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Widely used loss functions for CNN segmentation, e.g., Dice or cross-entropy, are based on integrals over the segmentation regions. Unfortunately, for highly unbalanced segmentations, such regional summations have values that differ by…

图像与视频处理 · 电气工程与系统科学 2020-10-20 Hoel Kervadec , Jihene Bouchtiba , Christian Desrosiers , Eric Granger , Jose Dolz , Ismail Ben Ayed

We introduce an accurate lung segmentation model for chest radiographs based on deep convolutional neural networks. Our model is based on atrous convolutional layers to increase the field-of-view of filters efficiently. To improve…

计算机视觉与模式识别 · 计算机科学 2017-08-03 Sangheum Hwang , Sunggyun Park

Chest radiography is an effective screening tool for diagnosing pulmonary diseases. In computer-aided diagnosis, extracting the relevant region of interest, i.e., isolating the lung region of each radiography image, can be an essential step…

图像与视频处理 · 电气工程与系统科学 2022-02-23 Hilda Azimi , Jianxing Zhang , Pengcheng Xi , Hala Asad , Ashkan Ebadi , Stephane Tremblay , Alexander Wong

Active learning (AL) has found wide applications in medical image segmentation, aiming to alleviate the annotation workload and enhance performance. Conventional uncertainty-based AL methods, such as entropy and Bayesian, often rely on an…

计算机视觉与模式识别 · 计算机科学 2024-01-30 Siteng Ma , Haochang Wu , Aonghus Lawlor , Ruihai Dong

Diffusion-weighted magnetic resonance imaging (DW-MRI) is a powerful, non-invasive tool for detecting and characterizing abdominal lesions to facilitate early diagnosis, but respiratory motion during a scan reduces image quality and…

图像与视频处理 · 电气工程与系统科学 2024-11-19 Michelle Su , Cemre Ariyurek , Serge Vasylechko , Onur Afacan , Sila Kurugol

Pathological lung segmentation (PLS) is an important, yet challenging, medical image application due to the wide variability of pathological lung appearance and shape. Because PLS is often a pre-requisite for other imaging analytics,…

计算机视觉与模式识别 · 计算机科学 2018-02-09 Adam P. Harrison , Ziyue Xu , Kevin George , Le Lu , Ronald M. Summers , Daniel J. Mollura

The lane graph is critical for applications such as autonomous driving and lane-level route planning. While previous research has focused on extracting lane-level graphs from aerial imagery using convolutional neural networks (CNNs)…

计算机视觉与模式识别 · 计算机科学 2025-11-18 Antonio Ruiz , Andrew Melnik , Nicolo Savioli , Dong Wang , Yanfeng Zhang , Helge Ritter

The efficacy of segmentation algorithms is frequently compromised by topological errors like overlapping regions, disrupted connections, and voids. To tackle this problem, we introduce a novel loss function, namely Topology-Aware Focal Loss…

图像与视频处理 · 电气工程与系统科学 2023-04-28 Andac Demir , Elie Massaad , Bulent Kiziltan

Accurate lung lesion segmentation from Computed Tomography (CT) images is crucial to the analysis and diagnosis of lung diseases such as COVID-19 and lung cancer. However, the smallness and variety of lung nodules and the lack of…

图像与视频处理 · 电气工程与系统科学 2022-04-15 Changwei Wang , Rongtao Xu , Shibiao Xu , Weiliang Meng , Jun Xiao , Xiaopeng Zhang

Multiple Instance Learning (MIL) has become the predominant approach for classification tasks on gigapixel histopathology whole slide images (WSIs). Within the MIL framework, single WSIs (bags) are decomposed into patches (instances), with…

计算机视觉与模式识别 · 计算机科学 2023-03-03 Daniel Sens , Ario Sadafi , Francesco Paolo Casale , Nassir Navab , Carsten Marr

Segmentation is a fundamental task in medical image analysis. However, most existing methods focus on primary region extraction and ignore edge information, which is useful for obtaining accurate segmentation. In this paper, we propose a…

计算机视觉与模式识别 · 计算机科学 2019-07-26 Zhijie Zhang , Huazhu Fu , Hang Dai , Jianbing Shen , Yanwei Pang , Ling Shao

This paper proposes an efficient solution for tumor segmentation and classification in breast ultrasound (BUS) images. We propose to add an atrous convolution layer to the conditional generative adversarial network (cGAN) segmentation model…

图像与视频处理 · 电气工程与系统科学 2019-07-02 Vivek Kumar Singh , Hatem A. Rashwan , Mohamed Abdel-Nasser , Md. Mostafa Kamal Sarker , Farhan Akram , Nidhi Pandey , Santiago Romani , Domenec Puig

In recent years, the integration of deep learning techniques into medical imaging has revolutionized the diagnosis and treatment of lung diseases, particularly in the context of COVID-19 and pneumonia. This paper presents a novel,…

图像与视频处理 · 电气工程与系统科学 2024-08-14 Md. Asiful Islam Miah , Shourin Paul , Sunanda Das , M. M. A. Hashem

Accurate delineation of pathological lungs from computed tomography (CT) images remains mostly unsolved because available methods fail to provide a reliable generic solution due to high variability of abnormality appearance. Local…

计算机视觉与模式识别 · 计算机科学 2016-11-15 Awais Mansoor , Ulas Bagci , Daniel J. Mollura

Finding small lesions is very challenging due to lack of noticeable features, severe class imbalance, as well as the size itself. One approach to improve small lesion segmentation is to reduce the region of interest and inspect it at a…

图像与视频处理 · 电气工程与系统科学 2022-08-01 Seung Yeon Shin , Thomas C. Shen , Stephen A. Wank , Ronald M. Summers

Efficient automatic segmentation of multi-level (i.e. main and branch) pulmonary arteries (PA) in CTPA images plays a significant role in clinical applications. However, most existing methods concentrate only on main PA or branch PA…

Automated segmentation of Lungs plays a crucial role in the computer-aided diagnosis of chest X-Ray (CXR) images. Developing an efficient Lung segmentation model is challenging because of difficulties such as the presence of several edges…

计算机视觉与模式识别 · 计算机科学 2018-12-03 Jyoti Islam , Yanqing Zhang

We propose Region-wise (RW) loss for biomedical image segmentation. Region-wise loss is versatile, can simultaneously account for class imbalance and pixel importance, and it can be easily implemented as the pixel-wise multiplication…

图像与视频处理 · 电气工程与系统科学 2022-03-30 Juan Miguel Valverde , Jussi Tohka

Tooth segmentation is a critical technology in the field of medical image segmentation, with applications ranging from orthodontic treatment to human body identification and dental pathology assessment. Despite the development of numerous…

计算机视觉与模式识别 · 计算机科学 2024-09-09 Dongping Zhang , Zheng Li , Fangao Zeng , Yutong Wei

Medical image segmentation, particularly in multi-domain scenarios, requires precise preservation of anatomical structures across diverse representations. While deep learning has advanced this field, existing models often struggle with…

计算机视觉与模式识别 · 计算机科学 2025-05-27 Afshin Bozorgpour , Sina Ghorbani Kolahi , Reza Azad , Ilker Hacihaliloglu , Dorit Merhof