video Processing · Electrical Eng. & Systems 2020-06-03 Xueqing Liu , Paul Sajda
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