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The brain tumor segmentation task aims to classify tissue into the whole tumor (WT), tumor core (TC), and enhancing tumor (ET) classes using multimodel MRI images. Quantitative analysis of brain tumors is critical for clinical decision…

图像与视频处理 · 电气工程与系统科学 2020-12-15 Saqib Qamar , Parvez Ahmad , Linlin Shen

Magnetic Resonance Imaging (MRI) is the most commonly used non-intrusive technique for medical image acquisition. Brain tumor segmentation is the process of algorithmically identifying tumors in brain MRI scans. While many approaches have…

图像与视频处理 · 电气工程与系统科学 2022-11-04 Jason Walsh , Alice Othmani , Mayank Jain , Soumyabrata Dev

Class Activation Mapping (CAM) is a powerful technique used to understand the decision making of Convolutional Neural Network (CNN) in computer vision. Recently, there have been attempts not only to generate better visual explanations, but…

机器学习 · 计算机科学 2021-05-04 Kwang Hee Lee , Chaewon Park , Junghyun Oh , Nojun Kwak

Extracting class activation maps (CAM) is a key step for weakly-supervised semantic segmentation (WSSS). The CAM of convolution neural networks fails to capture long-range feature dependency on the image and result in the coverage on only…

计算机视觉与模式识别 · 计算机科学 2022-11-22 Jianqiang Huang , Jian Wang , Qianru Sun , Hanwang Zhang

Classification networks can be used to localize and segment objects in images by means of class activation maps (CAMs). However, without pixel-level annotations, classification networks are known to (1) mainly focus on discriminative…

计算机视觉与模式识别 · 计算机科学 2023-04-05 Arvi Jonnarth , Michael Felsberg

Tumor segmentation stands as a pivotal task in cancer diagnosis. Given the immense dimensions of whole slide images (WSI) in histology, deep learning approaches for WSI classification mainly operate at patch-wise or superpixel-wise level.…

计算机视觉与模式识别 · 计算机科学 2024-02-22 Huaqian Wu , Clara Brémond-Martin , Kévin Bouaou , Cédric Clouchoux

Weakly Supervised Semantic Segmentation (WSSS) is challenging, particularly when image-level labels are used to supervise pixel level prediction. To bridge their gap, a Class Activation Map (CAM) is usually generated to provide pixel level…

计算机视觉与模式识别 · 计算机科学 2022-05-11 Weixuan Sun , Jing Zhang , Zheyuan Liu , Yiran Zhong , Nick Barnes

Accurate and automatic segmentation of brain tumors in multi-parametric magnetic resonance imaging (mpMRI) is essential for quantitative measurements, which play an increasingly important role in clinical diagnosis and prognosis. The…

Brain tumor segmentation remains a significant challenge, particularly in the context of multi-modal magnetic resonance imaging (MRI) where missing modality images are common in clinical settings, leading to reduced segmentation accuracy.…

图像与视频处理 · 电气工程与系统科学 2024-06-14 Zhongao Sun , Jiameng Li , Yuhan Wang , Jiarong Cheng , Qing Zhou , Chun Li

In recent years, weakly supervised models have aided in mass detection using mammography images, decreasing the need for pixel-level annotations. However, most existing models in the literature rely on Class Activation Maps (CAM) as the…

计算机视觉与模式识别 · 计算机科学 2023-08-08 Vicente Sampaio , Filipe R. Cordeiro

Screening mammograms is the gold standard for detecting breast cancer early. While a good amount of work has been performed on mammography image classification, especially with deep neural networks, there has not been much exploration into…

机器学习 · 计算机科学 2020-08-14 Anika Tabassum , Naimul Khan

Magnetic Resonance Imaging (MRI) is widely used in the pathological and functional studies of the brain, such as epilepsy, tumor diagnosis, etc. Automated accurate brain tissue segmentation like cerebro-spinal fluid (CSF), gray matter (GM),…

计算机视觉与模式识别 · 计算机科学 2018-08-07 Yao Sun , Yang Deng , Yue Xu , Shuo Zhang , Mingwang Zhu , Kehong Yuan

Abnormal growth of cells in the brain and its surrounding tissues is known as a brain tumor. There are two types, one is benign (non-cancerous) and another is malignant (cancerous) which may cause death. The radiologists' ability to…

图像与视频处理 · 电气工程与系统科学 2023-10-05 Abu Kaisar Mohammad Masum , Nusrat Badhon , S. M. Saiful Islam Badhon , Nushrat Jahan Ria , Sheikh Abujar , Muntaser Mansur Syed , Naveed Mahmud

Accurate detection of brain tumors could save lots of lives and increasing the accuracy of this binary classification even as much as a few percent has high importance. Neural Gas Networks (NGN) is a fast, unsupervised algorithm that could…

图像与视频处理 · 电气工程与系统科学 2023-01-31 S. Muhammad Hossein Mousavi

Weakly supervised semantic segmentation (WSSS) aims to produce pixel-wise class predictions with only image-level labels for training. To this end, previous methods adopt the common pipeline: they generate pseudo masks from class activation…

计算机视觉与模式识别 · 计算机科学 2022-08-09 Sungpil Kho , Pilhyeon Lee , Wonyoung Lee , Minsong Ki , Hyeran Byun

In this study, an automated three dimensional (3D) deep segmentation approach for detecting gliomas in 3D pre-operative MRI scans is proposed. Then, a classi-fication algorithm based on random forests, for survival prediction is presented.…

图像与视频处理 · 电气工程与系统科学 2019-11-20 Mehdi Amian , Mohammadreza Soltaninejad

Segmentation of brain magnetic resonance images (MRI) is crucial for the analysis of the human brain and diagnosis of various brain disorders. The drawbacks of time-consuming and error-prone manual delineation procedures are aimed to be…

计算机视觉与模式识别 · 计算机科学 2022-05-20 Can Taylan Sari , Sila Kurugol , Onur Afacan , Simon K. Warfield

Brain tumor image segmentation is a challenging research topic in which deep-learning models have presented the best results. However, the traditional way of training those models from many pre-annotated images leaves several unanswered…

计算机视觉与模式识别 · 计算机科学 2024-03-20 Matheus A. Cerqueira , Flávia Sprenger , Bernardo C. A. Teixeira , Alexandre X. Falcão

The growth of abnormal cells in the brain's tissue causes brain tumors. Brain tumors are considered one of the most dangerous disorders in children and adults. It develops quickly, and the patient's survival prospects are slim if not…

Image-level weakly-supervised semantic segmentation (WSSS) reduces the usually vast data annotation cost by surrogate segmentation masks during training. The typical approach involves training an image classification network using global…

计算机视觉与模式识别 · 计算机科学 2024-06-10 Arvi Jonnarth , Yushan Zhang , Michael Felsberg