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We introduce a method for training neural networks to perform image or volume segmentation in which prior knowledge about the topology of the segmented object can be explicitly provided and then incorporated into the training process. By…

Computer Vision and Pattern Recognition · Computer Science 2020-09-21 James R. Clough , Nicholas Byrne , Ilkay Oksuz , Veronika A. Zimmer , Julia A. Schnabel , Andrew P. King

Training convolutional neural networks (CNNs) for segmentation of pulmonary airway, artery, and vein is challenging due to sparse supervisory signals caused by the severe class imbalance between tubular targets and background. We present a…

Image and Video Processing · Electrical Eng. & Systems 2021-02-26 Yulei Qin , Hao Zheng , Yun Gu , Xiaolin Huang , Jie Yang , Lihui Wang , Feng Yao , Yue-Min Zhu , Guang-Zhong Yang

Automatic segmentation of liver tumors in medical images is crucial for the computer-aided diagnosis and therapy. It is a challenging task, since the tumors are notoriously small against the background voxels. This paper proposes a new…

Image and Video Processing · Electrical Eng. & Systems 2019-10-18 Huiyu Li , Xiabi Liu , Said Boumaraf , Weihua Liu , Xiaopeng Gong , Xiaohong Ma

Purpose: Automated liver tumor segmentation from Computed Tomography (CT) images is a necessary prerequisite in the interventions of hepatic abnormalities and surgery planning. However, accurate liver tumor segmentation remains challenging…

Computer Vision and Pattern Recognition · Computer Science 2023-01-11 Yao Zhang , Jiawei Yang , Yang Liu , Jiang Tian , Siyun Wang , Cheng Zhong , Zhongchao Shi , Yang Zhang , Zhiqiang He

Primary tumors have a high likelihood of developing metastases in the liver and early detection of these metastases is crucial for patient outcome. We propose a method based on convolutional neural networks (CNN) to detect liver metastases.…

Image and Video Processing · Electrical Eng. & Systems 2019-10-16 Mariëlle J. A. Jansen , Hugo J. Kuijf , Maarten Niekel , Wouter B. Veldhuis , Frank J. Wessels , Max A. Viergever , Josien P. W. Pluim

This paper investigates the application of deep learning models for lung Computed Tomography (CT) image analysis. Traditional deep learning frameworks encounter compatibility issues due to variations in slice numbers and resolutions in CT…

Image and Video Processing · Electrical Eng. & Systems 2023-03-16 Chih-Chung Hsu , Chih-Yu Jian , Chia-Ming Lee , Chi-Han Tsai , Sheng-Chieh Dai

Accurate liver and lesion segmentation from computed tomography (CT) images are highly demanded in clinical practice for assisting the diagnosis and assessment of hepatic tumor disease. However, automatic liver and lesion segmentation from…

Image and Video Processing · Electrical Eng. & Systems 2021-06-23 Liping Zhang , Simon Chun-Ho Yu

In this work, we propose a new segmentation network by integrating DenseUNet and bidirectional LSTM together with attention mechanism, termed as DA-BDense-UNet. DenseUNet allows learning enough diverse features and enhancing the…

Image and Video Processing · Electrical Eng. & Systems 2021-07-27 Wenming Cao , Philip L. H. Yu , Gilbert C. S. Lui , Keith W. H. Chiu , Ho-Ming Cheng , Yanwen Fang , Man-Fung Yuen , Wai-Kay Seto

For more clinical applications of deep learning models for medical image segmentation, high demands on labeled data and computational resources must be addressed. This study proposes a coarse-to-fine framework with two teacher models and a…

Image and Video Processing · Electrical Eng. & Systems 2022-11-14 Jae Won Choi

Purpose: Accurate segmentation of lung and infection in COVID-19 CT scans plays an important role in the quantitative management of patients. Most of the existing studies are based on large and private annotated datasets that are…

Image and Video Processing · Electrical Eng. & Systems 2021-06-09 Jun Ma , Yixin Wang , Xingle An , Cheng Ge , Ziqi Yu , Jianan Chen , Qiongjie Zhu , Guoqiang Dong , Jian He , Zhiqiang He , Yuntao Zhu , Ziwei Nie , Xiaoping Yang

Precise and automated segmentation of the liver and its tumor within CT scans plays a pivotal role in swift diagnosis and the development of optimal treatment plans for individuals with liver diseases and malignancies. However, automated…

Computer Vision and Pattern Recognition · Computer Science 2025-07-29 Chandravardhan Singh Raghaw , Jasmer Singh Sanjotra , Mohammad Zia Ur Rehman , Shubhi Bansal , Shahid Shafi Dar , Nagendra Kumar

We present an automatic method for joint liver lesion segmentation and classification using a hierarchical fine-tuning framework. Our dataset is small, containing 332 2-D CT examinations with lesion annotated into 3 lesion types: cysts,…

Image and Video Processing · Electrical Eng. & Systems 2019-08-01 Michal Heker , Avi Ben-Cohen , Hayit Greenspan

Quantitative bone single-photon emission computed tomography (QBSPECT) has the potential to provide a better quantitative assessment of bone metastasis than planar bone scintigraphy due to its ability to better quantify activity in…

Computer Vision and Pattern Recognition · Computer Science 2021-05-31 Junyu Chen , Ye Li , Licia P. Luna , Hyun Woo Chung , Steven P. Rowe , Yong Du , Lilja B. Solnes , Eric C. Frey

Deep learning-based segmentation of the liver and hepatic lesions therein steadily gains relevance in clinical practice due to the increasing incidence of liver cancer each year. Whereas various network variants with overall promising…

Image and Video Processing · Electrical Eng. & Systems 2023-03-23 Georg Hille , Shubham Agrawal , Pavan Tummala , Christian Wybranski , Maciej Pech , Alexey Surov , Sylvia Saalfeld

Training data is the key component in designing algorithms for medical image analysis and in many cases it is the main bottleneck in achieving good results. Recent progress in image generation has enabled the training of neural network…

Computer Vision and Pattern Recognition · Computer Science 2018-11-02 Avi Ben-Cohen , Roey Mechrez , Noa Yedidia , Hayit Greenspan

Medical image semantic segmentation techniques can help identify tumors automatically from computed tomography (CT) scans. In this paper, we propose a Contextual and Attentional feature Fusions enhanced Convolutional Neural Network (CNN)…

Computer Vision and Pattern Recognition · Computer Science 2024-10-08 Ming Kang , Chee-Ming Ting , Fung Fung Ting , Raphaël Phan

Lymphoma detection and segmentation from whole-body Positron Emission Tomography/Computed Tomography (PET/CT) volumes are crucial for surgical indication and radiotherapy. Designing automatic segmentation methods capable of effectively…

Image and Video Processing · Electrical Eng. & Systems 2021-08-29 Ling Huang , Thierry Denoeux , David Tonnelet , Pierre Decazes , Su Ruan

Computer-Assisted Interventions enable clinicians to perform precise, minimally invasive procedures, often relying on advanced imaging methods. Cone-beam computed tomography (CBCT) can be used to facilitate computer-assisted interventions,…

Image and Video Processing · Electrical Eng. & Systems 2024-12-04 Maximilian E. Tschuchnig , Philipp Steininger , Michael Gadermayr

With the development of computer technology, various models have emerged in artificial intelligence. The transformer model has been applied to the field of computer vision (CV) after its success in natural language processing (NLP).…

Computer Vision and Pattern Recognition · Computer Science 2022-07-05 Ruina Sun , Yuexin Pang