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Liver tumor segmentation in CT images is a critical step in the diagnosis, surgical planning and postoperative evaluation of liver disease. An automatic liver and tumor segmentation method can greatly relieve physicians of the heavy…

Image and Video Processing · Electrical Eng. & Systems 2022-11-16 Jiahao Cui , Ruoxin Xiao , Shiyuan Fang , Minnan Pei , Yixuan Yu

An automatic segmentation algorithm for delineation of the gross tumour volume and pathologic lymph nodes of head and neck cancers in PET/CT images is described. The proposed algorithm is based on a convolutional neural network using the…

Image and Video Processing · Electrical Eng. & Systems 2019-08-05 Yngve Mardal Moe , Aurora Rosvoll Groendahl , Martine Mulstad , Oliver Tomic , Ulf Indahl , Einar Dale , Eirik Malinen , Cecilia Marie Futsaether

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

In clinical practice, regions of interest in medical imaging often need to be identified through a process of precise image segmentation. The quality of this image segmentation step critically affects the subsequent clinical assessment of…

Image and Video Processing · Electrical Eng. & Systems 2021-03-23 João B. S. Carvalho , João A. Santinha , Đorđe Miladinović , Joachim M. Buhmann

In this paper, we present UNet++, a new, more powerful architecture for medical image segmentation. Our architecture is essentially a deeply-supervised encoder-decoder network where the encoder and decoder sub-networks are connected through…

Computer Vision and Pattern Recognition · Computer Science 2018-07-27 Zongwei Zhou , Md Mahfuzur Rahman Siddiquee , Nima Tajbakhsh , Jianming Liang

Small liver lesions common to colorectal liver metastases (CRLMs) are challenging for convolutional neural network (CNN) segmentation models, especially when we have a wide range of slice thicknesses in the computed tomography (CT) scans.…

Image and Video Processing · Electrical Eng. & Systems 2023-08-31 Mohammad Hamghalam , Richard K. G. Do , Amber L. Simpson

Deep learning in gastrointestinal endoscopy can assist to improve clinical performance and be helpful to assess lesions more accurately. To this extent, semantic segmentation methods that can perform automated real-time delineation of a…

Image and Video Processing · Electrical Eng. & Systems 2021-04-23 Debesh Jha , Nikhil Kumar Tomar , Sharib Ali , Michael A. Riegler , Håvard D. Johansen , Dag Johansen , Thomas de Lange , Pål Halvorsen

The need for CT scan analysis is growing for pre-diagnosis and therapy of abdominal organs. Automatic organ segmentation of abdominal CT scan can help radiologists analyze the scans faster and segment organ images with fewer errors.…

Computer Vision and Pattern Recognition · Computer Science 2018-03-06 Shima Rafiei , Ebrahim Nasr-Esfahani , S. M. Reza Soroushmehr , Nader Karimi , Shadrokh Samavi , Kayvan Najarian

One of the most effective ways to treat liver cancer is to perform precise liver resection surgery, the key step of which includes precise digital image segmentation of the liver and its tumor. However, traditional liver parenchymal…

Other Quantitative Biology · Quantitative Biology 2024-06-11 Danyi Huang , Ziang Liu , Yizhou Li

Non-invasive radiological-based lesion characterization and identification, e.g., to differentiate cancer subtypes, has long been a major aim to enhance oncological diagnosis and treatment procedures. Here we study a specific population of…

Computer Vision and Pattern Recognition · Computer Science 2020-09-01 Yuankai Huo , Jinzheng Cai , Chi-Tung Cheng , Ashwin Raju , Ke Yan , Bennett A. Landman , Jing Xiao , Le Lu , Chien-Hung Liao , Adam P. Harrison

Accurate skin-lesion segmentation remains a key technical challenge for computer-aided diagnosis of skin cancer. Convolutional neural networks, while effective, are constrained by limited receptive fields and thus struggle to model…

Computer Vision and Pattern Recognition · Computer Science 2025-09-04 Pengyang Yu , Haoquan Wang , Gerard Marks , Tahar Kechadi , Laurence T. Yang , Sahraoui Dhelim , Nyothiri Aung

Liver landmarks provide crucial anatomical guidance to the surgeon during laparoscopic liver surgery to minimize surgical risk. However, the tubular structural properties of landmarks and dynamic intraoperative deformations pose significant…

Computer Vision and Pattern Recognition · Computer Science 2025-07-02 Ruize Cui , Jiaan Zhang , Jialun Pei , Kai Wang , Pheng-Ann Heng , Jing Qin

Accurate visualization of liver tumors and their surrounding blood vessels is essential for noninvasive diagnosis and prognosis prediction of tumors. In medical image segmentation, there is still a lack of in-depth research on the…

Image and Video Processing · Electrical Eng. & Systems 2023-02-21 Haopeng Kuang , Dingkang Yang , Shunli Wang , Xiaoying Wang , Lihua Zhang

Colorectal liver metastasis is one of most aggressive liver malignancies. While the definition of lesion type based on CT images determines the diagnosis and therapeutic strategy, the discrimination between cancerous and non-cancerous…

Computer Vision and Pattern Recognition · Computer Science 2019-01-29 Francisco Perdigon Romero , Andre Diler , Gabriel Bisson-Gregoire , Simon Turcotte , Real Lapointe , Franck Vandenbroucke-Menu , An Tang , Samuel Kadoury

Accurate segmentation of brain tumors plays a key role in the diagnosis and treatment of brain tumor diseases. It serves as a critical technology for quantifying tumors and extracting their features. With the increasing application of deep…

Image and Video Processing · Electrical Eng. & Systems 2024-11-05 Longfeng Shen , Yanqi Hou , Jiacong Chen , Liangjin Diao , Yaxi Duan

Automatic segmentation of the liver and hepatic lesions is an important step towards deriving quantitative biomarkers for accurate clinical diagnosis and computer-aided decision support systems. This paper presents a method to automatically…

Segmentation of lymphoma lesions is challenging due to their varied sizes and locations in whole-body PET scans. This work presents a fully-automated segmentation technique using a multi-center dataset of diffuse large B-cell lymphoma…

Object segmentation and structure localization are important steps in automated image analysis pipelines for microscopy images. We present a convolution neural network (CNN) based deep learning architecture for segmentation of objects in…

Computer Vision and Pattern Recognition · Computer Science 2019-01-24 Shan E Ahmed Raza , Linda Cheung , Muhammad Shaban , Simon Graham , David Epstein , Stella Pelengaris , Michael Khan , Nasir M. Rajpoot

Accurate classification of focal liver lesions is crucial for diagnosis and treatment in hepatology. However, traditional supervised deep learning models depend on large-scale annotated datasets, which are often limited in medical imaging.…

Computer Vision and Pattern Recognition · Computer Science 2025-05-07 Song Jian , Hu Yuchang , Wang Hui , Chen Yen-Wei

Tumor segmentation in PET-CT images is challenging due to the dual nature of the acquired information: low metabolic information in CT and low spatial resolution in PET. U-Net architecture is the most common and widely recognized approach…

Image and Video Processing · Electrical Eng. & Systems 2022-10-06 Simone Bendazzoli , Mehdi Astaraki