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Semi-supervised medical image segmentation has shown promise in training models with limited labeled data and abundant unlabeled data. However, state-of-the-art methods ignore a potentially valuable source of unsupervised semantic…

Computer Vision and Pattern Recognition · Computer Science 2024-09-17 Qianying Liu , Paul Henderson , Xiao Gu , Hang Dai , Fani Deligianni

Domain adaptation is crucial for transferring the knowledge from the source labeled CT dataset to the target unlabeled MR dataset in abdominal multi-organ segmentation. Meanwhile, it is highly desirable to avoid the high annotation cost…

Computer Vision and Pattern Recognition · Computer Science 2022-05-31 Jin Hong , Yu-Dong Zhang , Weitian Chen

Accurate segmentation of retinal fluids in 3D Optical Coherence Tomography images is key for diagnosis and personalized treatment of eye diseases. While deep learning has been successful at this task, trained supervised models often fail…

Computer Vision and Pattern Recognition · Computer Science 2022-08-05 Alvaro Gomariz , Huanxiang Lu , Yun Yvonna Li , Thomas Albrecht , Andreas Maunz , Fethallah Benmansour , Alessandra M. Valcarcel , Jennifer Luu , Daniela Ferrara , Orcun Goksel

Partially-supervised multi-organ medical image segmentation aims to develop a unified semantic segmentation model by utilizing multiple partially-labeled datasets, with each dataset providing labels for a single class of organs. However,…

Computer Vision and Pattern Recognition · Computer Science 2024-09-06 Xixi Jiang , Dong Zhang , Xiang Li , Kangyi Liu , Kwang-Ting Cheng , Xin Yang

Automatic delineation of organ-at-risk (OAR) and gross-tumor-volume (GTV) is of great significance for radiotherapy planning. However, it is a challenging task to learn powerful representations for accurate delineation under limited pixel…

Image and Video Processing · Electrical Eng. & Systems 2022-04-21 Jiacheng Wang , Xiaomeng Li , Yiming Han , Jing Qin , Liansheng Wang , Zhou Qichao

A large amount of manual segmentation is typically required to train a robust segmentation network so that it can segment objects of interest in a new imaging modality. The manual efforts can be alleviated if the manual segmentation in one…

Computer Vision and Pattern Recognition · Computer Science 2021-07-13 Bo Zhou , Chi Liu , James S. Duncan

Organ segmentation is a prerequisite for a computer-aided diagnosis (CAD) system to detect pathologies and perform quantitative analysis. For anatomically high-variability abdominal organs such as the pancreas, previous segmentation works…

Computer Vision and Pattern Recognition · Computer Science 2014-08-01 Amal Farag , Le Lu , Evrim Turkbey , Jiamin Liu , Ronald M. Summers

The measurement of three-dimensional (3D) images and the analysis of subcellular organelles are crucial for the study of the pathophysiology of cells and tissues. Optical diffraction tomography (ODT) facilitates label-free and quantitative…

Image and Video Processing · Electrical Eng. & Systems 2019-10-08 Taean Chang , Seungwoo Shin , Moosung Lee , YongKeun Park

The synergistic interpretation of anatomical information from computed tomography (CT) and metabolic information from positron emission tomography (PET) is important to oncologic imaging. However, existing deep learning methods for PET/CT…

Image and Video Processing · Electrical Eng. & Systems 2026-05-22 Xiaofeng Liu , Qianru Zhang , Thibault Marin , Menghua Xia , Chi Liu , Georges El Fakhri , Jinsong Ouyang

Quantification of adipose tissue (fat) from computed tomography (CT) scans is conducted mostly through manual or semi-automated image segmentation algorithms with limited efficacy. In this work, we propose a completely unsupervised and…

Computer Vision and Pattern Recognition · Computer Science 2015-12-17 Sarfaraz Hussein , Aileen Green , Arjun Watane , Georgios Papadakis , Medhat Osman , Ulas Bagci

