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A two-step concept for 3D segmentation on 5 abdominal organs inside volumetric CT images is presented. First each relevant organ's volume of interest is extracted as bounding box. The extracted volume acts as input for a second stage,…

Image and Video Processing · Electrical Eng. & Systems 2021-07-12 Nico Zettler , Andre Mastmeyer

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

Tumor segmentation in whole-body PET/CT imaging is crucial for precise disease evaluation and treatment planning. However, it remains challenging due to variability in lesion size, contrast, and anatomical distribution. Relying on manual…

Computer Vision and Pattern Recognition · Computer Science 2026-05-12 Hussain Alasmawi

Deep learning has shown great promise in the ability to automatically annotate organs in magnetic resonance imaging (MRI) scans, for example, of the brain. However, despite advancements in the field, the ability to accurately segment…

Image and Video Processing · Electrical Eng. & Systems 2024-03-26 Cosmin Ciausu , Deepa Krishnaswamy , Benjamin Billot , Steve Pieper , Ron Kikinis , Andrey Fedorov

Automated segmentation of kidneys and kidney tumors is an important step in quantifying the tumor's morphometrical details to monitor the progression of the disease and accurately compare decisions regarding the kidney tumor treatment.…

Image and Video Processing · Electrical Eng. & Systems 2019-09-17 Andriy Myronenko , Ali Hatamizadeh

Segmentation of organs of interest in 3D medical images is necessary for accurate diagnosis and longitudinal studies. Though recent advances using deep learning have shown success for many segmentation tasks, large datasets are required for…

Computer Vision and Pattern Recognition · Computer Science 2020-11-20 Soopil Kim , Sion An , Philip Chikontwe , Sang Hyun Park

Weakly supervised segmentation is an important problem in medical image analysis due to the high cost of pixelwise annotation. Prior methods, while often focusing on weak labels of 2D images, exploit few structural cues of volumetric…

Computer Vision and Pattern Recognition · Computer Science 2021-05-07 Qian He , Shuailin Li , Xuming He

Quantitative analysis of brain tumors is critical for clinical decision making. While manual segmentation is tedious, time consuming and subjective, this task is at the same time very challenging to solve for automatic segmentation methods.…

Computer Vision and Pattern Recognition · Computer Science 2018-03-01 Fabian Isensee , Philipp Kickingereder , Wolfgang Wick , Martin Bendszus , Klaus H. Maier-Hein

We developed a new and computationally simple local block-wise self attention based normal structures segmentation approach applied to head and neck computed tomography (CT) images. Our method uses the insight that normal organs exhibit…

Computer Vision and Pattern Recognition · Computer Science 2019-09-12 Jue Jiang , Elguindi Sharif , Hyemin Um , Sean Berry , Harini Veeraraghavan

3D image segmentation is one of the most important and ubiquitous problems in medical image processing. It provides detailed quantitative analysis for accurate disease diagnosis, abnormal detection, and classification. Currently deep…

Computer Vision and Pattern Recognition · Computer Science 2019-06-19 Zhenxi Zhang , Jie Li , Zhusi Zhong , Zhicheng Jiao , Xinbo Gao

Purpose Medical imaging diagnosis faces challenges, including low-resolution images due to machine artifacts and patient movement. This paper presents the Frequency-Guided U-Net (GFNet), a novel approach for medical image segmentation that…

Image and Video Processing · Electrical Eng. & Systems 2024-05-03 Haytham Al Ewaidat , Youness El Brag , Ahmad Wajeeh Yousef E'layan , Ali Almakhadmeh

Detecting and segmenting individual cells from microscopy images is critical to various life science applications. Traditional cell segmentation tools are often ill-suited for applications in brightfield microscopy due to poor contrast and…

Image and Video Processing · Electrical Eng. & Systems 2020-05-20 Rituparna Sarkar , Suvadip Mukherjee , Elisabeth Labruyère , Jean-Christophe Olivo-Marin

Teeth segmentation is an essential task in dental image analysis for accurate diagnosis and treatment planning. While supervised deep learning methods can be utilized for teeth segmentation, they often require extensive manual annotation of…

Computer Vision and Pattern Recognition · Computer Science 2024-02-27 Tomáš Kunzo , Viktor Kocur , Lukáš Gajdošech , Martin Madaras

We present a weakly supervised deep learning method to perform instance segmentation of cells present in microscopy images. Annotation of biomedical images in the lab can be scarce, incomplete, and inaccurate. This is of concern when…

Computer Vision and Pattern Recognition · Computer Science 2019-08-28 Fidel A. Guerrero-Peña , Pedro D. Marrero Fernandez , Tsang Ing Ren , Alexandre Cunha

In drug discovery, accurate lung tumor segmentation is an important step for assessing tumor size and its progression using \textit{in-vivo} imaging such as MRI. While deep learning models have been developed to automate this process, the…

Image and Video Processing · Electrical Eng. & Systems 2024-11-11 Piotr Kaniewski , Fariba Yousefi , Yeman Brhane Hagos , Talha Qaiser , Nikolay Burlutskiy

Automatic cell segmentation is an essential step in the pipeline of computer-aided diagnosis (CAD), such as the detection and grading of breast cancer. Accurate segmentation of cells can not only assist the pathologists to make a more…

Image and Video Processing · Electrical Eng. & Systems 2020-12-29 Muyi Sun , Zeyi Yao , Guanhong Zhang

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

This study addresses critical gaps in automated lymphoma segmentation from PET/CT images, focusing on issues often overlooked in existing literature. While deep learning has been applied for lymphoma lesion segmentation, few studies…

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

Semi-supervised learning has attracted much attention in medical image segmentation due to challenges in acquiring pixel-wise image annotations, which is a crucial step for building high-performance deep learning methods. Most existing…

Computer Vision and Pattern Recognition · Computer Science 2020-10-22 Shuailin Li , Chuyu Zhang , Xuming He