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Reliable tumor segmentation in thoracic computed tomography (CT) remains challenging due to boundary ambiguity, class imbalance, and anatomical variability. We propose an uncertainty-guided, coarse-to-fine segmentation framework that…

计算机视觉与模式识别 · 计算机科学 2025-07-04 Ilkin Sevgi Isler , David Mohaisen , Curtis Lisle , Damla Turgut , Ulas Bagci

Automatic segmentation of head and neck tumors plays an important role in radiomics analysis. In this short paper, we propose an automatic segmentation method for head and neck tumors from PET and CT images based on the combination of…

图像与视频处理 · 电气工程与系统科学 2020-12-29 Jun Ma , Xiaoping Yang

Learning discriminative representations of unlabelled data is a challenging task. Contrastive self-supervised learning provides a framework to learn meaningful representations using learned notions of similarity measures from simple pretext…

计算机视觉与模式识别 · 计算机科学 2023-01-04 Nicklas Boserup , Raghavendra Selvan

Convolutional neural networks (CNNs) show outstanding performance in many image processing problems, such as image recognition, object detection and image segmentation. Semantic segmentation is a very challenging task that requires…

计算机视觉与模式识别 · 计算机科学 2019-07-12 Fan Jia , Jun Liu , Xue-cheng Tai

Clinical target volume (CTV) delineation from radiotherapy computed tomography (RTCT) images is used to define the treatment areas containing the gross tumor volume (GTV) and/or sub-clinical malignant disease for radiotherapy (RT). High…

图像与视频处理 · 电气工程与系统科学 2019-09-09 Dakai Jin , Dazhou Guo , Tsung-Ying Ho , Adam P. Harrison , Jing Xiao , Chen-kan Tseng , Le Lu

Medical image segmentation methods are generally designed as fully-supervised to guarantee model performance, which require a significant amount of expert annotated samples that are high-cost and laborious. Semi-supervised image…

计算机视觉与模式识别 · 计算机科学 2023-10-10 Xiangyu Zhao , Zengxin Qi , Sheng Wang , Qian Wang , Xuehai Wu , Ying Mao , Lichi Zhang

Brain tumors are highly heterogeneous in terms of their spatial and scaling characteristics, making tumor segmentation in medical images a difficult task that might result in wrong diagnosis and therapy. Automation of a task like tumor…

图像与视频处理 · 电气工程与系统科学 2025-01-24 Satyaki Roy Chowdhury , Golrokh Mirzaei

Semi-supervised learning is of great significance in medical image segmentation by exploiting unlabeled data. Among its strategies, the co-training framework is prominent. However, previous co-training studies predominantly concentrate on…

计算机视觉与模式识别 · 计算机科学 2025-03-19 Pengcheng Zhou , Lantian Zhang , Wei Li

In this paper, we propose a novel mutual consistency network (MC-Net+) to effectively exploit the unlabeled data for semi-supervised medical image segmentation. The MC-Net+ model is motivated by the observation that deep models trained with…

计算机视觉与模式识别 · 计算机科学 2022-07-05 Yicheng Wu , Zongyuan Ge , Donghao Zhang , Minfeng Xu , Lei Zhang , Yong Xia , Jianfei Cai

Accurate and reliable tumor segmentation is essential in medical imaging analysis for improving diagnosis, treatment planning, and monitoring. However, existing segmentation models often lack robust mechanisms for quantifying the…

图像与视频处理 · 电气工程与系统科学 2025-03-14 Seyed Sina Ziaee , Farhad Maleki , Katie Ovens

Precise and accurate segmentation of the most common head-and-neck tumor, nasopharyngeal carcinoma (NPC), in MRI sheds light on treatment and regulatory decisions making. However, the large variations in the lesion size and shape of NPC,…

图像与视频处理 · 电气工程与系统科学 2020-12-22 Pin Tang , Chen Zu , Mei Hong , Rui Yan , Xingchen Peng , Jianghong Xiao , Xi Wu , Jiliu Zhou , Luping Zhou , Yan Wang

Medical image segmentation is a crucial task in medical image analysis, but it can be very challenging especially when there are less labeled data but with large unlabeled data. Contrastive learning has proven to be effective for medical…

计算机视觉与模式识别 · 计算机科学 2025-02-11 Shihuan He , Zhihui Lai , Ruxin Wang , Heng Kong

Gross tumor volume (GTV) delineation on tomography medical imaging is crucial for radiotherapy planning and cancer diagnosis. Convolutional neural networks (CNNs) has been predominated on automatic 3D medical segmentation tasks, including…

图像与视频处理 · 电气工程与系统科学 2020-12-15 Chun-Hung Chao , Hsien-Tzu Cheng , Tsung-Ying Ho , Le Lu , Min Sun

Accurate brain tumor segmentation from MRI scans is critical for diagnosis and treatment planning. Despite the strong performance of recent deep learning approaches, two fundamental limitations remain: (1) the lack of reliable uncertainty…

计算机视觉与模式识别 · 计算机科学 2026-03-24 Bahram Mohammadi , Yanqiu Wu , Vu Minh Hieu Phan , Sam White , Minh-Son To , Jian Yang , Michael Sheng , Yang Song , Yuankai Qi

Segmentation of head and neck (H\&N) tumours and prediction of patient outcome are crucial for patient's disease diagnosis and treatment monitoring. Current developments of robust deep learning models are hindered by the lack of large…

图像与视频处理 · 电气工程与系统科学 2021-11-09 Emmanuelle Bourigault , Daniel R. McGowan , Abolfazl Mehranian , Bartłomiej W. Papież

Despite signi cant progress in semi-supervised medical image segmentation, most existing segmentation networks overlook e ective methodological guidance for feature extraction and important prior information from datasets. In this paper, we…

计算机视觉与模式识别 · 计算机科学 2025-09-05 Junying Meng , Gangxuan Zhou , Jun Liu , Weihong Guo

The prediction of adaptive radiation therapy (ART) prior to radiation therapy (RT) for nasopharyngeal carcinoma (NPC) patients is important to reduce toxicity and prolong the survival of patients. Currently, due to the complex tumor…

计算机视觉与模式识别 · 计算机科学 2022-10-28 Jiabao Sheng , Yuanpeng Zhang , Jing Cai , Sai-Kit Lam , Zhe Li , Jiang Zhang , Xinzhi Teng

The main treatment modality for oropharyngeal cancer (OPC) is radiotherapy, where accurate segmentation of the primary gross tumor volume (GTVp) is essential. However, accurate GTVp segmentation is challenging due to significant…

Head and Neck (H\&N) organ-at-risk (OAR) and tumor segmentations are essential components of radiation therapy planning. The varying anatomic locations and dimensions of H\&N nodal Gross Tumor Volumes (GTVn) and H\&N primary gross tumor…

图像与视频处理 · 电气工程与系统科学 2022-11-01 Abhishek Srivastava , Debesh Jha , Bulent Aydogan , Mohamed E. Abazeed , Ulas Bagci

The segmentation and classification of carotid plaques in ultrasound images play important roles in the treatment of atherosclerosis and assessment for the risk of stroke. Although deep learning methods have been used for carotid plaque…

图像与视频处理 · 电气工程与系统科学 2023-11-21 Haitao Gan , Ran Zhou , Yanghan Ou , Furong Wang , Xinyao Cheng , Aaron Fenster