In this paper, we propose a novel selection strategy for contrastive learning for medical images. On natural images, contrastive learning uses augmentations to select positive and negative pairs for the contrastive loss. However, in the…

Computer Vision and Pattern Recognition · Computer Science 2026-02-24 Kiran Kokilepersaud , Mohit Prabhushankar , Ghassan AlRegib , Stephanie Trejo Corona , Charles Wykoff

Serial sectioning Optical Coherence Tomography (sOCT) is a high-throughput, label free microscopic imaging technique that is becoming increasingly popular to study post-mortem neurovasculature. Quantitative analysis of the vasculature…

Image and Video Processing · Electrical Eng. & Systems 2024-05-24 Etienne Chollet , Yael Balbastre , Caroline Magnain , Bruce Fischl , Hui Wang

Quantitative assessment of the abdominal region from clinically acquired CT scans requires the simultaneous segmentation of abdominal organs. Thanks to the availability of high-performance computational resources, deep learning-based…

Image and Video Processing · Electrical Eng. & Systems 2022-10-11 Samra Irshad , Douglas P. S. Gomes , Seong Tae Kim

This work tests a self-annotation-based unsupervised methodology for training a convolutional neural network (CNN) model for semantic segmentation of X-ray computed tomography (XCT) scans of concretes. Concrete poses a unique challenge for…

Computer Vision and Pattern Recognition · Computer Science 2026-03-03 Kaustav Das , Gaston Rauchs , Jan Sykora , Anna Kucerova

Deep-learning-based automated segmentation of vascular structures in preoperative CT scans contributes to computer-assisted diagnosis and intervention procedure in vascular diseases. While CT angiography (CTA) is the common standard,…

Image and Video Processing · Electrical Eng. & Systems 2024-10-31 Qixiang Ma , Antoine Łucas , Huazhong Shu , Adrien Kaladji , Pascal Haigron

This paper presents a novel positive and negative set selection strategy for contrastive learning of medical images based on labels that can be extracted from clinical data. In the medical field, there exists a variety of labels for data…

Computer Vision and Pattern Recognition · Computer Science 2023-05-25 Kiran Kokilepersaud , Stephanie Trejo Corona , Mohit Prabhushankar , Ghassan AlRegib , Charles Wykoff

Accurate segmentation of pulmonary vessels plays a very critical role in diagnosing and assessing various lung diseases. Currently, many automated algorithms are primarily targeted at CTPA (Computed Tomography Pulmonary Angiography) types…

Image and Video Processing · Electrical Eng. & Systems 2025-05-20 Ying Ming , Shaoze Luo , Longfei Zhao , Ruijie Zhao , Bing Li , Qiqi Xu , Wei Song

The combination of semi-supervised learning (SemiSL) and contrastive learning (CL) has been successful in medical image segmentation with limited annotations. However, these works often rely on pretext tasks that lack the specificity…

Computer Vision and Pattern Recognition · Computer Science 2024-10-15 Zehua Cheng , Di Yuan , Thomas Lukasiewicz

Contrast-enhanced computed tomography (CECT) is the primary imaging technique that provides valuable spatial-temporal information about lesions, enabling the accurate diagnosis and subclassification of pancreatic tumors. However, the high…

Computer Vision and Pattern Recognition · Computer Science 2025-09-17 Zhifang Gong , Shuo Gao , Ben Zhao , Yingjing Xu , Yijun Yang , Shenghong Ju , Guangquan Zhou

The segmentation of endoscopic images plays a vital role in computer-aided diagnosis and treatment. The advancements in deep learning have led to the employment of numerous models for endoscopic tumor segmentation, achieving promising…

Computer Vision and Pattern Recognition · Computer Science 2025-02-03 Lingcong Cai , Yun Li , Xiaomao Fan , Kaixuan Song , Ruxin Wang , Wenbin Lei