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The objective of this study was to develop a PET tumor-segmentation framework that addresses the challenges of limited spatial resolution, high image noise, and lack of clinical training data with ground-truth tumor boundaries in PET…

Accurate detection and segmentation of diffuse large B-cell lymphoma (DLBCL) from PET images has important implications for estimation of total metabolic tumor volume, radiomics analysis, surgical intervention and radiotherapy. Manual…

Image and Video Processing · Electrical Eng. & Systems 2024-03-13 Shadab Ahamed , Natalia Dubljevic , Ingrid Bloise , Claire Gowdy , Patrick Martineau , Don Wilson , Carlos F. Uribe , Arman Rahmim , Fereshteh Yousefirizi

Automated patient positioning can improve radiology workflow efficiency by reducing the time required for manual table adjustments and scout-based scan planning. We propose a learning-based framework that predicts 3D organ locations and…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Eytan Kats , Kai Geissler , Daniel Mensing , Julien Senegas , Jochen G. Hirsch , Stefan Heldman , Mattias P. Heinrich

Synthesizing healthy brain scans from diseased brain scans offers a potential solution to address the limitations of general-purpose algorithms, such as tissue segmentation and brain extraction algorithms, which may not effectively handle…

Image and Video Processing · Electrical Eng. & Systems 2024-02-05 Ruizhi Zhu , Xinru Zhang , Haowen Pang , Chundan Xu , Chuyang Ye

Automatic organ segmentation is an important yet challenging problem for medical image analysis. The pancreas is an abdominal organ with very high anatomical variability. This inhibits previous segmentation methods from achieving high…

Computer Vision and Pattern Recognition · Computer Science 2015-06-23 Holger R. Roth , Le Lu , Amal Farag , Hoo-Chang Shin , Jiamin Liu , Evrim Turkbey , Ronald M. Summers

Burn injuries can result from mechanisms such as thermal, chemical, and electrical insults. A prompt and accurate assessment of burns is essential for deciding definitive clinical treatments. Currently, the primary approach for burn…

Computer Vision and Pattern Recognition · Computer Science 2023-05-25 Mahla Abdolahnejad , Justin Lee , Hannah Chan , Alex Morzycki , Olivier Ethier , Anthea Mo , Peter X. Liu , Joshua N. Wong , Colin Hong , Rakesh Joshi

Many recent medical segmentation systems rely on powerful deep learning models to solve highly specific tasks. To maximize performance, it is standard practice to evaluate numerous pipelines with varying model topologies, optimization…

Machine Learning · Computer Science 2019-11-06 Mathias Perslev , Erik Bjørnager Dam , Akshay Pai , Christian Igel

Over the last two decades, augmented reality (AR) has led to the rapid development of new interfaces in various fields of social and technological application domains. One such domain is medicine, and to a higher extent surgery, where these…

Human-Computer Interaction · Computer Science 2024-04-02 Jaime Sancho , Manuel Villa , Miguel Chavarrías , Eduardo Juarez , Alfonso Lagares , César Sanz

Purpose: Accurate 3D hand pose estimation supports surgical applications such as skill assessment, robot-assisted interventions, and geometry-aware workflow analysis. However, surgical environments pose severe challenges, including intense…

This paper reports Deep LOGISMOS approach to 3D tumor segmentation by incorporating boundary information derived from deep contextual learning to LOGISMOS - layered optimal graph image segmentation of multiple objects and surfaces. Accurate…

Computer Vision and Pattern Recognition · Computer Science 2018-01-29 Zhihui Guo , Ling Zhang , Le Lu , Mohammadhadi Bagheri , Ronald M. Summers , Milan Sonka , Jianhua Yao

Robust grasping is a major, and still unsolved, problem in robotics. Information about the 3D shape of an object can be obtained either from prior knowledge (e.g., accurate models of known objects or approximate models of familiar objects)…

In this paper, we propose to employ a Gaussian map representation to estimate precise location and count of 3D surface features, addressing the limitations of state-of-the-art methods based on density estimation which struggle in presence…

Computer Vision and Pattern Recognition · Computer Science 2021-12-08 Justin Le Louëdec , Grzegorz Cielniak

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

In this paper, we propose a system to detect brain tumor in 3D MRI brain scans of Flair modality. It performs 2 functions: (a) predicting gray-level and locational distributions of the pixels in the tumor regions and (b) generating tumor…

Image and Video Processing · Electrical Eng. & Systems 2024-03-20 Yanming Sun , Chunyan Wang

Mobile robots rely on maps to navigate through an environment. In the absence of any map, the robots must build the map online from partial observations as they move in the environment. Traditional methods build a map using only direct…

Robotics · Computer Science 2024-10-14 Vishnu Dutt Sharma

Manipulation in confined and cluttered environments remains a significant challenge due to partial observability and complex configuration spaces. Effective manipulation in such environments requires an intelligent exploration strategy to…

Robotics · Computer Science 2026-05-20 Qixuan Li , Chen Le , Dongyue Huang , Jincheng Yu , Xinlei Chen

Despite that the segment anything model (SAM) achieved impressive results on general-purpose semantic segmentation with strong generalization ability on daily images, its demonstrated performance on medical image segmentation is less…

Computer Vision and Pattern Recognition · Computer Science 2024-10-03 Shizhan Gong , Yuan Zhong , Wenao Ma , Jinpeng Li , Zhao Wang , Jingyang Zhang , Pheng-Ann Heng , Qi Dou

PET and CT are two modalities widely used in medical image analysis. Accurately detecting and segmenting lymphomas from these two imaging modalities are critical tasks for cancer staging and radiotherapy planning. However, this task is…

Image and Video Processing · Electrical Eng. & Systems 2021-04-28 Ling Huang , Su Ruan , Pierre Decazes , Thierry Denoeux

Accurately segmenting and individualizing cells in SEM images is a highly promising technique for elucidating tissue architecture in oncology. While current AI-based methods are effective, errors persist, necessitating time-consuming manual…

Image and Video Processing · Electrical Eng. & Systems 2025-04-11 Florian Robert , Alexia Calovoulos , Laurent Facq , Fanny Decoeur , Etienne Gontier , Christophe F. Grosset , Baudouin Denis de Senneville

To meet the clinical demand for accurate 3D lumbar spine assessment in a weight-bearing position, this study presents a novel, fully automatic framework for high-precision 3D reconstruction from biplanar X-ray images, overcoming the…

Image and Video Processing · Electrical Eng. & Systems 2025-10-08 Wanxin Yu , Zhemin Zhu , Cong Wang , Yihang Bao , Chunjie Xia , Rongshan Cheng , Yan Yu , Tsung-Yuan Tsai