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Medical segmentation models are evaluated empirically. As such an evaluation is based on a limited set of example images, it is unavoidably noisy. Beyond a mean performance measure, reporting confidence intervals is thus crucial. However,…

图像与视频处理 · 电气工程与系统科学 2025-03-25 R. El Jurdi , G. Varoquaux , O. Colliot

The application of deep learning models to large-scale data sets requires means for automatic quality assurance. We have previously developed a fully automatic algorithm for carotid artery wall segmentation in black-blood MRI that we aim to…

图像与视频处理 · 电气工程与系统科学 2023-08-21 Elina Thibeau-Sutre , Dieuwertje Alblas , Sophie Buurman , Christoph Brune , Jelmer M. Wolterink

Tumor segmentation from multi-modal brain MRI images is a challenging task due to the limited samples, high variance in shapes and uneven distribution of tumor morphology. The performance of automated medical image segmentation has been…

图像与视频处理 · 电气工程与系统科学 2024-02-13 Tianyi Ren , Ethan Honey , Harshitha Rebala , Abhishek Sharma , Agamdeep Chopra , Mehmet Kurt

Despite strong zero-shot performance, SAM is unreliable under domain shift due to Mask-level Confidence Confusion (MCC), where a single IoU-based mask score fails to reflect pixel-wise reliability near boundaries. Motivated by the contrast…

计算机视觉与模式识别 · 计算机科学 2026-05-21 Hongyou Zhou , Marc Toussaint , Ling Shao , Zihan Ye

Dice similarity coefficient (DSC) and Hausdorff distance (HD) are widely used for evaluating medical image segmentation. They have also been criticised, when reported alone, for their unclear or even misleading clinical interpretation. DSCs…

图像与视频处理 · 电气工程与系统科学 2022-04-01 Wen Yan , Qianye Yang , Tom Syer , Zhe Min , Shonit Punwani , Mark Emberton , Dean C. Barratt , Bernard Chiu , Yipeng Hu

Advances in deep neural network (DNN) based molecular property prediction have recently led to the development of models of remarkable accuracy and generalization ability, with graph convolution neural networks (GCNNs) reporting…

机器学习 · 计算机科学 2019-10-09 Gabriele Scalia , Colin A. Grambow , Barbara Pernici , Yi-Pei Li , William H. Green

This paper presents a novel end-to-end framework for closed-form computation and visualization of critical point uncertainty in 2D uncertain scalar fields. Critical points are fundamental topological descriptors used in the visualization…

Measuring cross-sectional areas in ultrasound images is a standard tool to evaluate disease progress or treatment response. Often addressed today with supervised deep-learning segmentation approaches, existing solutions highly depend upon…

图像与视频处理 · 电气工程与系统科学 2023-08-21 Vanessa Gonzalez Duque , Leonhard Zirus , Yordanka Velikova , Nassir Navab , Diana Mateus

Medical segmentation is performed to determine the bounds of regions of interest (ROI) prior to surgery. By allowing the study of growth, structure, and behaviour of the ROI in the planning phase, critical information can be obtained,…

图像与视频处理 · 电气工程与系统科学 2020-10-06 Bao Nguyen , Adam Feldman , Sarath Bethapudi , Andrew Jennings , Chris G. Willcocks

Uncertainty estimation in Neural Networks (NNs) is vital in improving reliability and confidence in predictions, particularly in safety-critical applications. Bayesian Neural Networks (BayNNs) with Dropout as an approximation offer a…

Among Bayesian methods, Monte-Carlo dropout provides principled tools for evaluating the epistemic uncertainty of neural networks. Its popularity recently led to seminal works that proposed activating the dropout layers only during…

机器学习 · 计算机科学 2023-02-07 Emanuele Ledda , Giorgio Fumera , Fabio Roli

Efficient intravascular access in trauma and critical care significantly impacts patient outcomes. However, the availability of skilled medical personnel in austere environments is often limited. Autonomous robotic ultrasound systems can…

计算机视觉与模式识别 · 计算机科学 2024-08-01 Rohini Banerjee , Cecilia G. Morales , Artur Dubrawski

Spatially referenced datasets have become increasingly prevalent across many fields, largely driven by advances in data collection methods such as satellite remote sensing. In many applications, predictions at unobserved locations are…

统计计算 · 统计学 2026-05-19 Isaac Amouzou , Ben Seiyon Lee

Deep learning methods for ophthalmic diagnosis have shown considerable success in tasks like segmentation and classification. However, their widespread application is limited due to the models being opaque and vulnerable to making a wrong…

图像与视频处理 · 电气工程与系统科学 2021-01-29 Amitojdeep Singh , Sourya Sengupta , Mohammed Abdul Rasheed , Varadharajan Jayakumar , Vasudevan Lakshminarayanan

In preoperative imaging, the demarcation of rectal cancer with magnetic resonance images provides an important basis for cancer staging and treatment planning. Recently, deep learning has greatly improved the state-of-the-art method in…

计算机视觉与模式识别 · 计算机科学 2020-01-01 Joohyung Lee , Ji Eun Oh , Min Ju Kim , Bo Yun Hur , Dae Kyung Sohn

Convolutional neural networks (CNNs) have achieved state-of-the-art performance for automatic medical image segmentation. However, they have not demonstrated sufficiently accurate and robust results for clinical use. In addition, they are…

Quantification of uncertainty is one of the most promising approaches to establish safe machine learning. Despite its importance, it is far from being generally solved, especially for neural networks. One of the most commonly used…

机器学习 · 计算机科学 2021-01-11 Joachim Sicking , Maram Akila , Maximilian Pintz , Tim Wirtz , Asja Fischer , Stefan Wrobel

We demonstrate the use of a variational method to determine a quantitative lower bound on the rate of convergence of Markov Chain Monte Carlo (MCMC) algorithms as a function of the target density and proposal density. The bound relies on…

数据分析、统计与概率 · 物理学 2013-05-29 Fergal P. Casey , Joshua J. Waterfall , Ryan N. Gutenkunst , Christopher R. Myers , James P. Sethna

We propose a method for automatic segmentation of individual muscles from a clinical CT. The method uses Bayesian convolutional neural networks with the U-Net architecture, using Monte Carlo dropout that infers an uncertainty metric in…

图像与视频处理 · 电气工程与系统科学 2019-12-10 Yuta Hiasa , Yoshito Otake , Masaki Takao , Takeshi Ogawa , Nobuhiko Sugano , Yoshinobu Sato

Cancer is a primary cause of morbidity and mortality worldwide. The radiotherapy plays a more and more important role in cancer treatment. In the radiotherapy, the dose distribution maps in patient need to be calculated and evaluated for…

医学物理 · 物理学 2019-10-18 Zhao Peng , Hongming Shan , Tianyu Liu , Xi Pei , Jieping Zhou , Ge Wang , X. George Xu