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Manual annotation of 3D medical images for segmentation tasks is tedious and time-consuming. Moreover, data privacy limits the applicability of crowd sourcing to perform data annotation in medical domains. As a result, training deep neural…

Computer Vision and Pattern Recognition · Computer Science 2024-10-15 Ruitong Sun , Mohammad Rostami

Automatic semantic segmentation of magnetic resonance imaging (MRI) images using deep neural networks greatly assists in evaluating and planning treatments for various clinical applications. However, training these models is conditioned on…

Computer Vision and Pattern Recognition · Computer Science 2024-01-17 Navapat Nananukul , Hamid Soltanian-zadeh , Mohammad Rostami

For 3D medical image (e.g. CT and MRI) segmentation, the difficulty of segmenting each slice in a clinical case varies greatly. Previous research on volumetric medical image segmentation in a slice-by-slice manner conventionally use the…

Image and Video Processing · Electrical Eng. & Systems 2022-07-12 Wenxuan Wang , Chen Chen , Jing Wang , Sen Zha , Yan Zhang , Jiangyun Li

Transformer-based neural networks have surpassed promising performance on many biomedical image segmentation tasks due to a better global information modeling from the self-attention mechanism. However, most methods are still designed for…

Computer Vision and Pattern Recognition · Computer Science 2023-02-02 Zheyuan Zhang , Ulas Bagci

Weakly supervised point cloud semantic segmentation methods that require 1\% or fewer labels, hoping to realize almost the same performance as fully supervised approaches, which recently, have attracted extensive research attention. A…

Computer Vision and Pattern Recognition · Computer Science 2022-09-19 Tianfang Sun , Zhizhong Zhang , Xin Tan , Yanyun Qu , Yuan Xie , Lizhuang Ma

Annotation cost is a bottleneck for collecting massive data in mammography, especially for training deep neural networks. In this paper, we study the use of heterogeneous levels of annotation granularity to improve predictive performances.…

Image and Video Processing · Electrical Eng. & Systems 2019-09-13 Thi-Lam-Thuy Le , Nicolas Thome , Sylvain Bernard , Vincent Bismuth , Fanny Patoureaux

Manual medical image segmentation is subjective and suffers from annotator-related bias, which can be mimicked or amplified by deep learning methods. Recently, researchers have suggested that such bias is the combination of the annotator…

Computer Vision and Pattern Recognition · Computer Science 2023-06-29 Zehui Liao , Yutong Xie , Shishuai Hu , Yong Xia

Brain tumors pose a serious health threat due to their rapid growth and potential for metastasis. While medical imaging has advanced significantly, accurately identifying and characterizing these tumors remains a challenge. This study…

Image and Video Processing · Electrical Eng. & Systems 2024-11-05 Mahin Mohammadi , Saman Jamshidi

The training of deep learning models generally requires a large amount of annotated data for effective convergence and generalisation. However, obtaining high-quality annotations is a laboursome and expensive process due to the need of…

Computer Vision and Pattern Recognition · Computer Science 2021-11-05 Fengbei Liu , Yu Tian , Filipe R. Cordeiro , Vasileios Belagiannis , Ian Reid , Gustavo Carneiro

In recent years, deep learning has become a breakthrough technique in assisting medical image diagnosis. Supervised learning using convolutional neural networks (CNN) provides state-of-the-art performance and has served as a benchmark for…

Image and Video Processing · Electrical Eng. & Systems 2023-06-30 Tao Wang , Xinlin Zhang , Yuanbo Zhou , Junlin Lan , Tao Tan , Min Du , Qinquan Gao , Tong Tong

While deep learning methods have shown great success in medical image analysis, they require a number of medical images to train. Due to data privacy concerns and unavailability of medical annotators, it is oftentimes very difficult to…

Image and Video Processing · Electrical Eng. & Systems 2020-10-08 Yue Yang , Pengtao Xie

For brain tumour segmentation, deep learning models can achieve human expert-level performance given a large amount of data and pixel-level annotations. However, the expensive exercise of obtaining pixel-level annotations for large amounts…

Computer Vision and Pattern Recognition · Computer Science 2023-10-11 Xiao Liu , Antanas Kascenas , Hannah Watson , Sotirios A. Tsaftaris , Alison Q. O'Neil

Understanding the morphological structure of medical images and precisely segmenting the region of interest or abnormality is an important task that can assist in diagnosis. However, the unique properties of medical imaging make clear…

Computer Vision and Pattern Recognition · Computer Science 2024-09-04 Sungmin Kang , Jaeha Song , Jihie Kim

Recent advancements in self-supervised learning have unlocked the potential to harness unlabeled data for auxiliary tasks, facilitating the learning of beneficial priors. This has been particularly advantageous in fields like medical image…

Computer Vision and Pattern Recognition · Computer Science 2024-04-30 Pranav Singh , Jacopo Cirrone

Multi-modal brain images from MRI scans are widely used in clinical diagnosis to provide complementary information from different modalities. However, obtaining fully paired multi-modal images in practice is challenging due to various…

Image and Video Processing · Electrical Eng. & Systems 2024-04-25 Chuan Huang , Jia Wei , Rui Li

In medical image segmentation tasks, the scarcity of labeled training data poses a significant challenge when training deep neural networks. When using U-Net-style architectures, it is common practice to address this problem by pretraining…

Computer Vision and Pattern Recognition · Computer Science 2025-06-09 Gábor Hidy , Bence Bakos , András Lukács

Semi-supervised learning, which leverages both annotated and unannotated data, is an efficient approach for medical image segmentation, where obtaining annotations for the whole dataset is time-consuming and costly. Traditional…

Computer Vision and Pattern Recognition · Computer Science 2025-02-06 Ruizhe Li , Grazziela Figueredo , Dorothee Auer , Rob Dineen , Paul Morgan , Xin Chen

Successive proposals of several self-supervised training schemes continue to emerge, taking one step closer to developing a universal foundation model. In this process, the unsupervised downstream tasks are recognized as one of the…

Computer Vision and Pattern Recognition · Computer Science 2024-11-01 Sonal Kumar , Arijit Sur , Rashmi Dutta Baruah

Accurate and reliable brain tumor segmentation, particularly when dealing with missing modalities, remains a critical challenge in medical image analysis. Previous studies have not fully resolved the challenges of tumor boundary…

Computer Vision and Pattern Recognition · Computer Science 2025-07-31 Shenghao Zhu , Yifei Chen , Weihong Chen , Yuanhan Wang , Chang Liu , Shuo Jiang , Feiwei Qin , Changmiao Wang

Brain tumor segmentation is an active research area due to the difficulty in delineating highly complex shaped and textured tumors as well as the failure of the commonly used U-Net architectures. The combination of different neural…

Image and Video Processing · Electrical Eng. & Systems 2023-08-02 Lanhong Yao , Zheyuan Zhang , Ulas Bagci