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Accurate organ and lesion segmentation is a critical prerequisite for computer-aided diagnosis. Convolutional Neural Networks (CNNs), constrained by their local receptive fields, often struggle to capture complex global anatomical…

Computer Vision and Pattern Recognition · Computer Science 2025-11-25 Haodong Chen , Xianfei Han , Qwen

Organ at risk (OAR) segmentation in computed tomography (CT) imagery is a difficult task for automated segmentation methods and can be crucial for downstream radiation treatment planning. U-net has become a de-facto standard for medical…

Image and Video Processing · Electrical Eng. & Systems 2024-02-27 Abdullah Nazib , Riad Hassan , Zahidul Islam , Clinton Fookes

Head and neck tumors and metastatic lymph nodes are crucial for treatment planning and prognostic analysis. Accurate segmentation and quantitative analysis of these structures require pixel-level annotation, making automated segmentation…

Image and Video Processing · Electrical Eng. & Systems 2025-04-01 Litingyu Wang , Wenjun Liao , Shichuan Zhang , Guotai Wang

Purpose: To present a high-performing, robust, and flexible deep learning pipeline for automatic segmentation of 30 organs-at-risk (OARs) in head and neck (H&N) cancer patients, using MRI, CT, or both. Method: We trained a segmentation…

Image and Video Processing · Electrical Eng. & Systems 2025-09-08 Sébastien Quetin , Andrew Heschl , Mauricio Murillo , Rohit Murali , Piotr Pater , George Shenouda , Shirin A. Enger , Farhad Maleki

In healthcare, multi-organ system diseases pose unique and significant challenges as they impact multiple physiological systems concurrently, demanding complex and coordinated treatment strategies. Despite recent advancements in the AI…

Artificial Intelligence · Computer Science 2025-08-08 Daniel J. Tan , Qianyi Xu , Kay Choong See , Dilruk Perera , Mengling Feng

In this work we propose a novel approach to perform segmentation by leveraging the abstraction capabilities of convolutional neural networks (CNNs). Our method is based on Hough voting, a strategy that allows for fully automatic…

Learning a medical image segmentation model is an inherently ambiguous task, as uncertainties exist in both images (noise) and manual annotations (human errors and bias) used for model training. To build a trustworthy image segmentation…

Image and Video Processing · Electrical Eng. & Systems 2023-08-17 Xinyu Bai , Wenjia Bai

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…

Image and Video Processing · Electrical Eng. & Systems 2020-12-29 Jun Ma , Xiaoping Yang

Purposes: This study aimed to develop a computed tomography (CT)-based multi-organ segmentation model for delineating organs-at-risk (OARs) in pediatric upper abdominal tumors and evaluate its robustness across multiple datasets. Materials…

Multi-modal learning is typically performed with network architectures containing modality-specific layers and shared layers, utilizing co-registered images of different modalities. We propose a novel learning scheme for unpaired…

Computer Vision and Pattern Recognition · Computer Science 2020-01-10 Qi Dou , Quande Liu , Pheng Ann Heng , Ben Glocker

The segmentation of organs at risk (OAR) is a required precondition for the cancer treatment with image guided radiation therapy. The automation of the segmentation task is therefore of high clinical relevance. Deep Learning (DL) based…

Computer Vision and Pattern Recognition · Computer Science 2022-04-22 Elias Tappeiner , Martin Welk , Rainer Schubert

When delineating lesions from medical images, a human expert can always keep in mind the anatomical structure behind the voxels. However, although high-quality (though not perfect) anatomical information can be retrieved from computed…

Image and Video Processing · Electrical Eng. & Systems 2023-12-04 Rongzhao Zhang , Zhian Bai , Ruoying Yu , Wenrao Pang , Lingyun Wang , Lifeng Zhu , Xiaofan Zhang , Huan Zhang , Weiguo Hu

The ability to dynamically extend a model to new data and classes is critical for multiple organ and tumor segmentation. However, due to privacy regulations, accessing previous data and annotations can be problematic in the medical domain.…

Image and Video Processing · Electrical Eng. & Systems 2023-07-24 Yixiao Zhang , Xinyi Li , Huimiao Chen , Alan Yuille , Yaoyao Liu , Zongwei Zhou

Accurate segmentation of organ at risk (OAR) play a critical role in the treatment planning of image guided radiation treatment of head and neck cancer. This segmentation task is challenging for both human and automatic algorithms because…

Computer Vision and Pattern Recognition · Computer Science 2019-10-14 Yueyue Wang , Liang Zhao , Zhijian Song , Manning Wang

Multi-modal learning plays a crucial role in cancer diagnosis and prognosis. Current deep learning based multi-modal approaches are often limited by their abilities to model the complex correlations between genomics and histology data,…

Image and Video Processing · Electrical Eng. & Systems 2024-06-21 Yupei Zhang , Xiaofei Wang , Fangliangzi Meng , Jin Tang , Chao Li

Magnetic Resonance Imaging (MRI) plays a crucial role in MRI-guided adaptive radiotherapy for head and neck cancer (HNC) due to its superior soft-tissue contrast. However, accurately segmenting the gross tumor volume (GTV), which includes…

Computer Vision and Pattern Recognition · Computer Science 2024-10-18 Jintao Ren , Kim Hochreuter , Jesper Folsted Kallehauge , Stine Sofia Korreman

Hepatocellular carcinoma (HCC) is a common type of liver cancer whose early-stage diagnosis is a common challenge, mainly due to the manual assessment of hematoxylin and eosin-stained whole slide images, which is a time-consuming process…

Image and Video Processing · Electrical Eng. & Systems 2025-03-03 Ajinkya Deshpande , Deep Gupta , Ankit Bhurane , Nisha Meshram , Sneha Singh , Petia Radeva

Since radiologists have different training and clinical experiences, they may provide various segmentation annotations for a lung nodule. Conventional studies choose a single annotation as the learning target by default, but they waste…

Image and Video Processing · Electrical Eng. & Systems 2022-06-08 Han Yang , Lu Shen , Mengke Zhang , Qiuli Wang

Deep learning has shown great potential for automated medical image segmentation to improve the precision and speed of disease diagnostics. However, the task presents significant difficulties due to variations in the scale, shape, texture,…

Image and Video Processing · Electrical Eng. & Systems 2024-09-06 Shahzaib Iqbal , Tariq M. Khan , Syed S. Naqvi , Asim Naveed , Erik Meijering

When applying a Deep Learning model to medical images, it is crucial to estimate the model uncertainty. Voxel-wise uncertainty is a useful visual marker for human experts and could be used to improve the model's voxel-wise output, such as…

Image and Video Processing · Electrical Eng. & Systems 2022-11-02 Anton Vasiliuk , Daria Frolova , Mikhail Belyaev , Boris Shirokikh