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Abdominal organ segmentation from CT and MRI is an essential prerequisite for surgical planning and computer-aided navigation systems. It is challenging due to the high variability in the shape, size, and position of abdominal organs.…

Computer Vision and Pattern Recognition · Computer Science 2023-10-31 Fabian Bongratz , Anne-Marie Rickmann , Christian Wachinger

Purpose: To develop a fast and precise method for searching rectangular regions in brain tumor images. Methods: The authors propose a new method for searching rectangular tumor regions in brain MR images. The proposed method consisted of a…

Image and Video Processing · Electrical Eng. & Systems 2026-01-08 Hidenori Takeshima , Shuki Maruyama

A vertebrate interval graph is an interval graph in which the maximum size of a set of independent vertices equals the number of maximal cliques. For any fixed $v \ge 1$, there is a polynomial-time algorithm for deciding whether a…

Combinatorics · Mathematics 2021-09-28 Rain Jiang , Kai Jiang , Minghui Jiang

Due to low tissue contrast, irregular object appearance, and unpredictable location variation, segmenting the objects from different medical imaging modalities (e.g., CT, MR) is considered as an important yet challenging task. In this…

Computer Vision and Pattern Recognition · Computer Science 2018-05-10 Jinquan Sun , Yinghuan Shi , Yang Gao , Lei Wang , Luping Zhou , Wanqi Yang , Dinggang Shen

In this work, we present an integrated geometric framework: "deep- cut" that enables for the first time a user to geometrically and algorithmically cut, tear and drill the surface of a skinned model without prior constraints, layered on top…

Consider the following "local" cut-detection problem in a directed graph: We are given a starting vertex $s$ and need to detect whether there is a cut with at most $k$ edges crossing the cut such that the side of the cut containing $s$ has…

Data Structures and Algorithms · Computer Science 2019-04-23 Sebastian Forster , Liu Yang

Accurate segmentation for medical images is important for clinical diagnosis. Existing automatic segmentation methods are mainly based on fully supervised learning and have an extremely high demand for precise annotations, which are very…

Computer Vision and Pattern Recognition · Computer Science 2021-06-10 Yuanpeng Liu , Qinglei Hui , Zhiyi Peng , Shaolin Gong , Dexing Kong

Medical image analysis using deep learning has recently been prevalent, showing great performance for various downstream tasks including medical image segmentation and its sibling, volumetric image segmentation. Particularly, a typical…

Computer Vision and Pattern Recognition · Computer Science 2024-03-01 Ngoc-Vuong Ho , Tan Nguyen , Gia-Han Diep , Ngan Le , Binh-Son Hua

Cardiac image segmentation is a powerful tool in regard to diagnostics and treatment of cardiovascular diseases. Purely feature-based detection of anatomical structures like the mitral valve is a laborious task due to specifically required…

Image and Video Processing · Electrical Eng. & Systems 2023-01-24 Christian Schmidt , Heinrich Martin Overhoff

When the blood supply to the brain is obstructed by a clot, oxygen delivery to brain tissues becomes insufficient, leading to cellular necrosis. In healthcare settings, accurately identifying and delineating ischemic lesion boundaries is…

Image and Video Processing · Electrical Eng. & Systems 2026-05-22 Sayed Amir Mousavi Mobarakeh

Automatic segmentation of shoulder muscle MRI is challenging due to the high variation in muscle size, shape, texture, and spatial position of tears. Manual segmentation of tear and muscle portion is hard, time-consuming, and subjective to…

Image and Video Processing · Electrical Eng. & Systems 2021-08-27 Saddam Hussain Khan , Asifullah Khan , Yeon Soo Lee , Mehdi Hassan , Woong Kyo jeong

Fully automatic cardiac segmentation can be a fast and reproducible method to extract clinical measurements from an echocardiography examination. The U-Net architecture is the current state-of-the-art deep learning architecture for medical…

Image and Video Processing · Electrical Eng. & Systems 2024-10-28 Gilles Van De Vyver , Sarina Thomas , Guy Ben-Yosef , Sindre Hellum Olaisen , Håvard Dalen , Lasse Løvstakken , Erik Smistad

Computer-aided diagnosis (CAD) has long become an integral part of radiological management of breast disease, facilitating a number of important clinical applications, including quantitative assessment of breast density and early detection…

Computer Vision and Pattern Recognition · Computer Science 2020-09-01 Hossein Soleimani , Oleg V. Michailovich

Object segmentation is an important capability for robotic systems, in particular for grasping. We present a graph- based approach for the segmentation of simple objects from RGB-D images. We are interested in segmenting objects with large…

Computer Vision and Pattern Recognition · Computer Science 2016-05-13 Giorgio Toscana , Stefano Rosa

Image segmentation is a complex mathematical problem, especially for images that contain intensity inhomogeneity and tightly packed objects with missing boundaries in between. For instance, Magnetic Resonance (MR) muscle images often…

Computer Vision and Pattern Recognition · Computer Science 2023-09-21 Paramjyoti Mohapatra , Richard Lartey , Weihong Guo , Michael Judkovich , Xiaojuan Li

One of the major difficulties in medical image segmentation is the high variability of these images, which is caused by their origin (multi-centre), the acquisition protocols (multi-parametric), as well as the variability of human anatomy,…

Image and Video Processing · Electrical Eng. & Systems 2022-11-09 Jhon Jairo Saenz-Gamboa , Julio Domenech , Antonio Alonso-Manjarrés , Jon A. Gómez , Maria de la Iglesia-Vayá

Medical image segmentation is one of the most challenging tasks in medical image analysis and has been widely developed for many clinical applications. Most of the existing metrics have been first designed for natural images and then…

Image and Video Processing · Electrical Eng. & Systems 2021-03-24 Vidhiwar Singh Rathour , Kashu Yamakazi , T. Hoang Ngan Le

We propose a new algorithm for curve skeleton computation which differs from previous algorithms by being based on the notion of local separators. The main benefits of this approach are that it is able to capture relatively fine details and…

Computational Geometry · Computer Science 2020-09-11 Andreas Bærentzen , Eva Rotenberg

Accurate musculoskeletal soft tissue tumor segmentation is vital for assessing tumor size, location, diagnosis, and response to treatment, thereby influencing patient outcomes. However, segmentation of these tumors requires clinical…

Image and Video Processing · Electrical Eng. & Systems 2024-09-06 Tahsin Reasat , Stephen Chenard , Akhil Rekulapelli , Nicholas Chadwick , Joanna Shechtel , Katherine van Schaik , David S. Smith , Joshua Lawrenz

In this paper, we formulated the kidney segmentation task in a coarse-to-fine fashion, predicting a coarse label based on the entire CT image and a fine label based on the coarse segmentation and separated image patches. A key difference…

Image and Video Processing · Electrical Eng. & Systems 2019-08-30 Yue Zhang , Jiong Wu , Yu Zhou , Yifan Chen , Xiaoying Tang