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Pneumonia has been one of the major causes of morbidities and mortality in the world and the prevalence of this disease is disproportionately high among the pediatric and elderly populations especially in resources trained areas Fast and…

计算机视觉与模式识别 · 计算机科学 2026-02-03 Sathish Krishna Anumula , Vetrivelan Tamilmani , Aniruddha Arjun Singh , Dinesh Rajendran , Venkata Deepak Namburi

Medical image segmentation plays a vital role in various clinical applications, enabling accurate delineation and analysis of anatomical structures or pathological regions. Traditional CNNs have achieved remarkable success in this field.…

图像与视频处理 · 电气工程与系统科学 2024-04-18 Seyed M. R. Modaresi , Aomar Osmani , Mohammadreza Razzazi , Abdelghani Chibani

Target imbalance affects the performance of recent deep learning methods in many medical image segmentation tasks. It is a twofold problem: class imbalance - positive class (lesion) size compared to negative class (non-lesion) size; lesion…

图像与视频处理 · 电气工程与系统科学 2020-07-21 Boris Shirokikh , Alexey Shevtsov , Anvar Kurmukov , Alexandra Dalechina , Egor Krivov , Valery Kostjuchenko , Andrey Golanov , Mikhail Belyaev

We focus on the real-world problem of training accurate deep models for image classification of a small number of rare categories. In these scenarios, almost all images belong to the background category in the dataset (>95% of the dataset…

计算机视觉与模式识别 · 计算机科学 2020-09-01 Ravi Teja Mullapudi , Fait Poms , William R. Mark , Deva Ramanan , Kayvon Fatahalian

We introduce CASED, a novel curriculum sampling algorithm that facilitates the optimization of deep learning segmentation or detection models on data sets with extreme class imbalance. We evaluate the CASED learning framework on the task of…

计算机视觉与模式识别 · 计算机科学 2018-07-31 Andrew Jesson , Nicolas Guizard , Sina Hamidi Ghalehjegh , Damien Goblot , Florian Soudan , Nicolas Chapados

Video bronchoscopy is routinely conducted for biopsies of lung tissue suspected for cancer, monitoring of COPD patients and clarification of acute respiratory problems at intensive care units. The navigation within complex bronchial trees…

计算机视觉与模式识别 · 计算机科学 2023-07-18 Ron Keuth , Mattias Heinrich , Martin Eichenlaub , Marian Himstedt

The success of deep architectures is at least in part attributed to the layer-by-layer unsupervised pre-training that initializes the network. Various papers have reported extensive empirical analysis focusing on the design and…

机器学习 · 计算机科学 2015-02-13 Vamsi K Ithapu , Sathya Ravi , Vikas Singh

Deep convolutional neural networks (CNNs) have been intensively used for multi-class segmentation of data from different modalities and achieved state-of-the-art performances. However, a common problem when dealing with large, high…

计算机视觉与模式识别 · 计算机科学 2018-04-13 Chengjia Wang , Tom MacGillivray , Gillian Macnaught , Guang Yang , David Newby

Neural networks are trained primarily based on their inputs and outputs, without regard for their internal mechanisms. These neglected mechanisms determine properties that are critical for safety, like (i) transparency; (ii) the absence of…

机器学习 · 计算机科学 2024-12-02 Alex Cloud , Jacob Goldman-Wetzler , Evžen Wybitul , Joseph Miller , Alexander Matt Turner

Automated airway segmentation from lung CT scans is vital for diagnosing and monitoring pulmonary diseases. Despite advancements, challenges like leakage, breakage, and class imbalance persist, particularly in capturing small airways and…

图像与视频处理 · 电气工程与系统科学 2025-03-04 Ali Keshavarzi , Elsa Angelini

Vanishing (and exploding) gradients effect is a common problem for recurrent neural networks with nonlinear activation functions which use backpropagation method for calculation of derivatives. Deep feedforward neural networks with many…

神经与进化计算 · 计算机科学 2017-02-15 Artem Chernodub , Dimitri Nowicki

Aerial Image Segmentation is a top-down perspective semantic segmentation and has several challenging characteristics such as strong imbalance in the foreground-background distribution, complex background, intra-class heterogeneity,…

计算机视觉与模式识别 · 计算机科学 2023-10-03 Kashu Yamazaki , Taisei Hanyu , Minh Tran , Adrian de Luis , Roy McCann , Haitao Liao , Chase Rainwater , Meredith Adkins , Jackson Cothren , Ngan Le

Automatic pancreas segmentation in radiology images, eg., computed tomography (CT) and magnetic resonance imaging (MRI), is frequently required by computer-aided screening, diagnosis, and quantitative assessment. Yet pancreas is a…

计算机视觉与模式识别 · 计算机科学 2018-04-02 Jinzheng Cai , Le Lu , Fuyong Xing , Lin Yang

Contour shape alignment is a fundamental but challenging problem in computer vision, especially when the observations are partial, noisy, and largely misaligned. Recent ConvNet-based architectures that were proposed to align image…

计算机视觉与模式识别 · 计算机科学 2020-05-26 VSR Veeravasarapu , Abhishek Goel , Deepak Mittal , Maneesh Singh

Airway segmentation, especially bronchioles segmentation, is an important but challenging task because distal bronchus are sparsely distributed and of a fine scale. Existing neural networks usually exploit sparse topology to learn the…

计算机视觉与模式识别 · 计算机科学 2023-03-17 Mingyue Zhao , Shang Zhao , Quan Quan , Li Fan , Xiaolan Qiu , Shiyuan Liu , S. Kevin Zhou

Multi-class segmentation of cardiac magnetic resonance (CMR) images seeks a separation of data into anatomical components with known structure and configuration. The most popular CNN-based methods are optimised using pixel wise loss…

图像与视频处理 · 电气工程与系统科学 2022-09-09 Nick Byrne , James R Clough , Isra Valverde , Giovanni Montana , Andrew P King

Instance segmentation of planar regions in indoor scenes benefits visual SLAM and other applications such as augmented reality (AR) where scene understanding is required. Existing methods built upon two-stage frameworks show satisfactory…

计算机视觉与模式识别 · 计算机科学 2021-03-30 Yaxu Xie , Jason Rambach , Fangwen Shu , Didier Stricker

Unsupervised learning of depth from indoor monocular videos is challenging as the artificial environment contains many textureless regions. Fortunately, the indoor scenes are full of specific structures, such as planes and lines, which…

计算机视觉与模式识别 · 计算机科学 2021-10-13 Hualie Jiang , Laiyan Ding , Junjie Hu , Rui Huang

Semantic segmentation from aerial views is a crucial task for autonomous drones, as they rely on precise and accurate segmentation to navigate safely and efficiently. However, aerial images present unique challenges such as diverse…

计算机视觉与模式识别 · 计算机科学 2024-05-24 Benedikt Kolbeinsson , Krystian Mikolajczyk

Pneumothorax, also called a collapsed lung, refers to the presence of the air in the pleural space between the lung and chest wall. It can be small (no need for treatment), or large and causes death if it is not identified and treated on…

图像与视频处理 · 电气工程与系统科学 2020-09-09 Ayat Abedalla , Malak Abdullah , Mahmoud Al-Ayyoub , Elhadj Benkhelifa