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The pandemic resulted in vast repositories of unstructured data, including radiology reports, due to increased medical examinations. Previous research on automated diagnosis of COVID-19 primarily focuses on X-ray images, despite their lower…

Deep learning has demonstrated significant improvements in medical image segmentation using a sufficiently large amount of training data with manual labels. Acquiring well-representative labels requires expert knowledge and exhaustive…

Computer Vision and Pattern Recognition · Computer Science 2021-06-15 Jinxi Xiang , Zhuowei Li , Wenji Wang , Qing Xia , Shaoting Zhang

Accurate multi-organ segmentation in abdominal CT scans is essential for computer-aided diagnosis and treatment. While convolutional neural networks (CNNs) have long been the standard approach in medical image segmentation,…

Computer Vision and Pattern Recognition · Computer Science 2026-03-20 Lukas Bayer , Sheethal Bhat , Andreas Maier

Computed tomography (CT) is extensively used for accurate visualization and segmentation of organs and lesions. While deep learning models such as convolutional neural networks (CNNs) and vision transformers (ViTs) have significantly…

Computer Vision and Pattern Recognition · Computer Science 2025-03-11 Yuheng Li , Yuxiang Lai , Maria Thor , Deborah Marshall , Zachary Buchwald , David S. Yu , Xiaofeng Yang

Deep neural networks have been widely adopted for automatic organ segmentation from abdominal CT scans. However, the segmentation accuracy of some small organs (e.g., the pancreas) is sometimes below satisfaction, arguably because deep…

Computer Vision and Pattern Recognition · Computer Science 2017-06-22 Yuyin Zhou , Lingxi Xie , Wei Shen , Yan Wang , Elliot K. Fishman , Alan L. Yuille

Accurate and robust segmentation of abdominal organs on CT is essential for many clinical applications such as computer-aided diagnosis and computer-aided surgery. But this task is challenging due to the weak boundaries of organs, the…

Computer Vision and Pattern Recognition · Computer Science 2019-04-19 Yan Wang , Yuyin Zhou , Wei Shen , Seyoun Park , Elliot K. Fishman , Alan L. Yuille

This paper proposes a novel transformer-based model architecture for medical imaging problems involving analysis of vertebrae. It considers two applications of such models in MR images: (a) detection of spinal metastases and the related…

Image and Video Processing · Electrical Eng. & Systems 2022-06-28 Rhydian Windsor , Amir Jamaludin , Timor Kadir , Andrew Zisserman

Semi-supervised learning has become increasingly popular in medical image segmentation due to its ability to leverage large amounts of unlabeled data to extract additional information. However, most existing semi-supervised segmentation…

Computer Vision and Pattern Recognition · Computer Science 2023-07-13 Shengbo Gao , Ziji Zhang , Jiechao Ma , Zihao Li , Shu Zhang

Contrast-enhanced computed tomography (CECT) is pivotal for highlighting tissue perfusion and vascularity, yet its clinical ubiquity is impeded by the invasive nature of contrast agents and radiation risks. While virtual contrast…

Computer Vision and Pattern Recognition · Computer Science 2026-04-02 Zilong Li , Dongyang Li , Chenglong Ma , Zhan Feng , Dakai Jin , Junping Zhang , Hao Luo , Fan Wang , Hongming Shan

Abdominal fat quantification is critical since multiple vital organs are located within this region. Although computed tomography (CT) is a highly sensitive modality to segment body fat, it involves ionizing radiations which makes magnetic…

Image and Video Processing · Electrical Eng. & Systems 2020-05-13 Samira Masoudi , Syed M. Anwar , Stephanie A. Harmon , Peter L. Choyke , Baris Turkbey , Ulas Bagci

Clustering is the task of gathering similar data samples into clusters without using any predefined labels. It has been widely studied in machine learning literature, and recent advancements in deep learning have revived interest in this…

Machine Learning · Computer Science 2023-09-04 Mohammadreza Sadeghi , Hadi Hojjati , Narges Armanfard

Semi-supervised learning utilizes insights from unlabeled data to improve model generalization, thereby reducing reliance on large labeled datasets. Most existing studies focus on limited samples and fail to capture the overall data…

Computer Vision and Pattern Recognition · Computer Science 2025-03-13 Xiuzhen Guo , Lianyuan Yu , Ji Shi , Na Lei , Hongxiao Wang

Image segmentation is pivotal in medical image analysis, facilitating clinical diagnosis, treatment planning, and disease evaluation. Deep learning has significantly advanced automatic segmentation methodologies by providing superior…

Image and Video Processing · Electrical Eng. & Systems 2026-01-22 Zhengyong Huang , Ning Jiang , Xingwen Sun , Lihua Zhang , Peng Chen , Jens Domke , Yao Sui

Recent contrastive learning methods achieved state-of-the-art in low label regimes. However, the training requires large batch sizes and heavy augmentations to create multiple views of an image. With non-contrastive methods, the negatives…

Computer Vision and Pattern Recognition · Computer Science 2022-09-27 Taha Emre , Arunava Chakravarty , Antoine Rivail , Sophie Riedl , Ursula Schmidt-Erfurth , Hrvoje Bogunović

In CT angiography, the accurate segmentation of abdominal aortic aneurysms (AAAs) is difficult due to large anatomical variability, low-contrast vessel boundaries, and the close proximity of organs whose intensities resemble vascular…

Computer Vision and Pattern Recognition · Computer Science 2026-04-14 Osamah Sufyan , Martin Brückmann , Ralph Wickenhöfer , Babette Dellen , Uwe Jaekel

In some medical imaging tasks and other settings where only small parts of the image are informative for the classification task, traditional CNNs can sometimes struggle to generalise. Manually annotated Regions of Interest (ROI) are…

Image and Video Processing · Electrical Eng. & Systems 2023-08-15 Alessandro Fontanella , Antreas Antoniou , Wenwen Li , Joanna Wardlaw , Grant Mair , Emanuele Trucco , Amos Storkey

Organ and cancer segmentation in abdomen Computed Tomography (CT) scans is the prerequisite for precise cancer diagnosis and treatment. Most existing benchmarks and algorithms are tailored to specific cancer types, limiting their ability to…

Image and Video Processing · Electrical Eng. & Systems 2024-08-23 Jun Ma , Yao Zhang , Song Gu , Cheng Ge , Ershuai Wang , Qin Zhou , Ziyan Huang , Pengju Lyu , Jian He , Bo Wang

Accurate histological differentiation between adenocarcinoma (ADC) and squamous cell carcinoma (SCC) is critical for personalized treatment in non-small cell lung cancer (NSCLC). While [$^{18}$F]FDG PET/CT is a standard tool for the…

Computer Vision and Pattern Recognition · Computer Science 2026-05-05 Fatih Aksu , Laura Ciuffetti , Francesco Di Feola , Filippo Ruffini , Giulia Romoli , Fabrizia Gelardi , Arturo Chiti , Valerio Guarrasi , Paolo Soda

Semi-supervised learning is a sound measure to relieve the strict demand of abundant annotated datasets, especially for challenging multi-organ segmentation . However, most existing SSL methods predict pixels in a single image…

Computer Vision and Pattern Recognition · Computer Science 2024-05-09 Lu Wen , Zhenghao Feng , Yun Hou , Peng Wang , Xi Wu , Jiliu Zhou , Yan Wang